Beechcraft 1900C

Aeropanamericano

The accident flight was a repositioning flight being operated by two airline transport pilots, and it was the multiengine turboprop airplane's first flight after an aviation maintenance technician (AMT) had replaced the left engine propeller with an overhauled propeller. The AMT subsequently performed an engine run, which included verifying correct power settings and corresponding blade angles. A review of flight data recorder (FDR) data revealed that, about 2 seconds after rotation, the left engine propeller rpm decreased to 60 percent, and the left engine torque increased off-scale (beyond 5,000 ft lbs), which is consistent with the left propeller traveling to the feathered position and the engine torque increasing in an attempt to maintain propeller rpm. About 30 seconds later, the flight crew shut down the left engine and attempted to return to the departure airport. Postaccident examination of the rudder trim actuator revealed that the rudder trim was at its full-right limit, which would have occurred to counteract the left engine drag before its shutdown. Based on this evidence, it is likely that the flight crew did not readjust the trim when the drag was alleviated, which resulted in the airplane being operated in a crosscontrolled attitude for about 50 seconds with a left bank and full-right rudder trim. Although the airplane should have been able to climb about 500 ft per minute with one engine operating, it slowed and descended from 300 ft in the cross-controlled attitude until it stalled, as indicated by a stall warning recorded by the cockpit voice recorder, and subsequently impacted terrain. Examination of the wreckage, including teardown examination of the left engine and propeller, did not reveal any preimpact mechanical anomalies. Review of the airplane maintenance manual revealed instructions to check the propeller reversing linkage on the front end of the engine, which controlled the beta valve, for proper rigging during propeller installation. The manual also contained a warning that misadjustment of the beta valve can cause unplanned feathering of the propeller and result in a possible hazard to airplane operation and over torque damage to the engine; however, the beta valve rigging could not be verified postaccident due to impact damage. Additionally, the ground/flight idle solenoid energizes when weight becomes off wheels and further opens the beta valve, which could exacerbate an existing misrigged condition as soon as the airplane becomes airborne, which is when the airplane experienced the uncommanded propeller feathering. The FDR data were consistent with the flight crew not performing the Before Takeoff (Runup) checklist. One of the items on that checklist was a low-pitch solenoid test, which would have energized the solenoid and possibly driven the left propeller uncommanded to feather during ground operations rather than in flight. A similar test during the post maintenance engine-run would have had the same results.

Sahel Aviation Service

The aircraft was planned to fly from Lanseria airport (FALA) in Republic of South Africa to Bamako airport (GABS) in Mali with a stopover in Ondangwa airport (FYOA) in Namibia, São Tomé International airport (FPST) in São Tomé and Príncipe and Accra airport (DGAA) in Ghana, with a rough estimating time of approximately 15hrs flying, not including the ground time at airports of stopover. The aircraft had been in Lanseria airport (FALA) in Republic of South Africa (RSA) for maintenance check (including but not limited to engine work and interior refurbishing). Prior to the planned flight, the aircraft underwent flight check for 45 minutes after completed planned maintenance on Saturday, April 6th, flown by the Captain and another SAS company pilot. The aircraft departed FALA to FYOA for its first stop over whose flight time was 03:35h. The planned departure from FYOA was delayed due to trouble in starting the right engine. The aircraft took off at 1021hrs contrary to planned 0830hrs. For the second leg of the flight, the aircraft departed FYOA to FPST with filed flight plan of 05 hours and 20 minutes (flight time) having FYOA as alternate. Leaving the Namibian airspace the pilot only contacted Luanda ATC and São Tomé Tower as destination, and at no time did he contact Brazzaville or Libreville for any further clearance within Brazzaville FIR: It is important to emphasize that on that day, the west coast of Africa in the vicinity of Gulf of Guinea had widespread moderate to severe thunderstorm activity with lighting and heavy rain. When initiating descent to São Tomé from FL 200 to 4000 feet as instructed by São Tomé ATC, the pilot was advised that weather was gradually deteriorating at airport vicinity. At 1610hrs the pilot had last transmission with Control Tower informing them about his position which was 9 nm inbound to São Tomé VOR at 4000 feet and also informed the ATC that he was encountering heavy rain. Having lost contact with aircraft at 1613hrs, the São Tomé ATC tried several times to contact the airplane by VHF118.9, 127.5, 121.5 and HF 8903 without success. Facing this situation the ATC sent messages to FIRs of Brazzaville and Accra and Libreville Control as well, some airlines flying within São Tomean an adjacent airspace were contacted for any information but all responses were negative. A Search and Rescue operation started on 7 April 2013 the same day the accident occurred and was conducted on the sea and on the island; no trace of aircraft or its debris, pilot or any cargo were found. The search was terminated on 20 April at 1730hrs.

ACE Air Cargo

Aircraft was destroyed when it impacted rising terrain about 10 miles east of Aleknagik, Alaska. The airplane was operated as Flight 51, by Alaska Central Express, Inc., Anchorage, Alaska, as an on demand cargo flight under the provisions of 14 Code of Federal Regulations (CFR) Part 135. The airline transport certificated captain and the commercial certificated first officer sustained fatal injuries. Instrument meteorological conditions were reported in the area at the time of the accident, and the airplane was operating on an instrument flight rules (IFR) flight plan. The flight had originally departed Anchorage about 0544, and made a scheduled stop at King Salmon, Alaska, before continuing on to the next scheduled stop, Dillingham, Alaska. According to Federal Aviation Administration (FAA) personnel, as the airplane approached Dillingham, the flight crew requested the RNAV GPS 19 instrument approach to the Dillingham Airport about 0757 from controllers at the Anchorage Air Route Traffic Control Center (ARTCC). The ARTCC specialist on duty subsequently granted the request by issuing the clearance, with instructions to proceed direct to the Initial Approach Fix (IAF) to begin the approach, and to maintain an altitude of 2,000 feet or above. A short time later the flight crew requested to enter a holding pattern at the IAF so that they could contact the Flight Service Station (FSS) for a runway conditions report, and the ARTCC specialist granted that request. The ARTCC specialist then made several attempts to contact the aircraft, but was unsuccessful and subsequently lost radar track on the aircraft. When the airplane failed to arrive at the Dillingham Airport, ARTCC personnel initiated a radio search to see if the airplane had diverted to another airport. Unable to locate the airplane, the FAA issued an alert notice (ALNOT) at 0835. Search personnel from the Alaska State Troopers, Alaska Air National Guard, and the U.S. Coast Guard, along with several volunteer pilots, were dispatched to conduct an extensive search effort. Rescue personnel aboard an Air National Guard C-130 airplane tracked 406 MHz emergency locater transmitter (ELT) signal to an area of mountainous terrain about 20 miles north of Dillingham, but poor weather prohibited searchers from reaching the site until the next morning. Once the crew of a HH-60G helicopter from the Air National Guard's 210th Air Rescue Squadron, Anchorage, Alaska, reached the steep, snow and ice-covered site, they confirmed that both pilots sustained fatal injuries.

Bolivian Air Force - Fuerza Aérea Boliviana

The twin engine aircraft departed Uyuni-La Joya Andina Airport on a flight to La Paz, carrying four passengers and three crew members. On approach to El Alto Airport, the crew encountered an unexpected situation. The captain decided to attempt an emergency landing in an open field. Upon touchdown, the undercarriage were torn off and the aircraft slid for few dozen metres before coming to rest 6 km from the airport. All seven occupants escaped uninjured while the aircraft was damaged beyond repair.

Kaya Airlines

The flight from Nampula was uneventful until the approach to Maputo. Due to bad weather conditions at destination, the crew was vectored to a holding pattern. After two circuits, the captain decided to start the descent despite ATC informed him about very poor conditions. At this time, the visibility was reduced due to the night, heavy rain falls, thunderstorm activity with turbulences and lightnings. On final approach to runway 23, the aircraft was too low and impacted ground short of runway in a slight nose-up attitude. Upon impact, the aircraft broke in two and came to rest in a field. All 17 occupants escaped with minor injuries and the aircraft was destroyed.

JS Air

0C-1 aircraft Reg # AP-BJD was scheduled to fly chartered flight from Jinnah International Airport (JIAP), Karachi to Bhit Shah Oil Fields to convey 17 employees of M/s Eni company including one foreign national from Italy. The flight crew included two cockpit crew ie Captain and First Officer (FO), one JS (Air) ground crew (technician) and one Airport Security Force staff. The Mishap Aircraft (MA) took off from JIAP, Karachi at 02:04:31 UTC. The reported weather was fit for the conduct of ill-fated flight to Bhit Shah Oil Fields. After takeoff aircraft experienced Engine No 2 abnormal operation and cockpit crew decided to land back at JIAP Karachi after calling right hand downwind for runway 25R. While joining for right hand downwind for 25R the mishap aircraft could not sustain flight and crashed at a distance of around 1 nm from runway 07R beginning JIAP, Karachi. All souls (21) onboard got fatally injured as a result of aircraft ground impact and extensive post impact ground fire.

ACE Air Cargo

The crew departed on a commercial cargo flight during dark night, visual meteorological conditions on an instrument flight rules flight plan. The departure end of the runway is adjacent to an ocean bay, and wind gusts up to 26 knots were reported. Local residents north of the airport reported stronger wind, estimated between 50 and 60 knots. A fuel truck operator, who was familiar with the crew’s normal routine, reported that, before the airplane taxied to the runway, it remained on the ramp for 6 or 8 minutes with both engines operating, which he described as very unusual. There were no reports of radio communications with the flight crew after the airplane departed. The airplane crashed about 1 mile offshore, and the fragmented wreckage sank in ocean water. Because of the fragmented nature of the wreckage and ocean current, the complete wreckage was not recovered. The cockpit area forward of the wings was extensively fragmented, thus the validity of any postaccident cockpit and instrument findings was unreliable. Likewise, structural damage to the airframe precluded determining flight control continuity. Both propellers had witness marks consistent with operating under engine power and within their normal operating range. A postaccident examination of the engines and recovered components did not disclose any evidence of a mechanical malfunction. Due to the lack of mechanical deficiencies of the engines and propellers, and the extensive airframe fragmentation consistent with a high-speed water impact, it is likely that the crew had an in-flight loss of control of an unknown origin before impact.

Air Serv International

The aircraft departed Kinshasa on a humanitarian flight to Goma with intermediate stops in Mbandaka, Kisangani and Bukavu. While approaching Bukavu-Kamembe Airport, the crew encountered poor visibility due to bad weather conditions. At an altitude of about 10,800 feet, the aircraft struck the slope of Mt Kahuzi located some 15 km northwest of Bukavu. The wreckage was found a day later in a wooded area. All 17 occupants were killed, among them emissaries.

Alpine Air

About one minute after takeoff on a night Instrument Flight Rules (IFR) contract cargo flight, the tower controller advised the pilot that he was squawking the wrong transponder code. Although the pilot reset the transponder to the correct code, he was advised that he was still squawking the wrong code. He then realized that he had selected the wrong transponder, and then switched to the correct one. During the time the pilot was dealing with this issue, the airplane drifted about 30 degrees right of the assigned heading, but the pilot returned to the correct heading as he was contacting the departure controller. The departure controller cleared him to continue his climb and instructed him to turn left about 120 degrees, which he did. About 40 seconds after initiating his left turn of about 120 degrees, while climbing straight ahead through an altitude about 4,700 feet above ground level (AGL), the pilot was instructed to turn 20 degrees further left. Almost immediately thereafter, the airplane began turning to the right, and then suddenly entered a rapidly descending right turn. The airplane ultimately impacted the terrain in a nearly wings-level nose-down attitude of greater than 45 degrees. At the moment of impact the airplane was on a heading about 220 degrees to the right of the its last stabilized course. The investigation did not find any indication of an airframe, control system, or engine mechanical failure or malfunction that would have precluded normal flight, and no autopsy or toxicological information could be acquired due to the high amount of energy that was released when the airplane impacted the terrain. The determination of the initiating event that led to the uncontrolled descent into the terrain was not able to be determined.

Flex Air

Chartered by Southern Sudan Air Connection to Flex Air Kenya, the aircraft departed Wau on a special flight to Juba with an intermediate stop in Rumbek, carrying a delegation of the South Sudan Government. While approaching Rumbek, the crew reported engine problems and elected to make an emergency landing when the aircraft crashed in a field located 45 km northwest from Rumbek, bursting into flames. All 21 occupants were killed, among them Justin Yak, personal adviser of the President of South Sudan, Dominic Dim Deng, Ministry of Defense, and 17 military officers.

Alpine Air

The pilot was flying a night, single-pilot, cargo flight over water between two islands. He had routine contact with air traffic control, and was advised by the controller to maintain 6,000 feet at 0501 hours when the airplane was 11 miles from the destination airport. Two minutes later the flight was cleared for a visual approach to follow a preceding Boeing 737 and advised to switch to the common traffic advisory frequency at the airport. The destination airport was equipped with an air traffic control tower but it was closed overnight. The accident flight's radar-derived flight path showed that the pilot altered his flight course to the west, most likely for spacing from the airplane ahead, and descended into the water as he began a turn back toward the airport. The majority of the wreckage sank in 4,800 feet of water and was not recovered, so examinations and testing could not be performed. As a result, the functionality of the altitude and attitude instruments in the cockpit could not be determined. A performance study showed, however, that the airspeed, pitch, rates of descent, and bank angles of the airplane during the approach were within expected normal ranges, and the pilot did not make any transmissions during the approach that indicated he was having any problems. In fact, another cargo flight crew that landed just prior to the accident airplane and an airport employee reported that the pilot transmitted that he was landing on the active runway, and was 7 miles from landing. Radar data showed that when the airplane was 6.5 miles from the airport, at the location of the last recorded radar return, the radar target's mode C altitude report showed an altitude of minus 100 feet mean sea level. The pilot most likely descended into the ocean because he became spatially disoriented. Although visual meteorological conditions prevailed, no natural horizon and few external visual references were available during the visual approach. This increased the importance of monitoring flight instruments to maintain awareness of the airplane attitude and altitude. The pilot's tasks during the approach, however, included maintaining visual separation from the airplane ahead and lining up with the destination runway. These tasks required visual attention outside the cockpit. These competing tasks probably created shifting visual frames of reference, left the pilot vulnerable to common visual and vestibular illusions, and reduced his awareness of the airplane's attitude, altitude and trajectory.

Southern Air Charter

The occurrence of this accident was notified to the Flight Standards Inspectorate by the Nassau Control Tower. On October 22, 2004 about 1328 eastern daylight time (1828Z) a Beechcraft 1900C, N79YV registered to JODA LLC of Chesterfield Missouri, and operated by Southern Air Charter Limited of Nassau, Bahamas, was ditched. The accident occurred in approximately four (4) feet of water, approximately 82 yards off the southern shoreline of New Providence Island (6.98 nautical miles southeast of the Nassau International Airport). The State of Manufacture of the airframe and engines (United States) was advised of the accident on that day and invited to participate in the investigation. The NTSB as well as the FAA were also notified and subsequently made party to the investigation, as the aircraft was a United States registered aircraft operating on an approved United States 129.14 maintenance program. Visual Meteorological Conditions prevailed at the time and an outbound visual flight plan was on file. N79YV operated as a schedule air commuter on a domestic transport flight. The flight originated from Arthur’s Town, Cat Island Bahamas enroute to Nassau International Airport, Nassau, Bahamas. The airplane sustained substantial damage. The occupants of the aircraft consisted of eight (8) passengers and a crew of two (2). The Pilot in Command held an Airline Transport Pilot rating and the First Officer held a Commercial Pilot rating. Both crews were certificated by the Federal Aviation Administration, (FAA). No serious injuries or fatalities were reported.

United States Air Force - USAF

The Air Force Materiel Command Beech 1900 crashed while on a routine support mission from a remote classified airstrip on the Nellis range to the Tonopah Test Range. It departed at 03:43 for Tonopah. After reporting the runway lights in sight, the pilot configured the airplane for the approach and initiated a circling maneuver to the right for a visual straight-in approach to runway 32. During the turn the pilot suffered a sudden cardiac death. Half way through the turn the airplane began a gradual descent until it impacted the ground. The airplane broke up and burst into flames. Investigation revealed that the pilot had violated federal policy and directives, wilfully deceived flight medical examiners, suppressed significant medical information and ingested inappropriate medications for a deteriorating and dangerous health condition. The pilot had high blood pressure and failed to report it, and denied taking medications to his Federal Aviation Administration flight physical examiners.

Avirex

The twin engine aircraft departed Brazzaville on a charter flight to Kinshasa, carrying 13 passengers (all Air France crew members) and two pilots. On approach to Kinshasa, the crew encountered poor weather conditions with thunderstorm activity, heavy rain falls and strong crosswinds. After touchdown, the aircraft became unstable, deviated to the left and veered off runway. While contacting soft ground, the aircraft lost its undercarriage and slid for few dozen metres before coming to rest beside the runway. All 15 occupants escaped uninjured but the aircraft was damaged beyond repair.

Raytheon Aircraft Services

The aircraft collided with mountainous terrain in a level descent during a visual approach to the destination airport. According to recorded radar data, 10 minutes after descending from 15,000 feet, the flight impacted about 200 feet below the top of the partially obscured ridgeline (elevation of 2550 feet), and 8 miles from the destination. The data indicates the flight path was similar to the global positioning satellite (GPS) approach to the airport. Six minutes before the accident, and the pilot's last transmission to air traffic control, he was informed and acknowledged that radar service was terminated. The flight was 12.4 miles from the accident site when radar contact was lost. Reduced visibility due to fog hampered search & rescue efforts, and the aircraft wreckage was located the next day. The aircraft was equipped with a GPS navigation system; however the installation was incomplete, restricting its use to visual flight rules (VFR) only. The investigation did not determine if the GPS was being used at the time. A non-enhanced Ground Proximity Warning System was also installed. The maximum elevation figure listed on the sectional aeronautical chart covering the area of the accident site and destination airport was 3000 feet mean sea level. The chart also shows an advisory for the area to use caution due to rapidly rising.

SkyLink Express - Canada

On take off from runway 11 at St. John's, the crew felt the nose of the aircraft rise to a high-pitch attitude. The aircraft climbed to about 150 to 200 feet, and was about to enter cloud when the crew reduced power. The crew lowered the nose, and force-landed the aircraft on the runway. The main gear, wings, engines and fuselage sustained substantial structural damage. Weather conditions at the time of the crash were reported as: winds 090° at 25 knots gusting to 35 knots, horizontal visibility 1/2 statute mile in light rain and fog, vertical visibility 100 feet, temperature 15° Celsius, dew point 15° Celsius, altimeter 29.31 Hg., pressure dropping.

SAL Express

While descending to Lubango Airport following an uneventful flight from Luanda, the crew encountered poor weather conditions with heavy rain falls and low ceiling. In such conditions, the aircraft struck the slope of a mountain located 16 km northwest of runway 10 threshold. One passenger survived while 16 other occupants were killed.

Avirex

The twin engine aircraft departed Libreville on a charter flight to Moanda, carrying employees of the Société d’Électricité et d’Énergie du Gabon (S.E.E.G.). While approaching Moanda, the crew was cleared to descent to 4,100 feet and encountered poor visibility due to fog. On short final, the aircraft struck the ground and crashed 1,600 metres short of runway 14. A pilot and two passengers were killed while seven other occupants were injured.

ACE Air Cargo

The airline transport pilot was cleared for the localizer approach. The airplane impacted the ground 3.2 nautical miles from the runway threshold. The minimum descent altitude (MDA) for the approach was 560 feet msl, which is 263 feet above touchdown. Night, instrument meteorological conditions prevailed at the time of the accident. The surrounding terrain was flat, snow-covered, and featureless. The reported weather was 200 feet overcast, 1 1/2 miles visibility in snow, and winds of 12 knots, gusting to 32 knots. The pilot reported he was established on the final approach course, descending to the MDA, and then woke up in the snow. He said he did not remember any problems with the airplane. No pre accident mechanical anomalies were discovered with the airplane during the investigation. The airport has high intensity runway lights, sequenced flashing lead-in lights, and visual approach slope indicator lights. All airport lights and navigation aids were functioning. The airplane was not equipped with an autopilot. Captains have the option of requesting a copilot, but, the captain's pay is reduced by a portion equal to one-half the copilot's pay. The pilot had returned from the previous nights trip at 0725. He had three rest periods, four hours, two hours, and five hours 15 minutes, since his previous nights flight. Each rest period was interrupted by contact with the company. The company indicated that it is the pilot's responsibility to tell the company if duty times are being exceeded. 14 CFR 135.267 states, in part: '(d) Each assignment ... must provide for at least 10 consecutive hours of rest during the 24 hours that precedes the planned completion of the assignment.'

RégionnAir

The Régionnair Inc. Beechcraft 1900C, serial number UC-85, with two pilots and 10 passengers on board, was making an instrument flight rules (IFR) flight between Lourdes-de-Blanc-Sablon, Quebec, and Saint-Augustin, Quebec. Just before initiation of descent, the radiotelephone operator of the Saint-Augustin Airport UNICOM (private advisory service) station informed the crew that the ceiling was 300 feet, visibility a quarter of a mile in snow flurries, and the winds from the southeast at 15 knots gusting to 20 knots. The crew made the LOC/DME (localizer transmitter / distance-measuring equipment) non-precision approach for runway 20. The approach proceeded normally until the minimum descent altitude (MDA). When the first officer reported sighting the ground beneath the aircraft, the captain decided to continue descending below the MDA. Thirty-five seconds later, the ground proximity warning system (GPWS) [email protected] audible alarm sounded. Three seconds later, the aircraft flew into the frozen surface of the Saint-Augustin River. The occupants escaped the accident unharmed. The aircraft was heavily damaged.

Ameriflight

The Beech 1900C cargo aircraft was loaded with more than 4,962 pounds of cargo during an approximate 20 minute period. No scale was available at the aircraft, forcing loaders to rely on tallying either waybill weights or estimates of total cargo weight and center of gravity (CG) during the brief loading period. Additionally, a strike had shut down a major cargo competitor at the time with substantial cargo overflow to the operator. Post-crash examination determined the cargo load was 656 pounds greater than that documented on the pilot's load manifest, and the CG was between 6.8 and 11.3 inches aft of the aft limit. The airplane behaved normally, according to the pilot, until he initiated full flaps for landing approaching the threshold of runway 34L at the Seattle-Tacoma International airport. At this time, the aircraft's airspeed began to decay rapidly and a high sink rate developed as the aircraft entered into a stall/mush condition. The aircraft then landed hard, overloading the nose and left-main landing gear which collapsed. A post-impact fuel system leak during the ground slide led to a post-crash fire.

United Express

The Beechcraft 1900C, N87GL, was in its landing roll on runway 13, and the Beechcraft A90, N1127D, was in its takeoff roll on runway 04. The collision occurred at the intersection of the two runways. The flight crew of the Beechcraft 1900C had made appropriate efforts to coordinate the approach and landing through radio communications and visual monitoring; however they mistook a Cherokee pilot's transmission (that he was holding for departure on runway 04) as a response from the Beechcraft A90 to their request for the Beechcraft A90's intentions, and therefore mistakenly believed that the Beechcraft A90 was not planning to take off until after the Beechcraft 1900C had cleared the runway. The failure of the Beechcraft A90 pilot to announce over the common traffic advisory frequency his intention to take off created a potential for collision between the two airplanes.

USAir Express - US Airways Express

On IFR arrival, flight 4821 was cleared to intersection 17 northeast of airport at 6,000 feet, then for ILS runway 23 approach. Radar service was terminated 6.5 east of intersection. Radar data showed that flight crossed and then bracketed localizer. Flight intercepted glide slope from below about 7 miles outside of outer marker and thence deviated above glide slope. About 2 miles outside of marker, flight was at a full fly down deflection when it entered a descent varying from 1,200 to 2,000 fpm. Aircraft struck wooded mountain top 2.0 miles inside of outer marker (3.9 miles from runway) at elevation of 2,280 feet. Minimum altitude at marker was 3,600 feet. Glide slope elevation at point of impact was approximately 2,900 feet. Evidence was found of inadequate electrical ground path between radome and fuselage which, when combined with existing weather conditions, may have produced electrostatic discharge (precipitation static). Although post-accident tests were not conclusive, the safety board believes that the glide slope indications might have been unreliable due to precipitation static interference. Two occupants survived while two others (one pilot and one passenger) were killed.

Business Express - USA

The purpose of the flight was to prepare two first officers for a captain upgrade flight. The instructor pilot disabled the student's attitude indicator during flight, and the student had difficulty maintaining airplane control. During a simulated instrument approach, while in the procedure turn, the instructor simulated an engine failure in addition to the attitude indicator failure. The student asked the instructor to take control of the airplane because he became disoriented, however, the instructor refused. The investigation revealed that the instructor would turn his own flight instrument lights to the 'dim' position when the student was flying so that he could not 'peek' at the operable attitude indicator. Examination of the wreckage revealed that the instructor's light rheostat was in the dim position. The accident occurred over the ocean, on a moonless night. Neither the operator, nor the FAA were aware that this instructor was using Block Island for training, or what training methods he was employing.

Republic of China Air Force

En route from Taipei to Chiayi, the crew encountered poor weather conditions with heavy rain falls and moderate to severe turbulences. The aircraft entered an uncontrolled descent and crashed in a sugar cane field located in Yuanlin, about 60 km northeast of Chiayi Airport. The aircraft disintegrated on impact and all 18 occupants were killed, among them high ranking officers of the Taiwan Army who were flying to Chiayi to proceed to an inspection of the military installations. At the time of the accident, weather was poor as the typhoon 'Yancy' was passing over Taiwan.

Aerolift Philippines

After takeoff from Manila-Ninoy Aquino Airport, while climbing to an altitude of about 400 feet, the crew reported engine problems and elected to return for an emergency landing. Shortly later, the aircraft banked right, lost height and nosed down by an angle of 70° before crashing onto a house located in the district of Paranaque, about one km from the airport. The aircraft and the house were destroyed. All 21 occupants as well as four people on the ground were killed.