787 ELT Fire Caused by Improper Battery Wiring
AAIB develops five safety recommendations for the FAA focused on lithium battery technology.
The ELT fire began in the top of fuselage near the vertical stabilizer.
The ELT fire began in the top of fuselage near the vertical stabilizer.

The UK Air Accidents Investigation Branch (AAIB) investigation into the fire on board a Boeing 787 operated by Ethiopian Airlines at London Heathrow Airport on July 12, 2013, discovered improper wiring of the lithium metal battery that powered the aircraft’s Honeywell 406AFN fixed emergency locator transmitter (ELT). According to an AAIB special bulletin published last week, the investigation concluded that the battery had been incorrectly wired to the ELT during the manufacturing process.

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