Narrative:
The Boeing 747, named "Emperor Vikramaditya", touched down at Delhi-Indira Gandhi International Airport after a flight from London-Heathrow. On application of reverse thrust, a failure of the no. 1 engine pylon to wing attachment caused this engine to tilt nose down. Hot exhaustion gasses caused a fire on the left wing. The aircraft was damaged beyond repair.
PROBABLE CAUSE: "The accident was caused due to the migration of the improperly installed diagonal-brace aft fuse-pin of the No.1 engine from its fitting which substantially reduced the load carrying capability of the engine fittings resulting in failure of the upper-link forward fuse pin due to excessive loads on account of probably improper landing leading to a partial separation of engine and fire."
Normal landing
» Civil aviation aircraft accident summary for the year 1990 (DGAC India)
accident date: 07-05-1990
type: Boeing 747-237B
registration: VT-EBO
| Status: | Accident investigation report completed and information captured |
| Date: | Monday 7 May 1990 |
| Time: | 09:17 |
| Type: |  Boeing 747-237B |
| Operator: | Air-India |
| Registration: | VT-EBO |
| MSN: | 20558/188 |
| First flight: | 1972-04-14 (18 years ) |
| Engines: | 4 Pratt & Whitney JT9D-7J |
| Crew: | Fatalities: 0 / Occupants: 20 |
| Passengers: | Fatalities: 0 / Occupants: 195 |
| Total: | Fatalities: 0 / Occupants: 215 |
| Aircraft damage: | Damaged beyond repair |
| Location: | Delhi-Indira Gandhi International Airport (DEL) ( India)
|
| Phase: | Landing (LDG) |
| Nature: | International Scheduled Passenger |
| Departure airport: | London-Heathrow Airport (LHR/EGLL), United Kingdom |
| Delhi-Indira Gandhi International Airport (DEL/VIDP), India | |
| Flightnumber: | AI132 |
The Boeing 747, named "Emperor Vikramaditya", touched down at Delhi-Indira Gandhi International Airport after a flight from London-Heathrow. On application of reverse thrust, a failure of the no. 1 engine pylon to wing attachment caused this engine to tilt nose down. Hot exhaustion gasses caused a fire on the left wing. The aircraft was damaged beyond repair.
Probable Cause:
PROBABLE CAUSE: "The accident was caused due to the migration of the improperly installed diagonal-brace aft fuse-pin of the No.1 engine from its fitting which substantially reduced the load carrying capability of the engine fittings resulting in failure of the upper-link forward fuse pin due to excessive loads on account of probably improper landing leading to a partial separation of engine and fire."
Classification:
Engine separationNormal landing
Sources:
» NTSB/SIR-94/02 (p. 16)» Civil aviation aircraft accident summary for the year 1990 (DGAC India)
Photos
accident date: 07-05-1990
type: Boeing 747-237B
registration: VT-EBO
Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from London-Heathrow Airport to Delhi-Indira Gandhi International Airport as the crow flies is 6682 km (4176 miles).
Distance from London-Heathrow Airport to Delhi-Indira Gandhi International Airport as the crow flies is 6682 km (4176 miles).
This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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