Boeing 747-436, G-BNLE, 22 November 2006

From:
Air Accidents Investigation Branch
Published
10 December 2014
Category:
Commercial - fixed wing
Report type:
Bulletin - Field investigation
Date of occurrence:
22 November 2006
Aircraft type:
Boeing 747-436
Location:
Stand 430, London Heathrow Airport
Registration:
G-BNLE

Boeing 747-436, G-BNLE

Summary:

The aircraft was parked on a remote stand situated to the east of Terminal 4. In preparation to disembark the passengers a self propelled passenger stair vehicle was positioned at the No.2 left aircraft door. Having positioned the stair head against the aircraft’s door sill the vehicle operative extended the vehicles hydraulically powered stabilisation jacks. As these jacks extended the stair height hydraulic jacks retracted allowing the lower forward edge of the stair head to descend into the honeycomb wing to fuselage fairing where it came to rest. An engineering examination found that there had been an electrical component failure.

Download report:

Boeing 747-436, G-BNLE 05-07.pdf (232.52 kb)

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Published 10 December 2014
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