Human factor

Following an uneventful cargo flight from Miami-Intl Airport on behalf of Lineas Aéreas Suramericanas, the crew started a night approach to Bogotá-El Dorado Airport. On final, the aircraft was unstable and too low when the GPWS alarm sounded five times. The captain increased engine power and elected to gain height, causing the aircraft to continue over the glide. At an excessive speed of 180 knots, the aircraft landed 1,500 feet past the runway 13L threshold (runway 13L is 3,800 metres long). After touchdown, the crew started the braking procedure but unable to stop within the remaining distance, the aircraft overran. It lost its undercarriage, collided with the ILS equipment, lost both engines n°1 and 3 and eventually came to rest few hundred metres further in a grassy area. All three crew members escaped uninjured while the aircraft was damaged beyond repair.

Following an uneventful flight from Rome-Ciampino Airport and a normal landing at Trieste-Ronchi dei Legionari Airport runway 09, the crew vacated the runway and continued via taxiway Bravo to the apron. The copilot was the pilot-in-command and he was facing sun while approaching the ramp. At the last moment, the captain noticed a dump truck on the right side of the taxiway. He took over controls and elected to turn to the left but the aircraft collided with the truck. The outer part of the right wing was torn off for about 3,5 metres and the fuselage was bent. Also, a fuel tank ruptured, causing a spill on the taxiway. The captain immediately stopped the airplane and all 96 occupants evacuated safely. It appeared that construction works were in progress near the taxiway Bravo. A Notam was not issued about this and the tower controller had not informed the crew either.

The Beechcraft A100, registration C-FMAI, operated by Myrand Aviation Inc., was on a chartered instrument flight rules flight from QuÈbec/Jean Lesage International Airport, Quebec, to Chibougamau/Chapais Airport, Quebec, with two pilots and three passengers on board. The copilot was at the controls and was flying a non-precision approach for Runway 05. The pilot-in-command took the controls less than one mile from the runway threshold and saw the runway when they were over the threshold. At approximately 1018 eastern daylight time, the wheels touched down approximately 1500 feet from the end of Runway 05. The pilot-in-command realized that the remaining landing distance was insufficient. He told the co-pilot to retract the flaps and applied full power, but did not reveal his intentions. The co-pilot cut power, selected reverse pitch and applied full braking. The aircraft continued rolling through the runway end, sank into the gravel and snow, and stopped abruptly about 500 feet past the runway end. The aircraft was severely damaged. None of the occupants were injured.

The pilot stated that he initiated a fuel transfer due to a fuel imbalance. To affect the fuel transfer, he said he "began crossfeed right to left." When the airplane was about 5 to 10 miles away from Spruce Creek Airport, the pilot said he began his descent from 12,500, and also executed a left turn to begin setting up to land, when suddenly, both engines ceased operating. When he leveled the wings both engines restarted due to auto-ignition. He said the fuel gages showed 300 to 350 lbs of fuel for the right tank, and 100 to 150 pounds on the left, so he decided to continue his approach to Spruce Creek Airport. As he approached Spruce Creek Airport, he again entered a left bank to prepare for a left base to runway 23, and while established in the left turn, both engines ceased operating a second time. He said he did not think he could reach the runway, and decided to make an landing on a taxiway. When the wings became level after the turn, he said both engines again restarted while in the vicinity of the beginning of the taxiway. As he was about to land, he said a car pulled out onto the taxiway, and stopped on the centerline, so he applied power to avoid the car. He said he climbed straight out, and when he made a climbing left turn, he said the engines ceased operating a third time, and the airplane descended towards a cluster of condos. With no runway or clear area in sight, the pilot said he guided the airplane to a retention pond. Follow-on/detailed examinations of the aircraft, engines, and propellers were conducted by an FAA Inspector, as well as technical representatives from Raytheon Aircraft Company, Pratt & Whitney Canada, and Hartzell Propeller Company, and no pre accident anomalies were noted with the airframe, flight controls, engines/accessories, or propellers. According to the FAA Inspector, and the technical representative from the airplane manufacturer, Raytheon Aircraft Company, the pilot was transferring fuel from the left fuel tank to the right fuel tank, and with the reduced amount of fuel in the left tank, as he performed left turns, the engine ceased operating. The Raytheon Aircraft Company representative stated that the Pilot Operating Handbook specifies the use of crossfeed for those times when the airplane is operating on a single engine.

Before the flight involved in the accident, the pilot himself had loaded and prepared the aircraft. According to the statement of the official on duty, neither the pilot nor the passengers were behaving conspicuously. The flight plan envisaged a VFR-IFR-VFR flight from Egelsbach (EDFE), south of Frankfurt, to Samedan (LSZS) in the Engadine. After take-off, the flight was to proceed under VFR (visual flight rules) to the waypoint RID and then to waypoint GERSA under IFR (instrument flight rules). From GERSA it was then planned to continue flying to Samedan under VFR again. The total duration of the flight was indicated in the flight plan as 75 minutes, and the endurance was indicated as 4 hours and 30 minutes. Take-off took place in Egelsbach at 10:09 LT. At 10:37 LT, the pilot contacted Swiss Radar Lower Sector North on frequency 136.150 MHz as follows: “... level two one zero inbound Trasadingen”. He was instructed to continue flying in the direction of GERSA. At 10:45 LT, the pilot contacted Radar Lower Sector South, on frequency 128.050 MHz, and continued flying as far as LUKOM. Based on an instruction from air traffic control, the aircraft left flight level 210 and descended to flight level 170. The pilot was instructed to continue flying direct to Samedan. At 11:10 LT, the pilot changed from instrument flight rules to visual flight rules and signed off from Lower Sector South. He attempted to contact Samedan. Initially, the communication was poor. After several attempts, he made contact at 11:15 LT on the Samedan aerodrome frequency. At 11:18 LT, the pilot reported that he was over the aerodrome and wanted to fly to the east to get below the cloud ceiling. No further radiocommunication took place. Shortly afterwards, witnesses saw the aircraft fall out of the clouds in an uncontrolled attitude. The aircraft crashed into the ground in a flat spin and with practically no forward motion. The aircraft was destroyed and all five occupants were killed.

A witness at a nearby maintenance facility stated the pilot telephoned him and told him that, during engine start, one engine sputtered and abruptly stopped. The witness stated the pilot told him he wanted to fly the airplane over to have the problem looked at. A witness, who was an airline transport-rated corporate pilot, observed the airplane on takeoff roll and stated the airplane rotated "really late," using approximately 4,000 feet of runway. He stated the airplane climbed to about 400 or 500 feet, then descended in a left spin into the trees. The airplane collided with the ground and caught fire. Examination of the right engine revealed external fire damage and no evidence of mechanical malfunction. Examination of the left engine revealed external fire damage. Disassembly examination of the left engine revealed the rear side of the No. 5 piston from top to bottom was eroded away with characteristics consistent with detonation. The spark plugs displayed "normal" deposits and wear, except the No. 5 bottom plug was contaminated with a fragment of piston ring material, the No. 5 top plug had a dark sooty appearance, and the nose core of the No. 2 bottom plug was fragmented. Flow bench examination of the left fuel servo revealed no abnormalities. The fuel flow manifold diaphragm was heat-damaged. Flow bench examination of the fuel injector lines and nozzles on a serviceable fuel flow manifold revealed the lines and nozzles were free of obstruction. A review of Emergency Operating Procedures for the Aerostar 601P revealed the following: "Normal procedures do not require operation below the single engine minimum control speed, however, should this condition inadvertently arise and engine failure occur, power on the operating engine should immediately be reduced and the nose lowered to attain a speed above ... the single engine minimum control speed."

For unknown reasons, the aircraft landed hard, causing the undercarriage to be torn off. There were no casualties but the aircraft was damaged beyond repair.

For unknown reasons, the aircraft landed hard at Shabunda Airport. Upon landing, the nose gear collapsed and the airplane came to rest on the runway. Nobody was injured but the airplane was damaged beyond repair.

The single engine aircraft was dispatched in Pavlovsk with one technician and two pilots for a local crop spraying mission. While on a night approach to Pavlovsk Airfield, the crew failed to realize his altitude was too low. On final, both lower wings collided with trees (10 metres high). The aircraft rolled to the left to an angle of 45° then crashed 390 metres short of runway, bursting into flames. All three occupants were killed.

The copilot was flying an ILS approach at an airspeed of Vref plus 10 knots, and the captain made visual contact with the runway about 350 feet agl. The airplane then drifted high on the glideslope, and the copilot decreased engine power. The sink rate subsequently became too great. By the time the captain called for a go-around, the airspeed had deteriorated, and the stick shaker activated. Although power was applied for the go-around, the airplane impacted the runway in a level attitude before the engines spooled up. The airplane came to rest in snow, about 20 feet off the left side of the runway, near mid-field.