Thai Airways Flight 311
| Thai Airways Flight 311 | |
|---|---|
 The accident machine HS-TID |
|
| Accident summary | |
| Accident type | Controlled flight into terrain through navigation errors |
| place |
Langtang National Park , Nepal
|
| date | July 31, 1992 |
| Fatalities | 113 (all) |
| Survivors | 0 |
| Aircraft | |
| Aircraft type |
 Airbus A310-300
|
| operator |
 Thai Airways
|
| Mark |
HS-TID
|
| Surname | Buri Ram |
| Departure airport |
Don Mueang Airport , Thailand
|
| Destination airport |
Kathmandu Airport , Nepal
|
| Passengers | 99 |
| crew | 14th |
| Lists of aviation accidents | |
On July 31, 1992, an Airbus A310-300 crashed on Thai Airways flight 311 (flight number: TG311 ) approaching Kathmandu . All 113 occupants were killed in the crash.
It was the most casualty accident in Thai Airways history . At the time of the accident, it was the worst aircraft accident in Nepal, but was already outdone two months later by the crash of an Airbus A300 on Pakistan International Airlines Flight 268 .
plane
The aircraft ( registration number : HS-TID, c / n : 415) was equipped with two General Electric CF6-80C2A2 engines. She was baptized with the name Buri Ram and was 4 years and 10 months old at the time of the accident. The A310 was delivered to Wardair of Canada on October 2, 1987 . From January 15, 1990, the Airbus was in operation with Canadian Airlines , which Wardair had taken over the year before. On May 9, 1990 the machine went into operation at Thai Airways.
the accident
Thai Airways International's Airbus A310 took off at 10:30 a.m. local time (UTC + 7) from Don Mueang Airport on a scheduled flight to Kathmandu, where it was scheduled to land at 12:55 p.m. (UTC + 5:45). There were 113 people on board, 14 of whom were crew members. In the Nepalese airspace, the machine flew through a larger cloud cover.
In the first approach according to the VOR / DME procedure, the aircraft flew over the destination airport, as the landing flaps that are absolutely necessary for this airport had malfunctioned shortly before landing . The pilots reported to air traffic control that the flight had been diverted to Calcutta Airport . A moment later the landing flaps could be extended, but the plane had already flown over the airport. The captain made a right turn on the plane heading for the mountains north of Kathmandu. He took on a number of other tasks, such as communication with air traffic control, which is basically one of the tasks of pilot not flying . As a result of this poor crew resource management , there was a navigation error: The captain overlooked the fact that he had flown a 360-degree turn with the machine and was thus heading back towards the mountains. The first officer then tried in vain to enter a VOR point into the on-board computer, which the on-board computer did not accept because the machine had long since flown over it in its direction of flight. A minute later the Ground Proximity Warning System sounded , which the master dismissed as a false alarm. The plane crashed 16 seconds later on a mountain at an altitude of 3500 meters.
See also
Individual evidence
- ↑ a b c Accident report A310 HS-TID , Aviation Safety Network (English), accessed on March 6, 2019.
Coordinates: 28 ° 3 ′ 9 ″ N , 85 ° 27 ′ 3 ″ E