Boeing 727-100

Hewa Bora Airways

Following an uneventful flight from Kinshasa, the crew started the descent to Kisangani-Bangoka Airport in poor weather conditions with low visibility due to heavy rain falls. On final approach, the pilot did not establish any visual contact with the runway but continued until the aircraft impacted ground some 1,000 metres short of runway 31. On impact, the aircraft went out of control, veered to the right, exploded and disintegrated in a wooded area located to the right of the approach path. The wreckage was found about 500 metres southeast from the runway 31 threshold. Five crew and 72 passengers were killed.

Aerosucre Colombia

The Boeing 727 departed Bogotá-El Dorado Airport on a night cargo flight to Leticia, carrying 3 passengers, 3 crew members and a load of 13,166 kilos of fish. While descending to Leticia-Alfredo Vásquez Cobo Airport, the crew was informed about the weather conditions at destination with a visibility down to 4 km with local patches of fog. On approach, the crew asked ATC to improve the runway lights intensity as the runway 21 is not equipped with approach lights. On short final, at a height of about 150 feet, the aircraft collided with a television antenna and crashed in a wooded area located 3,7 km short of runway 21, bursting into flames. The aircraft was totally destroyed and all six occupants were killed.

Miba Aviation - Société Minière de Bakwanga

The aircraft was completing a cargo flight with various equipments on behalf of the Conader, the Commission Nationale de Désarmement et de Réinsertion. Following an uneventful flight, the crew started the approach in heavy rain falls. After landing on a wet runway, the aircraft was unable to stop within the remaining distance and overran. It lost its undercarriage and came to rest in marshy field. All three occupants escaped uninjured while the aircraft was damaged beyond repair. Aquaplaning suspected.

Varig Log

After touchdown on runway 16 at Belo Horizonte-Tancredo Neves-Confins Airport, the three engine aircraft went out of control, veered off runway at high speed, lost its undercarriage and came to rest. All three crew members evacuated safely while the aircraft was damaged beyond repair.

Transportes Aéreos Mercantiles Ecuatorianos - TAME

The aircraft departed Quito-Mariscal Sucre Airport runway 17 at 1001LT on a flight to Cali with an intermediate stop in Tulcán, carrying 87 passengers and 7 crew members. The flight was completed at an altitude of 18,000 feet on airway G-675 towards Ipiales, south Colombia. At a distance of 29 NM from Tulcán, the crew was cleared to descend to 14,000 feet and was briefed about the last weather conditions at destination. For unknown reasons, the crew failed to comply with the company SOP's and started the descent at an excessive speed of 230 knots while the approach procedure called for a speed of 180 knots. Also, the crew was not following the proper approach track for the Tulcán-Teniente Coronel Luis A. Mantilla Airport. In poor visibility due to clouds, at an altitude of 14,700 feet, the aircraft struck the slope of Mt El Cumbal located about 30 km northwest of Ipiales. The aircraft disintegrated on impact and all 94 occupants were killed. The wreckage was found 1,400 feet below the summit.

Angola Air Charter

On final approach to runway 08 at Nzagi Airport, the aircraft was too low, causing the right main gear to struck an earth mound located about 100 metres short of runway threshold. Upon touchdown, the right main gear collapsed and the aircraft came to rest partially on its belly. All 11 occupants escaped uninjured while the aircraft was damaged beyond repair. It was reported that the copilot was the pilot-in-command at the time of the accident. Wind was from 130 at 12-15 knots.

Air Gemini

On final approach to Dundo Airport, on the last segment, the pilot-in-command reduced both engines power when the aircraft lost height and landed hard. Upon impact, the right main gear collapsed. The aircraft slid for few dozen metres, veered off runway to the right and came to rest near houses. All 10 people on board the aircraft escaped uninjured while one people on the ground was killed. The aircraft was written off.

Transafrik

Following an uneventful cargo flight from Salima, the crew started the descent to Luanda-4 de Fevereiro Airport runway 23. Due to very bad weather conditions, the aircraft was unstable on final and the pilot decided to initiate a go-around. Few minutes later, while attempting a second approach to land, the aircraft was rolling left and right, causing the right wing to hit the runway surface. The aircraft landed hard, broke in two and came to rest few hundred metres further on the main runway. All seven occupants escaped uninjured while the aircraft was damaged beyond repair. It was reported that weather conditions were very bad at the time of the accident with heavy rain falls and wind gusting from 50 to 80 knots.

Congo Airlines

Three minutes after takeoff from Kindu Airport, while climbing, the captain contacted ATC and reported an explosion in the rear of the aircraft. He was able to maintain contact with ATC for few minutes when the aircraft crashed in a jungle some 39 km east of the Airport, 11 minutes later. The aircraft was totally destroyed upon impact and all 41 occupants were killed, among them 20 woman and children.

Ryan International Airlines

As the cargo jet was taxiing for takeoff in a non movement area, it was struck by an airport employee shuttle bus. The airplane captain was seriously injured. Visual meteorological conditions prevailed, and the collision occurred during predawn hours. The bus driver said he stopped at the stop sign, turned on the 4-way flasher lights, and looked both ways. He saw one inbound aircraft to the right that had stopped. He did not see the airplane approaching from the left as he started across the cargo ramp. The airplane crew stated they did not see the bus until seconds before impact. Airplane skid marks, measuring 22 and 24 feet in length, were noted on the taxiway. No bus skid marks were noted on the roadway.

Angola Air Charter

Damaged beyond repair following a hard landing at Lucapa Airport. All four crew members escaped uninjured.

Aerosucre Colombia

During the takeoff roll un runway 31 at Bogotá-El Dorado Airport, at a speed of 130 knots, the crew heard two explosions. As the aircraft started to vibrate, the captain decided to abandon the takeoff procedure and initiated an emergency braking manoeuvre. Unable to stop within the remaining distance, the aircraft overran, rolled for 497 metres then lost its nose gear and came to rest. All six occupants escaped uninjured while the aircraft was damaged beyond repair.

Angola Air Charter

While descending to Huambo-Albano Machado Airport, the crew was informed by ATC that works were in progress and the first 500 metres portion of the runway 01/19 was closed to traffic. Following a wrong approach configuration, the aircraft landed too far down the runway (about half way down) and was unable to stop within the remaining distance. It overran, lost its undercarriage and came to rest 250 metres further. All three crew members escaped uninjured while the aircraft was damaged beyond repair.

Transafrik

On final approach to M'Banza Kongo Airport, the aircraft was too low and struck the ground 3,200 metres short of runway. It reached a little altitude then descended again and struck the ground a second time two metres short of runway. On impact, the left main gear struck a drainage ditch and was torn off. The aircraft slid on the ground, veered to the right when the right wing struck a bus. All three crew members escaped with minor injuries while seven people in the bus were killed.

SAM Colombia - Sociedad Aeronáutica de Medellín

On the leg from Panama City to Medellín, the crew was approaching the Abejorral NDB at an altitude of 16,000 feet and was cleared to descend to FL120. Few minutes later, while descending to the altitude of 12,300 feet in poor weather conditions, the three engine aircraft struck the slope of Mt Páramo Frontino located about 85 km northwest of Medellín-José María Córdova Airport. The aircraft disintegrated on impact and all 132 occupants were killed. At the time of the accident, the visibility was poor due to clouds, mist and rain.

Ryan International Airlines

N425EX was on the takeoff roll when the flightcrew experienced a 'thump' that resounded through the airplane. They also observed erratic engine indications from the n°3 engine. The captain aborted the takeoff and stopped the airplane on the runway. The fire warning system activated on the n°3 engine after the airplane came to rest. The crew attempted to extinguish the fire with the airplane's fire extinguishing system; however, they were unsuccessful. The post accident examination of the n°3 engine revealed the high pressure compressor disk had failed due to a fatigue crack that originated from a corrosion pit. The shrapnel from the disk penetrated the engine nacelle and severed the main fuel line for the engine. The fuel ignited and burned into the fuselage, igniting the 12,600 lbs of cargo (US Mail).

Avianca

After takeoff from Bogotá-El Dorado Airport, the crew was cleared to climb to FL130 when the aircraft suffered an explosion. It entered an uncontrolled descent and crashed in a huge explosion near Soacha, about 16 km south of Bogotá Airport. The aircraft disintegrated on impact and all 107 occupants were killed as well as three people on the ground.

Trans World Airlines - TWA

Scheduled domestic part 121 flight could not get landing gear to extend on approach to Chicago-Midway Airport. After missed approach, crew tried unsuccessfully to extend gear manually using procedures in cockpit checklist and flight operations manual. Emergency gear-up landing was made at Chicago-O'Hare International Airport. Investigation revealed a disconnected gear selector actuating rod from the normal landing gear retract/extension actuating assembly. Crew damaged manual gear extension mechanism in manual extension attempts. FAA approved procedural checklist had omitted critical step in manual gear extension procedure.

Lineas Aéreas Costarricenses - LACSA

During the takeoff roll on runway 07, at V1 speed, the captain started the rotation but the aircraft failed to respond. The crew decided to abandon the takeoff procedure and initiated an emergency braking maneuver. unable to stop within the remaining distance, the aircraft overran, crossed a ditch and came to rest in a field, bursting into flames. All 26 occupants escaped with minor injuries while the aircraft was destroyed by a post crash fire.

Avianca

Avianca flight 410 was destroyed when it impacted El Espartillo Mountain after takeoff from Cúcuta Airport in Colombia. All 143 occupants sustained fatal injuries. The aircraft, a Boeing 727-21 operated flight AV410 from Bucaramanga to Barranquilla, with en route stops at Cúcuta and Cartagena. Because the originally planned aircraft was not available, HK-1716 was prepared for the flight. This resulted in a departure delay of 2 hours and 30 minutes. The flight landed at Cúcuta at 12:28 local time. At 13:06, the pilot requested clearance to start, but he was told there was a 10-minute delay because of three incoming aircraft. The crew immediately requested clearance for a climb on course ("Why not clear us to climb on course to avoid delaying this flight further? We're: pretty far behind") and the tower granted their request at 13:08: "OK, cleared for engine start, climb on course VMC, report ready to taxi, temperature 28°". This, added to the anomalous presence in the cockpit of another pilot whose loquaciousness continually disrupted the work of all the crew members, affected the way in which the pilot supervised the actions of his co-pilot, who was Pilot Flying. There was no crew briefing, nor did the pilot-in command give any instructions for the VMC departure. Two minutes later the tower controller instructed them to taxi to runway 33. At 13:12 the tower reported, "Cleared to Cartagena via Uniform Whisky 19, Whisky 7, Whisky 10, climb and maintain two six zero after takeoff, climb on course VMC, QNH ....correction transponder Alpha 2216". Take-off clearance was issued at 13:13. The initial climb path followed the extended runway centre line to the inner marker, at which point the aircraft entered a continuous left turn. At 13:17 the pilot said to the copilot, "In any case, start turning right." Subsequently the aircraft struck the peak of El Espartillo at an elevation of 6,343 feet.

Alaska Airlines

The mechanic in charge of taxiing the Boeing 727 allowed an unauthorized avionics technician to occupy the pilot seat. They inadvertently deactivated the brake pressurization system and struck a passenger jetway at the terminal gate. An ensuing fire destroyed the airplane and a company ground vehicle and extensively damaged the jetway. The terminal gate was also damaged. A total of 11 persons were injured.

SAM Colombia - Sociedad Aeronáutica de Medellín

For unknown reasons, the airplane belly landed at San Andrés Airport and came to rest. There were no casualties while the aircraft was damaged beyond repair.

Iran Air

Two mechanics took over the airplane to complete a high-speed taxi check following maintenance. While taxiing, the airplane went out of control and veered off taxiway, causing the left main gear and the nose gear to collapse. The airplane came to rest on soft ground and was damaged beyond repair while both occupants escaped uninjured.

Aerotal Colombia - Aerolineas Territoriales de Colombia

Upon landing at Santa Marta-Simón Bolívar Airport, the left main gear collapsed. The airplane came to rest on runway and was damaged beyond repair. There were no injuries.

Aerotal Colombia - Aerolineas Territoriales de Colombia

On final approach to Santa Marta-Simón Bolívar Airport, the crew failed to realize his altitude was insufficient when the airplane stuck the ground few dozen meters short of runway threshold. The aircraft bounced and landed hard on runway. Upon touchdown, the left main gear was partially torn off. The aircraft went out of control, veered off runway to the left and came to rest. All 50 occupants were evacuated safely while the aircraft was damaged beyond repair.

Air Micronesia

Air Micronesia Flight 614 departed Saipan at 07:30 for a flight to Palau with intermediate stops in Guam and Yap, Western Caroline Islands. The aircraft departed Guam at 08:30 and climbed to FL350. An en route descent to Yap was made from the north through broken to scattered clouds and the captain, who was flying the aircraft, turned onto a downwind leg at the northeast portion of the airport. The downwind leg was flown at an altitude of 600 feet above the runway 07 elevation while the crew checked to see if the runway was clear, to see if the fire truck was in place, and to see the direction of the windsock. The flaps were set at 30° on the base leg. Abeam the approach end of runway 07, the captain began a right 90° and a left turn manoeuvre to align the aircraft with the final approach to runway 07. During a portion of the downwind leg, the captain relinquished control of the aircraft to the first officer while the captain took pictures of the airport. He then resumed control and passed the camera to the second officer and asked him to take pictures of the runway. As the aircraft passed through 90deg from the runway heading, it had descended to about 300 feet above the runway elevation of 52 feet msl. When the aircraft was aligned with the runway heading, it was about 480 feet above runway elevation at a point 1.5 miles from the approach end of the runway. At 09:52 the aircraft touched down 13 feet short of runway 07. The right main landing gear immediately separated from the aircraft. The aircraft gradually veered off the runway and came to rest in the jungle about 1,700 feet beyond the initial touchdown. A severe ground fire erupted immediately along the right side of the aircraft as it came to rest. All occupants had evacuated within about 1 minute after the aircraft came to rest.

Pan American World Airways - PAA

On final approach to San José-Juan Santamaría Airport, the crew encountered poor weather conditions. In limited visibility due to rain falls, the airplane descended below the glide until the right main gear struck the ground 15 meters short of runway 07 threshold. On impact, the landing gear was torn off. Out of control, the airplane struck the ground, lost its undercarriage then slid on several dozen meters before coming to rest. All 73 occupants escaped uninjured while the aircraft christened 'Clipper Meteor' was damaged beyond repair.

Dan-Air London

Dan-Air flight 1008 took off from Manchester Airport (MAN) at 09:22 UTC en route for Tenerife-Norte Los Rodeos Airport (TFN). After an uneventful flight, the crew contacted Tenerife North Airport Approach Control at 13:14, informing them that they were at FL110 and at 14 nautical miles from the TFN VOR/DME. Approach Control replied, "Dan Air one zero zero eight, cleared to the Foxtrot Papa beacon via Tango Foxtrot November, flight level one one zero expect runway one two, no delay." The Dan Air crew repeated the clearance and requested meteorological information, which was given as: "OK runway in use one two, the wind one two zero zero five, visibility six from seven kilometres clouds, two oktas at one two zero metres, plus four oktas at two five zero metres, plus two oktas at three five zero metres, November Hotel one zero three, temperature one six, dew point one, and drizzle." Approximately one minute later Approach Control told the aircraft to descend and maintain FL60. Receipt of this message was acknowledged by the aircraft, whereupon the controller immediately requested it to indicate its distance from the TFN beacon. The crew replied that it was at 7 NM from TFN. At 13:18:48 UTC the aircraft notified Approach Control that it had just passed TFN and that it was heading for the 'FP' beacon. The controller then informed them of an unpublished hold over Foxtrot Papa: "Roger, the standard holding over Foxtrot Papa is inbound heading one five zero, turn to the left, call you back shortly." Dan Air 1008 only replied "Roger" without repeating the information received, which was not compulsory under the ICAO regulations in force at the time of the accident. Almost one minute later, the aircraft the crew reported: "Dan Air one zero eight, Foxtrot Papa level at six zero, taking up the hold" and Tenerife APP replied: "Roger". Instead of passing overhead FP, the flight had passed this navaid at 1.59 NM to the South. Instead of entering the 255 radial, the Boeing 727 continued its trajectory in the direction of 263 degrees for a duration of more than 20 seconds, entering an area with a minimum safety altitude (MSA) of 14500 ft. The co-pilot at that point said: "Bloody strange hold, isn't it?" The captain remarked "Yes, doesn't isn't parallel with the runway or anything." The flight engineer then also made some remarks about the holding procedure. Approach control then cleared them down to 5000 feet. The captain then remarked: "Hey did he say it was one five zero inbound?". It appears that at this moment the information received on the holding flashed back to the Captain's mind, making him realize that his manoeuvre was taking him to magnetic course 150 degrees outbound from 'FP', whereas the information received was "inbound" on the holding, heading 150 degrees towards 'FP'. The copilot responded: "Inbound yeh". "I don't like that", the captain said. The GPWS alarm sounded. The captain interrupted his left hand turn and entered a right hand turn and ordered an overshoot. They overflew a valley, temporarily deactivating the GPWS warning. The copilot suggested: "I suggest a heading of one two two actually and er take us through the overshoot, ah." But the captain continued with the turn to the right, because he was convinced that the turn he had been making to the left was taking him to the mountains. The captain contacted Approach Control at 13:21: "Er ... Dan Air one zero zero eight, we've had a ground proximity Warning." About two seconds later the aircraft flew into the side of a mountain at an altitude of approximately 5450 ft (1662 m) and at 11.5 km off course.

Transbrasil

On approach to Florianópolis-Hercílio Luz Airport, the crew encountered poor weather conditions with thunderstorm activity and heavy rain falls. The approach was abandoned and the captain initiated a go-around. Few minutes later, while completing a second attempt to land, the crew failed to realize that the airplane was not properly aligned. At a higher speed than prescribed, the airplane struck the top of a hill and crashed in flames about 26 km from the airport. Three passengers were rescued while 55 other occupants were killed. At the time of the accident, the airplane was approaching the airport below the glideslope and off course. It appears that an inspector pilot was at control at the time of the accident.

Iran Air

On the day of the accident, Iranian air traffic controllers went on strike, which led to hundreds of domestic flights being cancelled. At 1600LT the strike was interrupted and flights resumed. At 1740LT, the airplane departed Mashad Airport on schedule service IR291 to Tehran-Mehrabad Airport with 120 passengers and a crew of eight on board. At 1852LT, ATC based at Tehran-Mehrabad Airport cleared the crew for a direct approach to runway 29. At 1905LT, the dispatcher instructed the crew to take a 360° heading to reach the non-directional beacon of Varamin. On approach, the copilot informed the captain that the VORTAC was giving a wrong radial course but the captain failed to respond to this message. At 1911LT, while descending in limited visibility due to night, snow falls and foggy conditions, the airplane struck the slope of a mountain located in the Alborz Mountain Range. The wreckage was found few hours later in a snow covered terrain about 29 km north of Tehran Airport. The aircraft disintegrated on impact and none of the 128 occupants survived the crash.

American Airlines

American Airlines Flight 625 was a scheduled flight from Providence Airport (PVD) to St.Thomas (STT) on the U.S Virgin Islands with an intermediate stop in New York (JFK). The Boeing 727 departed New York at 12:00 AST. On approach to St. Thomas, at 15:04, the flight crew cancelled their IFR flight plan and proceeded VFR. The captain elected to use the runway 09 ILS for vertical guidance. The glide slope was intercepted at 1500 feet msl (flaps 15° and at a 160 KIAS airspeed). The flaps were lowered to 25 and later to 30 degrees. The company prescribed 40 degrees was never selected. The speed was still 10 KIAS above Vref when the aircraft passed the threshold at an estimated altitude of 30-40 feet. At 1000 feet down the runway, while initiating the flare, turbulence caused the right wing to drop. The wings were leveled and the aircraft floated a while until touchdown 2200-2300 feet down the runway. The captain decided that the aircraft couldn't be stopped on the remaining runway. He immediately initiated a go-around. Because of the absence of any sensation either of power being applied or of aircraft acceleration, the throttles were closed again. The aircraft, in a 11 degree nose up attitude, ran off the runway and struck a localizer antenna. The right wingtip clipped a hillside just south of the antenna and the aircraft continued, hit an embankment, became airborne and contacted the ground on the opposite side of the perimeter road. The aircraft continued and came to rest 83 feet past the perimeter road, bursting into flames.

Alaska Airlines

About 0738LT on April 5, 1976, Alaska Airlines, Inc., Flight 60, a B-727-81, N124AS, departed Juneau, Alaska, on a regularly scheduled passenger flight to Seattle, Washington; an en route stop was scheduled for Ketchikan International Airport, Ketchikan, Alaska. There were 43 passengers and a crew of 7 on board. Anchorage air route traffic control center (ARTCC) cleared Flight 60 on an instrument flight rules (IFR) flight plan to the Ketchikan International Airport; the flight was routine en route. At 0805, Anchorage ARTCC cleared Flight 60 for an approach to runway 11 at Ketchikan. At 0807, the flight was 30 DME miles from the airport. At 0811, Flight 60 reported out of 10,000 feet and was cleared to contact Ketchikan Flight Service Station (FSS); the FSS advised the flight that the 0805 weather was: ceiling 800 ft., obscured, visibility 2 mi, light snow, fog, wind 330° at 5 kt. The FSS also advised the flight that braking action on runway 11 was poor; this report was based on braking tests performed by the airport manager. The captain testified that he did not recall hearing the braking condition report. Upon receipt of the clearance, the crew of Flight 60 began an ILS approach to Ketchikan. Near the 17-mile DME fix, as the flight descended through 4,000 feet, the crew acquired visual contact with the ground and water. As the flight approached Guard Island, the captain had the Island in sight and decided to abandon the ILS approach and to continue the approach visually. The captain testified that he established a 'visual glide slope of my own' at an altitude of about 1,000 feet, and stated that his eyes were '... the most reliable thing I have.' Visual contact with the approach lights was established about 2 miles from the runway threshold. The airport was visible shortly thereafter. The captain did not recall the airspeed at touchdown, but estimated that he touched down about 1,500 feet past the threshold of runway 11. He also testified that he did not see the yellow, 1,000-foot markers on the runway; he further testified that the runway '... was just wet.' A passenger on Flight 60, who was seated in seat 5A (just forward of the wing's leading edge), stated that the yellow runway marks were visible to him. The first officer has no recollection of the sequence of events leading to the accident; however, the second officer testified that airspeeds and descent rates were called out during the last 1,000 feet. The captain could not recall the flap setting either on approach or at touchdown. However, the second officer testified that after the landing gear was extended the first officer remarked, 'We're high,' and lowered the flaps from 30° to 40°. None of the cockpit crew remembered the airspeeds, descent rates, or altitudes of the aircraft during the approach and touchdown. Reference speed was calculated to be 117 kns with 40° flaps and 121 kns with 30° flaps. The captain testified that after touchdown he deployed the ground spoilers, reversed the engines, and applied the wheel brakes. Upon discovering that the braking action was poor, he decided to execute a go-around. He retracted the ground spoilers, called for 25° flaps, and attempted to obtain takeoff thrust. The thrust reverser mechanism did not disengage fully and the forward thrust could not be obtained. He then applied full reversing and quickly moved the thrust levers to 'idle.' This attempt to obtain forward thrust also was not successful. The captain then reapplied reverse thrust and again deployed the ground spoilers in an attempt to slow the aircraft. When he realized that the aircraft could not be stopped on the runway, he turned the aircraft to the right, raised the nose, and passed over a gully and a service road beyond the departure end of the runway. The aircraft came to rest in a ravine, 700 feet past the departure end of runway 11 and 125 feet to the right of the runway centerline. Flight attendants reported nothing unusual about the approach and touchdown, except for the relatively short time between the illumination of the no-smoking sign and the touchdown. The two flight attendants assigned to the rear jumpseats and the attendant assigned to the forward jumpseat did not have sufficient time to reach their assigned seats and had to sit in passenger seats. None of the flight attendants felt the aircraft decelerate or heard normal reverse thrust. Many passengers anticipated the accident because of the high speed of the aircraft after touchdown and the lack of deceleration. Two ground witnesses, who are also pilots, saw the aircraft when it was at an altitude of 500 to 700 feet and in level flight. The witnesses were located about 7,000 feet northwest of the threshold of runway 11. They stated that the landing gear was up and that the aircraft seemed to be 'fast' for that portion of the approach. When the aircraft disappeared behind an obstruction, these witnesses moved to another location to continue watching the aircraft. They saw the nose gear in transit and stated that it appeared to be completely down as the aircraft crossed over the first two approach lights. The first two approach lights are located about 3,000 feet from the runway threshold. A witness, who was located on the fifth floor of the airport terminal, saw the aircraft when it was about 25 feet over the runway. The witness stated that the aircraft was in a level attitude, but that it appeared 'very fast.' He stated that the aircraft touched down about one-quarter way down the runway, that it bounced slightly, and that it landed again on the nose gear only. It then began a porpoising motion which continued until the aircraft was past midfield. Most witnesses placed the touchdown between one-quarter and one-half way down the runway and reported that the aircraft seemed faster-than-normal during the landing roll. Witnesses reported varying degrees of reverse thrust, but most reported only a short burst of reverse thrust as the aircraft passed the airport terminal, about 3,800 feet past the threshold of runway 11.

Avianca

On approach to Barranquilla-Soledad Airport, the crew encountered poor visibility due to foggy conditions. Unable to locate the runway in below weather minima, the captain decided to make a go-around. Few minutes later, while on a second attempt to land, the crew failed to realize his altitude was too low when the airplane struck tree tops 1,000 meters short of runway 04 threshold. The aircraft lost height and crashed in flames 300 meters short of runway. The aircraft was totally destroyed and all four occupants have been killed.

Air Vietnam

En route from Ðà N<U+1EB5>ng to Saigon, while cruising at an altitude of 26,000 feet, three guys entered the cockpit and ordered the pilot to divert to Hanoi. The captain tried to explain that this was not possible and that he should perform an intermediate stop at Phan Rang Airport. Shortly later, two hand grenades exploded in the front part of the cabin, causing major damages to the aircraft control systems. While approaching Phan Rang Airport, at a height of 1,000 feet, the airplane entered a nose-down attitude then crashed in a huge explosion in a rice paddy field located few km from the runway threshold. The aircraft disintegrated on impact and all 75 occupants were killed.

Mexicana de Aviación

Following an uneventful flight from Denver-Stapleton Airport, the crew started the descent to Mazatlán-General Rafael Buelna Airport. On short final, the airplane struck the ground, lost its undercarriage and came to rest about 1,500 meters short of runway threshold. All 123 occupants were evacuated safely while the aircraft was damaged beyond repair.

Alaska Airlines

Alaska Airlines, Flight 1866 (AS66) was a scheduled passenger flight from Anchorage (ANC), to Seattle (SEA), with intermediate stops at Cordova (CDV), Yakutat (YAK), Juneau (JNU), and Sitka (SIT). The IFR flight departed Anchorage at 09:13 and landed at Cordova at 09:42. AS66 departed Cordova at 10:34 after a delay, part of which was attributable to difficulty in securing a cargo compartment door. The flight landed at Yakutat at 11:07. While on the ground, AS66 received an air traffic control clearance to the Juneau Airport via Jet Route 507 to the Pleasant Intersection, direct to Juneau, to maintain 9,000 feet or below until 15 miles southeast of Yakutat on course, then to climb to and maintain FL230. The flight departed Yakutat at 11:35, with 104 passengers and seven crew members on board. At 11:46, AS66 contacted the Anchorage ARTCC and reported level at FL230, 65 miles east of Yakutat. The flight was then cleared to descend at the pilot's discretion to maintain 10,000 ft so as to cross the Pleasant Intersection at 10,000 feet and was issued a clearance limit to the Howard Intersection. The clearance was acknowledged correctly by the captain and the controller provided the Juneau altimeter setting of 29.46 inches and requested AS66 to report leaving 11,000 ft. At 11:51, AS66 reported leaving FL230. Following this report, the flight's clearance limit was changed to the Pleasant Intersection. At 11:54, the controller instructed AS66 to maintain 12,000 feet. Approximately 1 minute later, the flight reported level at 12,000 feet. The changes to the flight's original clearance to the Howard Intersection were explained to AS66 by the controller as follows: "I've got an airplane that's not following his clearance, I've got to find out where he is." The controller was referring to N799Y, a Piper Apache which had departed Juneau at 11:44 on an IFR clearance, destination Whitehorse, Canada. On two separate occasions, AS66 acted as communications relay between the controller and N799Y. At 11:58, AS66 reported that they were at the Pleasant Intersection, entering the holding pattern, whereupon the controller recleared the flight to Howard Intersection via the Juneau localizer. In response to the controller's query as to whether the flight was "on top" at 12,000 feet, the captain stated that the flight was "on instruments." At 12:00, the controller repeated the flight's clearance to hold at Howard Intersection and issued an expected approach time of 12:10. At 12:01, AS66 reported that they were at Howard, holding 12,000 feet. Six minutes later, AS66 was queried with respect to the flight's direction of holding and its position in the holding pattern. When the controller was advised that the flight had just completed its inbound turn and was on the localizer, inbound to Howard, he cleared AS66 for a straight-in LDA approach, to cross Howard at or below 9,000 feet inbound. The captain acknowledged the clearance and reported leaving 12,000 feet. At 12:08 the captain reported "leaving five thousand five ... four thousand five hundred," whereupon the controller instructed AS66 to contact Juneau Tower. Contact with the tower was established shortly thereafter when the captain reported, "Alaska sixty-six Barlow inbound." (Barlow Intersection is located about 10 nautical miles west of the Juneau Airport). The Juneau Tower Controller responded, "Alaska 66, understand, ah, I didn't, ah, copy the intersection, landing runway 08, the wind 080° at 22 occasional gusts to 28, the altimeter now 29.47, time is 09 1/2, call us by Barlow". No further communication was heard from the flight. The Boeing 727 impacted the easterly slope of a canyon in the Chilkat Range of the Tongass National Forest at the 2475-foot level. The aircraft disintegrated on impact. The accident was no survivable.

Mexicana de Aviación

On final approach to runway 23L at Mexico City-Benito Juárez Airport, the three engine airplane lost height and struck the ground about 1,5 km short of runway threshold. It bounced and became airborne again when the nose gear and the forward fuselage struck a railway embankment. Out of control, the airplane crashed and broke into several pieces near the runway threshold. 80 people were wounded while 15 others were uninjured. Five crew members and 22 passengers were killed. The aircraft was destroyed.

Mexicana de Aviación

Following an uneventful flight from Mexico City, the crew started the descent to Monterrey-General Mariano Escobido Airport. In a visibility reduced by heavy rain falls, the crew initiated a turn to the left to intercept the glide. After passing over the Monterrey VOR, the aircraft descended with a rate of 1,500 feet per minute when, at a speed of 250 knots, it struck the slope of Cerro del Fraile located some 23 km from the airport. The aircraft disintegrated on impact and all 79 occupants were killed. The wreckage was found at an altitude of 1,800 meters few hours later.

LAN Chile - Linea Aérea Nacional de Chile

Flight 160 was a scheduled international flight from Buenos Aires, Argentina to Santiago, Chile. The aircraft took off at 2356 hours GMT from Ezeiza Airport, with an IFR flight plan for airways AJG 82 and UG-14, and left the Buenos Aires terminal area via the Mariana intersection, its route taking it over Junín, Villa Reynolds, El Pencal, Mendoza, Juncal and Tabón. The flight level was 310 (31 000 ft). Before flying over Juncal, the aircraft was cleared by the Mendoza Control Centre to descend and maintain flight level 260 (26 000 ft) and after passing Juncal, it was cleared by the Santiago Control Centre to descend and maintain level 250 (25 000 ft) and to pass the Tab6n NDB at flight level 150. It was also given the Santiago weather report, announcing 4/8 nimbostratus at 450 m and 8/8 altostratus at 2 400 m. At 0135 hours, the aircraft passed over Juncal at flight level 260 and then left this level for FL 150; it gave 0142 hours at its estimated time of passage over Tabón NDB and subsequently reported that it was passing through FL 180 (18 000 ft). At 0141 hours, the aircraft passed Tabón NDB and left FL 150 for FL 70 (7 000 ft) and gave 0142 hours as its estimated time of arrival over Colina NDB. Prior to that, Santiago Centre had cleared the aircraft to FL 70 at the Pudahuel Airport ILS outer marker. The aircraft subsequently reported to the Control Centre that it was passing through FL 70; the Centre acknowledged receipt of the message and cleared the flight to make an ILS approach and to change to frequency 118.1 for communication with the Pudahuel Control Tower. The aircraft passed over Colina NDB at about 5 500 ft and continued to descend intercepting the ILS (glide slope) beam at about 4 500 ft, one min 20 sec after passing FL 70. It continued its descent at a rate of about 1 500/2 000 ft/min and descended below the minimum height of 2 829 ft at the outer marker without either the pilot or the co-pilot noting this and on apparently correct indications from the Flight Director. The aircraft continued descending and passed below the minimum height of 1 749 ft published for Pudahuel Airport when suddenly the warning light on the radio altimeter lit up. At this very moment the aircraft levelled off, but its wheels touched the ground and it landed in a field 2 kms north of the ILS outer marker, suffering heavy damage, but without serious injuries to passengers or crew. The accident occurred at 0144 GMT on 28 April, 2144LT on 27 April.

United Airlines

Boeing 727-22C N7434U operated Flight 266 from Los Angeles to Denver, CO and Milwaukee, WI. The aircraft had been operating since January 15, 1969, with the No. 3 generator inoperative. This was allowed because according to the Minimum Equipment List, the aircraft is airworthy with only two generators operable provided certain procedures are followed and electrical loads are monitored during flight. Flight 266 was scheduled to depart the gate at 17:55, but was delayed until 18:07 because of the inclement weather and loading problems. The flight commenced its takeoff roll on runway 24 at approximately 18:17. At 18:18:30 the sound of an engine fire warning bell was heard in the cockpit. The crew reported a no. 1 engine fire warning and stated that they wanted to return to the airport. Shortly after shutdown of the No. 1 engine, electrical power from the remaining generator (No. 2) was lost. Following loss of all generator power, the standby electrical system either was not activated or failed to function. Electrical power at a voltage level of approximately 50 volts was restored approximately a minute and a half after loss of the No. 2 generator. The duration of this power restoration was just 9 to 15 seconds. The Boeing descended and struck the sea 11.3 miles west of the airport. The ocean depth at this point is approximately 950 feet.

Ariana Afghan Airlines

The accident occurred on a scheduled passenger flight from Frankfurt when the aircraft was making an ILS approach for a night landing on Runway 27 at Gatwick Airport. The weather was clear except that freezing fog persisted in places including the Gatwick area. The runway visual range (RVR) at Gatwick was 100 metres. The approach was commenced with the autopilot coupled to the instrument landing system (ILS) but after the glide-slope had been captured the commander who was at the controls, disconnected the autopilot because the "stabiliser out of trim" warning light illuminated. At the outer marker the flap setting was changed from 1° to 30° and shortly afterwards the rate of descent increased and the aircraft descended below the glide-slope. Some 200 feet from the ground the pilot realised that the aircraft was too low and initiated a missed approach procedure. The aircraft began to respond but the descent was not arrested in time to avoid a collision with trees and a house that destroyed both the aircraft and the house and set the wreckage on fire. 48 occupants as well as two people in the house were killed. 14 others were injured. The aircraft was totally destroyed by impact forces and a post crash fire.

United Airlines

The takeoff warning horn sounded shortly after commencing takeoff from runway 09R. The takeoff was continued as the crew tried to figure out what caused the warning. The horn ceased prior to reaching rotate speed. The stick shaker came on and thrust was added, but the aircraft failed to climb and the captain elected to discontinue the takeoff. The 727 settled back to the macadam shoulder off the right side of the runway and struck a ditch, coming to rest 1,100 feet beyond the runway end and 300 feet right of the extended centreline. The aircraft was destroyed by a post crash fire and all three crew members were injured. The flaps had been set at 2° instead of takeoff range of 5°-25°.

Civil Air Transport

Flight No. 10 operated by Civil Air Transport was a scheduled international flight from Taipei to Hong Kong and return. The accident occurred on the return trip from Hong Kong to Taipei. The aircraft departed Hong Kong at 2018 hours local time. At 2045 hours it reported to Taipei Area Control Centre over Yellowtail, a compulsory reporting intersection, at flight level 29 000 ft. At 2059 hours it reported over Makung VOR, and was then cleared to descend to 11 000 ft. At 2111 hours it reported over Hsinchu (PO) NDB at 11 000 ft and was cleared to descend to 5 000 ft crossing Taoyuan (GM) NDB and to 2 000 ft crossing Linkuo outer marker for a straight-in ILS approach to runway 10. The current Taipei weather information was also given to the pilot at that time. At 2118 hours the aircraft reported approaching Linkuo outer marker at 2 000 ft and was cleared to continue its ILS approach and to contact Taipei Tower. The aircraft reported to Taipei Tower and requested landing instructions. The tower controller advised the pilot to continue his ILS approach to runway 10, gave him the surface wind and the altimeter setting and requested him to report approach lights in sight. The pilot acknowledged all this information. From that moment, even though repeated attempts to contact the aircraft were made by Taipei Tower and Taipei Area Control Centre, no further communication was received from the aircraft. Then, right after, Taipei Area Control Centre was informed that the aircraft had crashed in the vicinity of Linkou, about 8 miles west of Taipei City. Three crew members, 18 passengers and one person on the ground were killed. The aircraft was destroyed. It was found during the investigation that the left hand pilot seat was not occupied by the assigned pilot-in-command, but by another Senior Pilot of Civil Air Transport.

Piedmont Airlines

The three engine aircraft departed Asheville Regional Airport at 1158LT and climbed to its assigned altitude. About three minutes later, while climbing to an altitude of 6,132 feet in a limited visibility due to clouds, the aircraft collided with a Cessna 310 registered N3121S. Operated by Lanseair, it was carrying two passengers and a pilot. Following the collision, both aircraft dove into the ground and crashed in a dense wooded area located about nine miles southeast of Asheville Airport. The wreckage of the 727 was found in a forest along a highway located in Hendersonville. All 82 occupants in both aircraft were killed.

Pan American World Airways - PAA

Pan Am's scheduled cargo flight 708 from Frankfurt to Berlin usually lands at Tempelhof Airport. However because of resurfacing of the runways at Tempelhof, Pan Am operated in and out of Tegel Airport since the evening of November 13th. Flight 708 departed Frankfurt at 02:04 and climbed to the cruising altitude of FL90. At 02:35 the flight reported leaving this altitude for FL30. Three minutes later Berlin Control cleared the flight to "turn left heading zero three zero, descend and maintain two thousand". When 6,5 miles from the Outer Marker, the controller cleared the flight to "turn right heading zero six zero cleared ILS runway eight right approach". Immediately after the acknowledgment from the flight crew, the aircraft struck the ground and crashed about 10 miles from the airport in the Soviet occupation zone. Weather was poor with 2,6 km visibility in snow; cloud coverage 3/8 at 500 feet and overcast a 600 feet with a temperature of -1deg C. The Soviet authorities returned about 50 percent of the wreckage. Some major components were not returned which included the flight data and cockpit voice recorders, flight control systems, navigation and communication equipment.

All Nippon Airways

While approaching Tokyo-Haneda Airport by night and in good weather conditions, at an altitude of about 2,000 feet, the three engine aircraft went out of control and crashed into the Tokyo Bay, about 12 km southeast of the airport. Lots of debris were quickly recovered as well as the tail that sank by a depth of 20 meters. The aircraft disintegrated on impact and none of the 133 occupants survived the crash, which was the worst in Aviation History to date. At the time of the accident, the crew was approaching the airport under VFR mode in good weather conditions and did not report any issues on the frequency.

United Airlines

Flight 227 took off from New York-LaGuardia (LGA) for a flight to San Francisco (SFO) via Cleveland (CLE), Chicago (MDW), Denver (DEN) and Salt Lake City (SLC). The aircraft took off from Denver at 16:54 and climbed to its assigned cruising altitude of FL310. At 17:38 flight 227 began its descent for Salt Lake City. The flight proceeded in accordance with radar vectors. After a radar handoff to Salt Lake City Approach Control new clearance altitudes were given. At 17:47 the approach controller advised, "United seventy twenty seven ... five miles south of Riverton Fan Marker coming on localizer course cleared for ILS runway three four left approach." The pilot replied "Okay we're slowed to two fifty (Knots) and we're at ten (10,000 feet) we have the runway in sight now, we'll cancel and standby with you for traffic." Control of the flight was transferred to the tower and at 17:49:40 landing clearance was issued. The aircraft crossed the outer marker over 2,000 fee & above the ILS glide slope. The rate of descent during the final approach exceeded 2,000 ft/min, approximately three times the United Air Lines recommended rate of descent for landing approaches. The first officer attempted to apply power but the captain stopped him. Power was then applied too late to arrest the rate of descent. The airplane touched down 335 feet short of the threshold of runway 34L. The right and left main landing gear began to separate and the airplane slid onto the runway. Severe upward and rearward impact forces from the right main Landing gear assembly produced a large impact hole and ruptured fuel lines and the no. 3 generator leads between fuselage station 1030 and 1130 on the right side. The fuel was ignited by sparks from the fuselage scraping on the runway and/or the severed generator leads. 13 passengers were uninjured while 35 people were wounded. 43 other occupants were killed.

American Airlines

American Airlines Flight 383, a Boeing 727, N1996, departed New York-LaGuardia Airport (LGA) at 17:38 for a scheduled flight to the Greater Cincinnati Airport (CVG). It was to be an IFR flight with a requested cruising altitude of 35,000 ft and an estimated time en route of 1 hour 23 minutes. The en route part of the flight was uneventful. About 18:55, when the flight was about 27 miles southeast of the Greater Cincinnati Airport, radar traffic control was effected by Cincinnati Approach Control. Subsequent descent clearances were issued to the flight and at 18:57 flight 383 reported: "...out of five for four and how about a control VFR, we have the airport." The Approach Controller replied: "... continue to the airport and cleared for a visual approach to runway one eight, precip lying just to the west boundary of the airport and its ... southbound." The crew acknowledged the clearance and the controller cleared the flight to descend to 2,000 feet at their discretion. At 18:58 Approach Control advised the flight that its radar position was six miles southeast of the airport and instructed them to change to the Cincinnati tower frequency. One minute later the tower controller cleared the flight to land. During the approach the visibility at the airport deteriorated as it began to rain. The tower controller reported: "American three eighty three we are beginning to pickup a little rain right now." At 19:01:14 the tower asked: "American three eighty three you still got the runway Okay?" To which the crew replied "Ah just barely we'll ah pickup the ILS here". At this point, thirteen seconds before impact, the 727 was descending at a rate of 2100 feet/min to an altitude of approximately 725 feet (165 ft below published field elevation) with the airspeed holding at 160 knots. The descent rate then decreased to about 625 ft/min for approximately the last 10 seconds of flight with the airspeed decreasing to 147 knots at impact. The right wing struck a tree at an altitude of 665 feet msl which is approximately 225 feet below the published field elevation. The aircraft slid a distance of 340 feet relatively intact through scrub trees and ground foilage before impacting and coming to rest amidst a group of larger trees. Following impact an intense ground fire erupted which completely destroyed the aircraft cabin forward of the tail section. A stewardess and three passengers survived while 58 other occupants were killed.

United Airlines

A United Air Lines, Inc., Boeing 727-22, N7036U, Flight 389 (UAL 389) was a regularly scheduled domestic passenger/cargo flight from LaGuardia Airport, New York to O'Hare International Airport, Chicago, Illinois. The aircraft had arrived at LaGuardia, on the date of the accident, following a trip from Los Angeles, California, with stops at Sacramento, California, Reno, Nevada, Denver, Colorado, and Chicago, Illinois. The flight crew of UAL 389 reported for duty at LaGuardia Airport one hour before scheduled departure where they prepared for the flight to Chicago. The stewardesses arrived with the aircraft from Chicago. Persons known to have been in contact with the crew prior to their departure from New York noticed nothing unusual about their behavior or appearance. UAL 389 departed LaGuardia at 1952 on an Instrument Flight Rules (IFR) flight plan at FL 350 and estimated their arrival time at O'Hare to be 2127. The crew reported at FL 350 at 2011.35. At 2102 UAL 389 came under control of the Chicago Air Route Traffic Control Center (ARTCC) reporting its altitude as FL 350 and was cleared to the O'Hare Airport via Pullman VORTAC direct to the Northbrook VORTAC, direct O'Hare and to maintain FL 350. This clearance was acknowledged correctly and the crew was advised that radar contact had been established. At 2103 the ARTCC controller cleared UAL 389 to descend to FL 240 and to "start descent now through 31" (FL 310). UAL 389 replied "...down to 240, leaving three five." At 2106 UAL 389 was cleared to continue its descent to 14,000 feet and given an altimeter setting of 29.90 inches for O'Hare. This message was acknowledged immediately and in reply to the controller's inquiry the crew reported they were leaving FL 280 "now." At 2109 the flight was instructed to change frequencies and within the same minute reported out of FL 260 descending to fourteen thousand. This was the last altitude information received from the crew. At 2111 the flight was cleared to descend to 6,000 feet and the clearance was immediately acknowledged correctly. At 2118:35 control of the flight was passed to Chicago Approach Control (ORD). The radar target of UAL 389 was in the vicinity of the Sturgeon Intersection (intersection of the 011 radial of Chicago Heights and 076 radial of Northbrook VORTAC, 28 miles east of Northbrook VORTAC). At 2118:38 the target was observed approximately 2 miles east of the intersection. At 2119:36 the crew contacted ORD and was advised that radar contact had been established. At this time the aircraft target was 2-3 miles west of Sturgeon. UAL 389 was cleared to maintain 6,000 feet and to depart the Northbrook VORTAC on a heading of 240 degrees. The flight was advised that instrument landing system approaches were in progress on runway 14R at O'Hare and that the current O'Hare altimeter setting was 29.93. The pilot read back the altimeter setting incorrectly, the controller corrected him, and the pilot repeated it correctly. This was the last communication received from the flight and ended at 2120:03. The airplane crashed into Lake Michigan and exploded upon impact. All 30 occupants were killed.