Boeing 747-436, G-BNLV, 22 August 2013

• From: Air Accidents Investigation Branch
• Published: 10 December 2014

• Category: Commercial - fixed wing
• Report type: Bulletin - Correspondence investigation
• Date of occurrence: 22 August 2013
• Aircraft type: Boeing 747-436
• Location: London Heathrow Airport
• Registration: G-BNLV

Boeing 747-436, G-BNLV

Summary:

Shortly after the APU was started on the ground, the APU starter motor suffered a catastrophic failure causing it to shear from its gearbox mounting flange. The failure allowed hot oil to be released; the oil ignited and caused a fire in the APU bay. The flight crew shut down the APU, discharged the fire extinguisher bottle and ordered a precautionary passenger disembarkation.

Download report:

Boeing 747-436, G-BNLV 05-14.pdf (152.99 kb)

Published 10 December 2014