Boeing 747-400, 9M-MPL, 18 May 2006

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

• Category: Commercial - fixed wing
• Report type: Bulletin - Field investigation
• Date of occurrence: 18 May 2006
• Aircraft type: Boeing 747-400
• Location: Over the Thames Estuary, England
• Registration: 9M-MPL

Boeing 747-400, 9M-MPL

Summary:

A passenger saw what appeared to be small flames coming from between the No 1 engine exhaust shroud and its pylon; the flight crew were informed. The engine indications were normal; nevertheless, the commander decided to shut the engine down. The ‘flames’ continued until the aircraft was slowed for an approach. The aircraft landed uneventfully. Investigation revealed that a rubber seal had torn, and that when agitated by the air flow it gave the appearance of flames. There had been eleven previous events reported on similar aircraft. The aircraft manufacturer has identified an alternative seal and recommended that operators inspect the affected area on a periodic basis and replace damaged seals.

Download report:

Boeing 747-400, 9M-MPL 12-06.pdf (733.44 kb)

Published 10 December 2014