Accident Lockheed L-1011-385-3 TriStar 500 9Y-TGJ, Monday 9 March 1992
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Date:Monday 9 March 1992
Time:15:50
Type:Silhouette image of generic L101 model; specific model in this crash may look slightly different    
Lockheed L-1011-385-3 TriStar 500
Owner/operator:BWIA International
Registration: 9Y-TGJ
MSN: 1179
Year of manufacture:1979
Total airframe hrs:33556 hours
Engine model:Rolls-Royce RB211-524B4-02
Fatalities:Fatalities: 0 / Occupants: 186
Other fatalities:0
Aircraft damage: Substantial, repaired
Category:Accident
Location:near KIRN VOR -   Germany
Phase: En route
Nature:Passenger - Scheduled
Departure airport:Frankfurt International Airport (FRA/EDDF)
Destination airport:Saint Lucia-Hewanorra Airport (UVF/TLPL)
Investigating agency: AAIB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
Fifteen minutes after takeoff from Frankfurt Airport, while climbing through FL100 the translating cowl of the no. 1 engine thrust reverser became detached, struck the leading edge of the left horizontal stabiliser and fell to the ground. The commander subsequently shut down the engine and diverted to London Heathrow Airport where an uneventful overweight landing was made. The aircraft had had two previous malfunctions of the No 1 engine thrust reverser system.

CAUSES: (1) The ground engineer took actions which were not supported by his knowledge of the aircraft and, unrealised by him, were not mandated by the Master Minimum Equipment List.; (2) The ground engineer's supervisors failed to identify that an incorrect procedure had been followed although he had communicated his actions clearly to them.; (3) Damage became evident which was probably an indication of progressive cowl failure but it was not recognised as such."

Accident investigation:
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Investigating agency: AAIB
Report number: AAIB AAR 3/1993
Status: Investigation completed
Duration: 1 year and 2 months
Download report: Final report

Sources:


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