Convair CV-340

Rovos Air

On Tuesday 10 July 2018, at approximately 1439Z, two crew members and 17 passengers took off on a ZS-BRV aircraft for a scenic flight from Wonderboom Aerodrome (FAWB) destined for Pilanesberg Aerodrome (FAPN) when the accident occurred. During take-off, the left engine caught fire, however, the crew continued with the flight. They declared an emergency by broadcasting ‘MAYDAY’ and requesting to return to the departure aerodrome. The crew turned to the right with the intention of returning to the aerodrome. However, the left engine fire intensified, causing severe damage to the left wing rear spar and left aileron system, resulting in the aircraft losing height and the crew losing control of the aircraft and colliding with power lines, prior to crashing into a factory building. The footage taken by one of the passengers using their cellphone showed flames coming from the front top side of the left engine cowling and exhaust area after take-off. The air traffic control (ATC) on duty at the time of the accident confirmed that the left engine had caught fire during take-off and that the crew had requested clearance to return to the aerodrome. The ATC then activated the crash alarm and the aircraft was prioritized for landing. During the accident sequence that followed, one passenger (engineer) occupying the jump seat in the cockpit was fatally injured and 18 others sustained injuries. The investigation revealed that during take-off, the left engine had caught fire and the crew had continued with the flight without securing the left engine as prescribed in the aircraft flight manual (AFM). The crew had then declared an emergency and attempted to return to the aerodrome, however, they lost control of the aircraft and collided with power lines prior to crashing into a factory building. Owned by Rovos Air (part of the South African Rovos Rail Group), the aircraft was donated to the Dutch Museum Aviodrome based in Lelystad and has to be transferred to Europe with a delivery date on 23 July 2018. For this occasion, the aircraft was repaint with full Martin's Air Charter colorscheme. Part of the convoy program to Europe, the airplane was subject to several test flights, carrying engineers, technicians, pilots and also members of the Aviodrome Museum.

Miami Air Lease

The pilot stated that when the airplane was 3 miles east of the shoreline, at 3,000 feet, he felt a short tremor in the left engine followed by loss of power from the left engine. The pilot elected to return to the departure airport while declaring an emergency to air traffic control. During the process of securing the left engine the pilot noticed the propeller did not feathered and the airplane was descending quickly. He maneuvered the airplane and ditched in a lake. On September 26, 2003 engine s/n: 34592 was removed from the accident airplane due to high oil consumption with 1,225 hours of time in service. It was reportedly preserved and stored at the operator's warehouse. The mechanic who reportedly preserved the engine stated he followed the steps in the manual that was provided by the operator. On October 27, 2004 the left engine, s/n: NK510332, which was producing metal for months, was removed and engine s/n: 34592 was taken out of preservation and installed in the left position on the accident airplane with a new overhauled propeller assembly. On November 06, 2004, the left engine's, s/n: 34592, propeller governor was replaced due to the left propeller slow to response to power setting. During the post accident engine examination, the engine's main oil screen was observed with deposits of metal flakes and fragments, the oil scavenge pump would not rotate and had deposits of metal fragments internally; the engine was seized and wound not rotate. Catastrophic damage was observed to the accessories drive gears, oil transfer tube, and protection covers in the front accessory area. It was observed during a visual inspection of the crankshaft and bearings, including the front journal and front crankpin had damaged and sections of their respective bearings missing. The master rod bearing had incurred a catastrophic failure. Several cylinders skirts were found with impact marks from piston rods. Before removing the propeller assembly from the engine, the propeller feather system was flush with fresh oil and pressured with a feathering pump; the propeller blades were observed moving toward the feather position. Examination of the propeller assembly revealed metal contamination throughout the system; the propeller's governor screen gasket was clogged with metal contamination. The maintenance manual provided by the operator used for the engine preservation details several tasks required to be accomplished to the engine for proper engine preservation (i.e. thrust bear, cylinder, and propeller shaft treatments), which the mechanic did not mention he performed. No documentation for inspection and condition status of the dehydrator plugs were available. Documentation for flushing of contamination from the metal producing engine, s/n NK510332, was not available nor knowledge by the operator if since a process was preformed to the left engine's oil tank and its system before installation of engine s/n: 34592. An FAA review of the cargo manifest discovered two different manifest weights. The cargo manifest obtained at the accident scene showed a total of 267 pieces of cargo annotated at a total weight of 10, 837 lbs. The sealed cargo manifest package showed a total of 267 pieces of cargo annotated at a total weight of 14,182 lbs. The maximum payload weight for the accident airplane is 13,586 lbs.

Florida Aircraft Leasing Corporation

En route from Saint Louis to Minneapolis, while cruising at an altitude of 6,000 feet, the right engine caught fire. The copilot declared an emergency and was cleared to divert to Elma Airport. Shortly later, the right engine detached. The crew completed an emergency descent but made a forced landing off airport on land. All four occupants evacuated safely while the aircraft was considered as damaged beyond repair.

Saudi Arabian Airlines - SAUDIA

The aircraft was completing a flight from Najran to Aden with intermediate stops in Sana'a and Ta'izz. On approach to Sana'a Airport, the crew encountered technical problems and the captain decided to attempt an emergency landing on a road located few km from the airport. All occupants escaped uninjured while the aircraft was damaged beyond repair.

Saudi Arabian Airlines - SAUDIA

After takeoff from Jeddah-King Abdulaziz Airport, while climbing, the crew reported technical problems and was cleared to return for an emergency landing. On final, the copilot extended flaps to an angle of 17° and the landing was properly completed on runway 33L. Nevertheless, after touchdown, the airplane veered off runway to the left and while contacting rocky ground, the nose gear collapsed and the airplane came to rest. All 15 occupants evacuated safely while the airplane was damaged beyond repair.

Saudi Arabian Airlines - SAUDIA

While approaching Dhahran Airport, the crew encountered poor weather conditions with sandstorm. Unable to locate the runway, the pilot initiated a go-around and followed a holding pattern. A second attempt to land was made few minutes later but again, the crew was forced to make a go-around due to poor visibility. During the third approach, the aircraft was too low and struck a sand dune located 5 km short of runway and crashed. All 11 occupants were killed.

Delta Airlines

En route, the crew informed ATC about the failure of the left engine and was cleared to divert to Evansville-Dress Airport for an emergency landing. On short final, the captain decided to make a go-around when the airplane stalled and crashed short of runway threshold. All 42 occupants were evacuated among them 10 were injured. The aircraft was considered as damaged beyond repair.

Cruzeiro do Sul

The aircraft was on scheduled domestic flight from São Paulo to Rio de Janeiro with 5 crew and 45 passengers aboard. Following an eight-minute delay due to heavy traffic, the flight was cleared to take off from São Paulo-Congonhas Airport. One minute after takeoff the pilot-in-command reported to the tower that the aircraft's n°2 engine was on fire, and he would return to the airport. A left turn was begun, and it is presumed that the pilot feathered n°2 propeller. He began the downwind leg to runway 16 and asked the tower operators whether anything abnormal could be seen regarding the aircraft's n°2 engine. The tower operators, from whom n°2 engine was hidden by the fuselage, reported that they could not see anything abnormal. Presumably the pilot unfeathered the propeller which started windmilling. Approximately abeam the tower, the aircraft began to lose altitude and when it started the final turn its altitude was very low. The aircraft was probably nosed up and stalled with a bank of 45°; it first struck a house with its nose and left wing, then hit the ground (elevation 800 meters) and made a 260° turn on its left wing. The accident occurred at night in a well illuminated, densely populated area. The aircraft was destroyed upon impact and 4 crew members and 33 passengers were killed, 13 other occupants being injured.

Cruzeiro do Sul

The landing procedure was completed on a waterlogged runway. After touchdown, the airplane deviated from the centerline to the right and veered off runway. While contacting soft ground, the undercarriage collapsed and the airplane came to rest. All nine occupants were evacuated safely while the aircraft was damaged beyond repair.

Frontier Airlines

The first officer, who was flying, started the approach to runway 17 which does not have approach lights nor Instrument landing System. At the time the aircraft was northbound in the holding pattern of the Grand Island VOR. A 90 degree left turn, then a 270 degree right turn was accomplished which aligned the aircraft, with the runway. The following sequence of events was described by the captain and substantiated by the first officer. The captain stated “. . . We completed the approach checklist and made a turn north of the low frequency range (8391 feet from the threshold of runway 17) which was visible as we went over it. The area around the range and the south half of the distance to the airport was absolutely clear. Our path was one which had the runway lights clearly aligned. (The runway lights were on at position 3 which is medium intensity.) The approach was a normal gradual descent. The radios were tuned to the low frequency range and the Omni. Since we were not ready to land our checklist was complete with the exception of approach flaps and landing flaps and ADI on. There were no ground witnesses to the approach or crash which was in a large level open field. There was no moonlight and the captain testified that except for the lights on the range station, there were no ground lights seen under the approach path. Both he and the first officer testified that they did not observe the runway light appear to "spread," which amounts to a visual warning of being very low - nearly at the level of the lights upon approaching the runway. A weather observation at 2037. seven minutes after the accident was: special, clear, visibility 7 miles, temperature 26 degrees F, dewpoint 26 degrees F, wind south 10 knots, altimeter setting 29.80 inches (aircraft accident) (observation recorded but not transmitted via teletype). The initial point of contact of the nosewheel was about three feet to the right of the extended centerline of runway 17 and approximately 4,061 feet short of the threshold of that runway. Additional marks indicate that the aircraft struck while nearly level longitudinally, in a yaw of about six degrees to the right, and in a shallow left bank. Upon initial impact, the left main landing gear collapsed and was torn free. Both propellers struck the ground and were also torn off with the nose cones of their respective engines. The left wing became detached as the aircraft rolled to the left onto its back and slid, inverted, swerving to the left and coming to rest on a heading of about 045 degrees at a distance of 1,275 feet from the place of first contact. Fire developed in the detached left wing, but not in the fuselage. Consequently all 43 occupants were able to evacuate the aircraft quickly, with the majority going out through the galley service door, which the stewardess opened and the others leaving via the emergency exit at seat 8D. The captain left through a cockpit window; the first officer and one passenger through a hole in the fuselage. Injuries were sustained by both pilots and three passengers. The aircraft was destroyed by a post crash fire.

LAN Chile - Linea Aérea Nacional de Chile

After takeoff from Vallenar, while in initial climb, one of the engine failed. For unknown reason, the crew was unable to feather the propeller and the captain decided to attempt an emergency landing. The airplane belly landed in a field located 5 km north of the airport and came to rest. All 30 occupants were evacuates safely.

United States Navy - USN

The aircraft was performing a flight from New York to Andrews AFB, carrying a crew of four and four passengers, among them Paul B. Fay Jr. who should be appointed under-secretary of the US Navy. While descending to Andrews, the crew was informed about poor weather conditions at destination and the captain decided to divert to Bader Field. Few minutes later, the electric system failed. The pilot-in-command was able to land on runway 04 at Bader Field but after touchdown, he was unable to activate the reverse thrust due to the electric failure. Unable to stop withing the remaining distance, the aircraft overran and eventually plunged into the Bay of Thorofare. All eight occupants were quickly rescued while the aircraft was lost.

Real Aerovias

On approach to Galeão Airport in Rio, weather conditions worsened and the crew was instructed by ATC to follow a holding pattern. Heavy rain falls and foggy conditions prevailed at this time. Few minutes later, the crew attempted a second approach to Galeão Airport when the airplane went out of control and crashed into the Guanabara Bay. The aircraft was totally destroyed upon impact and all 54 occupants were killed. Up to date, this was the worst air tragedy in Brazil.

JAT Yugoslav Airlines - Jugoslovenski Aerotransport

The aircraft was on a scheduled flight from Belgrade to Munich-Riem Airport with an intermediate refueling stop at Vienna. It departed from Vienna for Munich at 1837LT with 30 people aboard. At 2033, after passing Munich NDB at 12 000 feet, the flight reported to Munich Area Control Centre and shortly thereafter was instructed to descend to 10 000 feet. The pilot was asked whether he wished an ILS approach monitored by GCA but he decided on a GCA approach. At approximately 2048, after overflying non- directional beacon DHR (35 km east of Riem Airport), a further descent to 7 000 feet was carried out. A subsequent instruction to descend to 4 000 feet was also complied with and the pilot was asked to notify GCA when passing 6 000 feet. At 2053 the flight was cleared for a direct instrument approach to runway 25. At 2056 it reported passing 6 300 feet and at 2058 as having reached 3 500 feet. It was then cleared to descend to 3 000 this altitude was to be maintained. The flight was then 7 miles east of the airport. At 2059 the pilot reported leaving 3 000 feet and was requested to carry out the necessary cockpit checks for landing. GCA ordered a course of 240 degrees and advised the pilot that he was 4.5 miles from touchdown. He was requested to maintain 3 000 feet and was ordered to pull up to this altitude as he was below the minimum height of his glide path. No answer was received. The aircraft struck the ground at approximately 2103 hours, killing 2 crew members and 1 passenger and injuring 12 others.

JAT Yugoslav Airlines - Jugoslovenski Aerotransport

The flight departed Belgrade Airport in clear weather at approximately 1230 hours Greenwich Mean Time en route to Vienna carrying 25 passengers and a crew of 4. At 1425 hours the aircraft was transferred by area control to Vienna approach control. The pilot was advised to use the homer for approach and a QDM of 100° was given at 1429 hours. At 1430 the aircraft reported over radio beacon OEW and was instructed to remain 150 meters (500 feet) above the cloud top. A QDM of 123° was obtained at this time. At 1431 the aircraft was cleared to descend to 1,060 meters (3,500 feet) and instructed to report again at this altitude over beacon OEW. The flight was cleared then for an instrument approach, the pilot was given the QNH setting for his altimeter and instructed to use Runway 12. Bearings were taken and QDM's reported to the pilot, the last being: "1439 hours: QDM 140°. As requested, this one was repeated. However, it was not acknowledged by the pilot. Shortly after, the aircraft, while flying In the direction of the airport, with landing gear down and flaps at the approach angle, gave full throttle for a moment, pulled up and crashed at 1440 hours into the northwest slope of the Kahlenberg, facing up- hill. Fire broke out following impact and the aircraft was completely destroyed. The pilot and five passengers were killed and one passenger received fatal injuries. The other occupants of the aircraft received injuries of varying degrees and seven passengers required no medical attention whatsoever.

Braniff International Airways

Flight 560 is a Braniff daily scheduled flight between Dallas, Texas, and Chicago, Illinois, with intermediate stops at Oklahoma City, Oklahoma; Wichita, Kansas; and Kansas City, Missouri. On July 17 the flight crew, assigned at Dallas for the entire trip, consisted of Captain Allen R. Tobin. First Officer Orbin W. Hanks, and Hostess Mary E. Teel. Captain Tobin and First Officer Hanks arrived at the airport more than an hour before the scheduled departure. During this time preflight preparations were made in a normal and routine manner. The pilots were briefed and furnished the latest weather forecasts and reports over the route and for the scheduled stops. No weather conditions of consequence were indicated except that fog was forecast for the Chicago area, and the visibility was expected to be restricted to possibly one-half mile, on arrival. Flight 560 departed Dallas on schedule at 0100. The flight segments between Dallas and Wichita were uneventful; however, while starting the No. 1 (left) engine at Wichita prior to departure a small carburetor intake manifold fire occurred which was immediately extinguished. There was no damage incurred and the engine started easily on the second attempt. The flight proceeded to Kansas City where it landed at 0416. As the aircraft taxied to the terminal several persons noted that the No. 1 propeller was feathered and stopped. Captain Tobin told Braniff personnel that it feathered while being returned to positive pitch after reverse thrust had been used during the landing roll deceleration. The captain unfeathered the propeller before deplaning and maintenance personnel checked it for malfunction; none was indicated. No other mechanical service was requested or performed. The aircraft was serviced to 1,000 gallons of fuel while Captain Tobin and First Officer Hanks received supplemental weather information and completed other preparations for the last segment of the route to Chicago. Flight 560 departed Kansas City at 0435 in accordance with a VFR (Visual Flight Rules) flight plan. The aircraft, according to company records, was loaded to a gross weight of 45,622 pounds. This amount was less than the maximum allowable of 47,000 pounds and the load was properly distributed with respect to the center of gravity limitations. The flight climbed to 15,000 feet m. s. l. (mean sea level. At 0519 it requested and received an IFR (Instrument Flight Rules) flight plan for the remainder of the trip; accordingly, routine en route reports were made. This segment, as well as the previous, was described as very pleasant, smooth, and conducted primarily above or clear of the clouds. At 0547 ARTC cleared the flight as follows: “ATC clears Braniff 560 to the Naperville Omni via Peoria, Victor 116 over Joliet, maintain at least l,000 on top, tops reported 2,000 m. s. l., contact Chicago Center on 118.9 mc. passing Peoria.” This clearance was acknowledged and the flight reported accordingly. At 0556 Chicago ARTC broadcast a Chicago special weather observation which was: “Thin obscuration, visibility one-half mile.” At approximately 0609 the flight was asked by ARTC if it could land with one-half mile visibility and 1,000 feet thin obscuration. Braniff 560 replied that it could. At 0611 the flight reported over Joliet, 1,000 on top, whereupon ARTC advised it to contact the Chicago Midway Approach Control. Immediate contact was made and the flight was given the same weather and the latest altimeter information. The crew reported at 0618 over Naperville and was radar vectored by Approach Control to the outer marker for an ILS (Instrument Landing System) approach to runway 13R for landing. At 0624 the aircraft hit the sign and crashed through the airport boundary fence onto the airport. Another flight, holding off the runway before takeoff saw the wreckage stop and immediately notified the tower; crash emergency procedures were promptly initiated. The weather conditions reported at the time of the accident were: Partial obscuration; visibility one-half mile, fog, and smoke; sea level pressure 1014.2; temperature 71, dewpoint 68; wind south 6; altimeter 29.94; remarks, fog 8.

United Airlines

Flight 329 departed Des Moines on a VFR (Visual Flight Reed) night plan at 1608 for Omaha, Nebraska. The gross weight of the aircraft was 45,215 pounds 1,685 pounds less than the allowable 46,900 pounds. According to company records, the load was properly distributed with respect to the canter of gravity of the aircraft. The climb to 5,000 feet was uneventful but at that altitude the crew noticed vibration and a slight fore-and-aft movement of the control column. The climb was continued to 6,000 feet, where the aircraft was leveled off and power was reduced. As the vibration was still present at this time, the captain attempted to dampen it by engaging the autopilot; however, this was unsuccessful and it was immediately disengaged. The first officer next lowered the flaps, first to 5 degrees and then to 15 degrees, without any noticeable effect. The “Fasten Seat Belt" sign was turned on and the captain told the first officer to advise the company of their difficulty via radio. About this time a sudden failure in the control system was felt and it was with extreme difficulty that any semblance of elevator control was maintained. The first officer again tried lowering the flaps, this time to the 24-degree position, but as this did not help to maintain control he returned them to the 15-degree position, where it was found the most favorable results were attained. Accordingly, the first officer transmitted "Mayday” (distress call) on the radio and said that they were attempting to return to Des Moines but were experiencing control trouble. The buffeting became so severe it was then necessary for the copilot to help the can hold the control column. However, the buffeting lessened and the captain advised the first officer to depressurize the aircraft and tell the stewardess to prepare the passengers for an emergency landing. This was done. By that time the aircraft had descended below 3,000 feet. Both throttles were retarded in turn to see if the trouble could possibly be caused by one of the engines. This also proved to no avail. The vibration built up to high level and suddenly another failure in the control system was felt and the air-plane went into a steep climb. As it seemed that a stall was imminent, the captain quickly moved the propellers to a high r. p. m. and pushed the throttles forward until about 50 inches of manifold pressure was seen on the gauges. The airplane then nosed over and began to dive at a very steep angle. During this rapid descent the captain reduced power and headed toward open country to his right. When the aircraft reached 500 feet above the ground the captain was successful in flaring the aircraft and it struck the ground in a flat attitude. All occupants were quickly deplaned as soon as the aircraft stopped.

Continental Airlines

At 0833 Trip 46 was cleared to Runway 10 for takeoff. At this time the aircraft carried 585 gallons of fuel and was loaded to a gross takeoff weight of 36,345 pounds which was 10,655 pounds less than the maximum allowable. The load was properly distributed so that the center of gravity of the aircraft was within the approved limits. A pre-takeoff check was conducted adjacent to Runway 10 at which time the propellers, engines and instruments gave normal Indications. A part of this check included moving the control column fore and aft and turning the wheel left and right in order to check the control system for freedom of movement and full travel. At 0838 the flight was cleared for takeoff which was made using normal takeoff power. Immediately after becoming airborne the crew noted a slight vibration which was attributed to an unbalanced condition of the spinning main landing gear wheels. Captain Persing applied brakes during the landing gear retraction to eliminate this vibration; however, it not only continued but rapidly increased in severity. The aircraft reached an altitude of approximately 75 feet, the highest attained, and was near the airport boundary when the vibration stopped with a sudden jolt and the aircraft assumed a nose-down attitude. The first officer immediately sensing the situation joined the captain and both exerted their entire strength applying back pressure to their respective control columns to keep the aircraft from plunging into the ground. The captain quickly reduced power; however, the nose-down pressure could not be completely overcome. The first officer used nose-up trim control in an effort to relieve the nose-down pressure; this action had no appreciable effect and during the last attempt the trim tab control wheel appeared to be stuck. The captain established a shallow left turn with the thought of returning to the airport and continued the turn about 45 degrees from the takeoff heading. As air speed decreased power was momentarily increased whereupon it became evident to the crew that using power sufficient to maintain flight resulted in an insurmountable nose-down pressure. The captain therefore decided to make a wheels-up landing straight ahead. Close to the ground the first officer closed the throttles and the captain pulled the electrical crash bar. Contact with the ground followed with the aircraft in a near-level attitude and at approximately 100 m.p.h. Although the passengers and crew received injuries of varying degrees, they were able to get out of the aircraft unassisted in an orderly manner. The evacuation was mainly through the rear service door (emergency exit) and was accomplished in about 30 seconds. There was no fire.