Narrative:The Indian Airlines aircraft lifted off from runway 09, but the leading edge devices did not deploy and as a result the aircraft became aerodynamically unstable. The take-off was aborted and the aircraft was flared for a belly landing with undercarriage retracted. The aircraft belly-landed in nose up, left wing low attitude, on the centre line of the runway. It slid for 3080 feet, hit a boundary fence, crossed a drain and ploughed in rough terrain negotiating with small boulders and came to rest. Fire broke out on impact. The aircraft was completely destroyed by fire. Three persons cutting grass near the boundary fence of the airport were killed.
|Date:||17 DEC 1978|
|C/n / msn:|| 20485/277|
|First flight:|| 1971-02-25 (7 years 10 months)|
|Engines:|| 2 Pratt & Whitney JT8D-9A|
|Crew:||Fatalities: 0 / Occupants: 6|
|Passengers:||Fatalities: 1 / Occupants: 126|
|Total:||Fatalities: 1 / Occupants: 132 |
|Ground casualties:||Fatalities: 3|
|Airplane damage:|| Written off|
|Airplane fate:|| Written off (damaged beyond repair)|
|Location:||Hyderabad-Begumpet Airport (HYD) (India)
|Phase:|| Takeoff (TOF)|
|Nature:||Domestic Scheduled Passenger|
|Departure airport:||Hyderabad-Begumpet Airport (HYD/VOHY), India|
PROBABLE CAUSE: Non-availability of leading edge devices immediately after rotation during take-off.
» A Benefit Analysis for Cabin Water Spray Systems and Enhanced Fuselage Burnthrough Protection (CAA PAPER 2002/04)
This information is not presented as the Flight Safety Foundation or the Aviation Safety Networkĺs opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.