Midlothian (County of Edinburgh)

The aircraft was scheduled to operate a night cargo flight from Edinburgh to Coventry. The weather conditions at Edinburgh Airport were wintry with snowfall, which required the aircraft to be de-iced. Shortly after both engines had been started, the commander signalled to the marshaller to remove the Ground Power Unit (GPU) from the aircraft, which was facing nose out from its stand, down a slight slope. As the marshaller went to assist his colleague to remove the GPU to a safe distance prior to the aircraft taxiing off the stand, the aircraft started to move forward slowly, forcing them to run to safety. The flight crew, who were looking into the cockpit, were unaware that the aircraft was moving. It continued to move forward until its right propeller struck the GPU, causing substantial damage to the GPU, the propeller and the engine. The ground crew were uninjured. No cause as to why the aircraft moved could be positively identified.

The aircraft landed at Edinburgh Airport, Scotland, at 00:03 and was parked there on Stand 31 in conditions including light and moderate snowfall. After preparation for a Royal Mail charter flight 670A to Belfast, start clearance was given at 15:03. At 15:12 hrs the crew advised ATC they were shutting down due to a technical problem. The crew then advised their company that a generator would not come on line. An avionics technician carried out diagnosis during which both engines were ground-run twice. No fault was found and the flight crew requested taxi clearance at 17:10. A normal take off from runway 06 was carried out followed by a reduction to climb power at 1,200 feet amsl. At 2,200 feet amsl the aircraft anti-icing systems were selected on. Three seconds later the torque on each engine reduced rapidly to zero. A MAYDAY call was made by the crew advising that they had experienced a double engine failure. The aircraft was ditched in the Firth of Forth estuary some 100 meters from the shoreline near Granton Harbour. Both pilots were killed. Weather reported just before the accident with a temperature of +2°C, dewpoint of -3°C, visibility of more then 10 km, broken clouds at 4500 feet and cover at 8000 feet.

On the day of the accident the aircraft left Bristol under the command of the company's chief pilot for a flight to Edinburgh via East Midlands Airport. After conveying passengers to Edinburgh it was scheduled to position empty at Newcastle Airport to collect passengers for Bristol. Weather briefing had been obtained and a thorough flight plan covering the outward and return flights had been filed before the aircraft left Bristol in the morning. As there were no passengers on the flight from Edinburgh to Newcastle, the captain decided to make use of this sector to continue the other pilot's training for command of the HS-125. Accordingly, the trainee captain was flying the aircraft from the left hand seat. Prior to takeoff he was briefed that a failure of one of the engines (he was not told which one), would be simulated on takeoff and for the purpose of the exercise the rudder bias system would be switched 'OFF'. The pilots decided that no flap would be used for the takeoff which was started from the end of runway 13. The point where the aircraft became airborne was approximately 2,700 feet from the start of the roll, which was normal for the aircraft's weight and configuration, with both engines operating. The training captain called 'rotate' at approximately 120 knots, which was slightly faster than the calculated figure and when the aircraft had reached a height of approximately 12 feet and had accelerated to about 130 knots, he pulled back the thrust lever of the port engine to simulate a failure. He considered that the trainee pilot's reaction to the emergency was slow and was just about to apply right rudder to counteract the yaw when the trainee pilot applied considerable force to the left rudder and locked his leg in position. The captain immediately applied full right aileron and opened the port thrust lever but he was unable to prevent a high rate of roll developing to the left. Approximately 700 feet after the point where the aircraft became airborne the port wing tip struck the runway, fracturing the port fuel tank and spilling out fuel. The aircraft left the runway at an angle of approximately 30 degrees to the left and travelled across the grass, becoming partially inverted before settling back sideways on the ground on its undercarriage. The sideways movement of the aircraft pulled off the nose gear and the aircraft then gyrated across the airfield sustaining further structural damage before coming to rest on its main wheels and tail facing approximately in the opposite direction to the direction of takeoff. During the aircraft's gyrations on the ground, fuel, which was centrifuged out of the fractured port tank, ignited and a flash fire occurred. When the aircraft finally came to rest there was a small residual fire in the port wing which was very quickly extinguished by the airport fire service.

Shortly after takeoff from Edinburgh-Turnhouse Airport, while climbing, an engine failed. The airplane struck power cables, stalled and crashed in a field. Both crew members were evacuated while the aircraft was damaged beyond repair.

On final approach by night to Edinburgh Airport, the twin engine airplane crashed in a corn field short of runway 13. The airplane was destroyed and the pilot, sole on board, was injured.

The aircraft bounced and landing and was unable to stop within the remaining distance. It overran and came to rest in a drainage ditch. All five crew members escaped uninjured while the aircraft was considered as damaged beyond repair.

During the takeoff run, at high speed, an undercarriage collapsed. The airplane skidded on runway and eventually came to rest. Both pilots were uninjured while the aircraft was damaged beyond repair.

The crew was performing a local training sortie at RAF Turnhouse. After touchdown, the twin engine aircraft encountered difficulties to stop within the remaining distance, overran and came to rest into a ditch. Both crew members were uninjured while the aircraft was damaged beyond repair.

Crashed in unknown circumstances in Baron’s Park, southeast of Edinburgh. The pilot, sole on board, was killed.

While on approach to Edinburgh in snow falls, crew made an emergency landing on the Carrick Knowe Golf course located in Corstorphine, less than 2 km from runway threshold. Both crew members were unhurt while the aircraft was damaged beyond repair.