Landing (descent or approach)

At the time of the accident, gusty winds were forecast for the surface to higher altitudes. The copilot was flying and configured the airplane about four miles out for landing on runway 24. The flightcrew received progressive wind information during the approach; the last report was wind at 310° and 25 knots. The approach speed was v ref + 10. According to the flightcrew, during the landing flare a wind gust occurred, and the airplane lifted in a nose down attitude. The gust stopped and then the airplane descended to the runway and landed hard. The examination of the airplane revealed the fuselage cracked near where the wings were attached and the aft fuselage was bent down about 7°. Two passengers were seriously injured.

Flight departed and upon reaching a point approx 35 miles north of airport pilot requested return to airport from ATC. Pilot did not declare emergency or report an engine problem. Upon entering traffic pattern at uncontrolled airport pilot stated he would follow a Cessna 152 for landing. On short final aircraft was seen making s turns to maintain spacing behind 152. Pilot then declared he had an engine shutdown and needed to land. 152 was in landing flare and landed. With 152 on runway pilot attempted a go around with full flaps extended, gear down, left engine shutdown, and at a slow airspeed. Aircraft rolled to left upon application of right engine power and nosed down from which it crashed. The number two cylinder of the left engine had suffered separation of the head from the barrel. Pilot logbook did not reflect pilot having current biennial flight review. The pilot, sole on board, was killed.

After landing at Corumbá Airport, the twin engine was unable to stop within the remaining distance, overran and came to rest in a grove. There were no casualties. Apparently, the crew got lost en route after the navigation system failed. As the aircraft was short of fuel, the crew diverted to Corumbá Airport for an emergency landing.

On approach to Cumaná-Antonio Jose de Sucre Airport, the twin engine aircraft crashed 8 km short of runway. One passenger was seriously injured while five other occupants were killed, among them German tourists.

The pilot, sole on board, was completing a positioning flight from Nairobi to Shinyanga. On approach to Shinyanga-Ibadakuli Airport, he encountered poor visibility when the twin engine aircraft landed on the left side of the runway. It collided with edge marker, lost its nose gear and came to rest with its both propellers damaged. The pilot escaped uninjured and the aircraft was damaged beyond repair.

On IFR arrival, flight 4821 was cleared to intersection 17 northeast of airport at 6,000 feet, then for ILS runway 23 approach. Radar service was terminated 6.5 east of intersection. Radar data showed that flight crossed and then bracketed localizer. Flight intercepted glide slope from below about 7 miles outside of outer marker and thence deviated above glide slope. About 2 miles outside of marker, flight was at a full fly down deflection when it entered a descent varying from 1,200 to 2,000 fpm. Aircraft struck wooded mountain top 2.0 miles inside of outer marker (3.9 miles from runway) at elevation of 2,280 feet. Minimum altitude at marker was 3,600 feet. Glide slope elevation at point of impact was approximately 2,900 feet. Evidence was found of inadequate electrical ground path between radome and fuselage which, when combined with existing weather conditions, may have produced electrostatic discharge (precipitation static). Although post-accident tests were not conclusive, the safety board believes that the glide slope indications might have been unreliable due to precipitation static interference. Two occupants survived while two others (one pilot and one passenger) were killed.

The twin engine aircraft was completing a special flight from Dushanbe to Lyakhsh on behalf of the Tajik Civil Aviation Department. For unknown reasons, the crew continued the approach at an insufficient altitude when the unstabilized aircraft struck the ground 210 metres short of runway and 50 metres to the right of its extended centerline. On impact, the undercarriage were torn off and the aircraft came to rest. All 13 occupants escaped uninjured while the aircraft was damaged beyond repair.

Pilot was cleared for an ILS approach at his destination, and requested to report altitude of 3,000 feet on the approach. This was the last radio transmission received from the pilot. Aircraft was found in soft field six miles from the airport. Landing gear was up, flaps were down. Fisherman nearby reported hearing the aircraft maneuvering at low altitude. He reported that the engines sounded fine, but the sound was changing in pitch and intensity. He reported that got quiet just a few seconds before he heard the impact. The investigation revealed that there was evidence of a fire in the nose baggage compartment. The cabin heater is located in the nose baggage compartment, and had a recent history of discrepancies. The pilot, sole on board, was killed.

For unknown reasons, the three engine aircraft landed hard on its nose, causing the nose gear to collapse. There were no casualties but the aircraft was damaged beyond repair. The exact date of the mishap remains unknown, somewhere in 1991.

The pilot was on a personal trip that he had flown many times. On the day of the accident, additional fuel was not available at the departure airport. As he neared his destination, the pilot left one of his engines in a fuel crossfeed configuration causing a partial power loss. The airplane has the capability to climb at more than 500 feet per minute using only one engine. After declaring his emergency to the control tower, radio contact was lost. The aircraft was observed flying 90° to the ILS final approach course at very low altitude banking side to side. The airplane crashed in a 70° nose down position. Heavy snow had started falling just before the accident. A post crash fire destroyed much of the airplane. Both occupants were killed.