Takeoff (climb)

The pilot-in-command stated that shortly after takeoff, when the airplane was about 150 feet above the ground over a stand of trees, the left engine lost power. The pilots made a hard forced landing in a field, skidded and came to a stop against a farm building. The power loss occurred over a wooded area. Postaccident examination revealed the left engine driven fuel pump shaft had failed. Airplane records indicated the most recent maintenance occurred in november 1991. The airplane had flown 148 hours since that date.

During the takeoff roll at Karachi-Quaid-e-Azam Airport, at a speed of 270-280 km/h, the pilot-in-command pulled up on the control column to start the rotation but the aircraft failed to respond. The crew decided to abandon the takeoff procedure and initiated an emergency braking procedure. Unable to stop within the remaining distance, the aircraft overran, rolled for about 500 metres then lost its nose gear and came to rest. All 117 occupants escaped uninjured while the aircraft was damaged beyond repair.

After liftoff from runway 30 at Krasnoyarsk-Iemilianovo Airport, while climbing at a speed of 165 km/h, the aircraft encountered difficulties to gain height. It collided with 25 metres tall trees located about 1,000 metres past the runway end, rolled to the right and crashed in a wooded area, some 450 metres to the right of the extended centerline. Both pilots and a passenger were killed.

During the night before the accident, freezing rain followed later by snow, fell on the ramp where the airplane was parked. A witness reported that while assisting the pilot in removing snow from the airplane, he noted that 80% of the wing was covered with a coarse layer of ice, from 1/16 to 3/16 in thickness, that was not removed before flight. After the accident, a fireman from the city of lubbock fire department noted ice on the wing approximately 1/16th of an inch thick that had a rough texture that looked as if deposited by freezing rain. The pilot reported that shortly after take off she heard a power decrease and felt surges in the aircraft. The pilot then looked for a place to land. A detailed examination of the engine revealed no mechanical deficiencies.

During the takeoff roll on runway 20 at Kathmandu-Tribhuvan Airport, the aircraft failed to get airborne, overran, went through a fence and came to rest in a field. A passenger and a pilot were killed while all other occupants were rescued.

While climbing through 6,300 feet, the pilot reported the complete loss of power on the right engine. Approx 4 min later, and after the pilot had established an emergency descent for a landing, he reported that the left engine had also lost power. The airplane impacted a driveway and skidded into a building. Examination revealed that the right engine failed due to shifting of the engine case halves. Review of the engine maintenance records indicated that several cylinders had been replaced in recent months; the cylinder through bolts are used to torque the engine case. A reason for the loss of power on the left engine was not determined.

A witness located near the departure end of the runway saw the airplane initially climb in a normal manner, then stay below the clouds and make a shallow bank 180-degree left turn and descend below a tree line. Tower tapes revealed that the pilot twice transmitted that he was "coming back" to the airport during which the background sound of the "fuel selector off" warning horn was heard. The pilot then informed the controller "I've got to get back", and no warning horn was heard. The airplane collided with trees and came to rest about 6,500 feet sse of the runway's end. Prior to departure, the airplane was refueled with 40 gals of jet a (20 gals per tank), which increased the total fuel load to 148 gals. The flight manual required that the fuel balance between the left and right tanks be kept within 200 pounds, and suggested turning off one fuel selector to correct unbalance situations. The condition of one fuel selector turned off will cause the "fuel selector off" warning horn to sound. Exam of the aircraft revealed no evidence of preimpact failures. Prop blade butt signatures indicated it was operating in the governing range, and engine power was being produced at impact.

Few minutes after takeoff from Mombasa-Daniel Arap Moi Airport, while climbing, the twin engine aircraft went out of control and crashed in an open field located 20 km south of the airport. Both passengers were seriously injured and the pilot was killed.

The aircraft was completing a flight from Kish Island to Tehran with an intermediate stop in Isfahan. Shortly after takeoff from Isfahan-Shahid Beheshti Airport, while climbing to the altitude of 2,000 feet, the crew reported pressurisation problems and was cleared to return for an emergency landing. Five minutes after its departure, the aircraft went out of control and crashed few km from the airport. All 12 occupants were killed, among them General Mansour Sattari, Chief of the Iranian Air Force.

Shortly after takeoff, one of the engine failed. The pilot elected to make an emergency landing when the aircraft crashed near the runway end. Both occupants were killed, among them Eduardo Mata, Mexican conductor and composer. He was accompanied by Marina Anaya and was en route to Dallas, TX.