Unlawful Interference Boeing 737-2A8 VT-ECR, Thursday 26 April 1979
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Date:Thursday 26 April 1979
Type:Silhouette image of generic B732 model; specific model in this crash may look slightly different    
Boeing 737-2A8
Owner/operator:Indian Airlines
Registration: VT-ECR
MSN: 20962/380
Year of manufacture:1974
Engine model:Pratt & Whitney JT8D-9A
Fatalities:Fatalities: 0 / Occupants: 67
Other fatalities:0
Aircraft damage: Destroyed, written off
Category:Unlawful Interference
Location:Madras Airport (MAA) -   India
Phase: Landing
Nature:Passenger - Scheduled
Departure airport:Trivandrum Airport (TRV/VOTV)
Destination airport:Madras Airport (MAA/VOMM)
Confidence Rating: Accident investigation report completed and information captured
On its way from Trivandrum to Madras, the aircraft was cleared to descent from FL270. Shortly afterwards an explosion took place in the forward lavatory, causing a complete instrument and electrical failure.
The Boeing had to make a flapless landing at Madras (now Chennai). The aircraft touched down 2500 feet past the runway 25 threshold and overran. The right side of the plane caught fire.

PROBABLE CAUSE: "Detonation of an explosive device in the forward lavatory of the aircraft. The aircraft overshot the runway due to high speed of touchdown, non-availability of reverse thrust and anti-skid system due to systems failure consequent on explosion."


Aircraft hijackings and other criminal acts against civil aviation : statistics and narrative reports / FAA
Civil aircraft accidents 1979 / Ministry of Tourism and Civil Aviation, CAD, ASD


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