Learjet 25

While approaching Madinah Airport in limited visibility due to marginal weather conditions, the aircraft went out of control, entered a near vertical descent and crashed on the slope of a mountain located few km from the airport. The aircraft disintegrated on impact and both pilots were killed.

During preflight preparation for departure from a short field the pilot failed to remove the Pitot tube covers. On takeoff roll, the stall warning light began to flicker. Pilot noted airspeed was not registering but did not consider this unusual in the early part of a takeoff roll. Pilot turned left stall warning switch off, then back on, warning light remained on. Pilot then initiated abort procedures, using full reverse thrust and brakes. The aircraft overran runway by about 100 feet and down a rough embankment which separated the landing gear.

While en route, the aircrew encountered stronger headwinds than expected. They realized there would not be enough fuel reserves for an IFR flight to Aspen, so they elected to divert to Eagle, CO. However, their landing at Eagle was delayed due to a snowplow (with no radio) on the runway. After circling and reentering final approach, the aircrew noted that the snowplow was still on the runway, headed in their direction. They continued their approach and the snowplow cleared the runway. According to the snowplow operator, the aircraft was 100 to 200 feet agl when it crossed the threshold. A FSS specialist noted that the aircraft was still airborne when it passed the 2nd turnoff, approximately 2,300 feet from the threshold. After touching down on the snow covered runway, the pilot deployed the spoilers and immediately applied braking action, but was unable to stop on the remaining runway. The aircraft continued off the end of the runway, went down a 15 feet bank and ran into a small ravine. The runway gradient was 1.4% downhill, elev 6,538 feet. Drag chute was not deployed, 600 lbs fuel remaining. All six occupants were evacuated, among them five were injured, one seriously.

After lift-off a flock of birds approached from left to right at about 400 feet. The pilot maneuvered the aircraft behind and above the birds in an attempt to avoid them. Both engines flamed out and the aircraft made a forced landing on a road. Ground witnesses described the climbout as '...very steep...' and '...a steep angle, between 40° 45°.' There was some bird residue on the engines. Both pilots escaped uninjured.

Crashed on landing for unknown reasons. All three occupants were injured and the aircraft was written off.

The twin engine airplane departed Vienna-Schwechat Airport on a training flight to Hamburg-Fuhlsbüttel, West Germany. After 40 minutes into the flight, while cruising at an altitude of 39,000 feet, radio contact was lost with the crew who failed to respond to any ATC calls. The aircraft failed to descend to Hamburg and continued over the Atlantic Ocean. Decision was taken to dispatch a fighter plane and the military crew confirmed that there was no activity and no movement on board once he reached the flying Learjet. After fuel exhausted, both engines stopped and the airplane entered a dive until it crashed in the Atlantic Ocean, about 560 km northwest off Scotland. Few debris were found while the main wreckage disappeared in the sea. All three occupants were killed.

The aircraft was on a night check courier flight. During arrival, the indicated airspeed was well above the legal limit of 250 knots for flight below 10,000 feet. Runway 04R was selected for landing after the crew were advised that their original choice (runway 11) was noise sensitive. They were advised not to descend below 2,000 feet until on final approach. The turn to final was completed about one mile from the runway at an altitude of approximately 700 feet. A steep (5°) final approach was flown with an estimated 1,000 fpm rate of descent. On landing, the aircraft bounced, banked/turned to the right, then it hit the ground, right wing first and burned. An exam of the wreckage revealed the aircraft was configured with the gear extended, the flaps down 20° and the spoilers retracted. No evidence of a preimpact part failure or malfunction was found. The trim was set for a heavy right wing and the fuel switches were set to x-feed fuel. Toxicological checks showed that both pilots had used or been exposed to marijuana and had CO2 in their blood from smoking; use of medication (phenylpropanolamine) by copilot. Evidence of possible fatigue/stress to both. Both pilots were killed.

The approach to Rio Branco-Presidente Médici Airport was initiated in poor weather conditions. On final approach in rain falls, the crew was unable to locate the unlighted runway and decided to initiate a go-around. A second approach was abandoned few minutes later for the same reasons. During a third attempt to land, the airplane stalled and crashed 5 km from the airport. It was destroyed on impact and all 10 occupants were killed.

The aircraft was completing a taxi flight from Araxá to Brasilia with an intermediate stop in Uberaba. After touchdown on runway 17, the aircraft was unable to stop within the remaining distance. It overran, went through a fence, crossed a road and came to rest in a ditch. All 10 occupants were injured and the aircraft was damaged beyond repair.

The crew was cleared to descend from FL310 to 9,000 feet when the airplane struck the slope of an ice covered mountain located about 130 km northeast of Narsarsuaq. The wreckage was found at an altitude of about 2,630 meters and both pilots were killed. For unknown reasons, the airplane descended at an insufficient altitude to clear the obstacles.