Service difficulty report · Smoke Detector · Boeing 747422

Difficulty date
August 22, 2008
Submitted
August 26, 2008
Operation
Air carrier
Aircraft
N107UA
Make and model
Boeing 747422
Aircraft serial
26900
Aircraft time
41,554 hours, 5,069 cycles
Engine
Pwa PW4056
Part
Smoke Detector
Condition
Malfunctioned
Location
Crew Rest Area
Stage of operation
TX
How discovered
O
Nature of condition
N
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

SMOKE ALARM IN FLT ATT CREW REST AREA WENT OFF TWICE ON TAXI IN. ALSO LOUD NOISE HEARD BENEATH 5L- :DOOR 5 SMOKE DETECT C/B CYCLED, SYS RESET, ALL OPS NORMAL. UNABLE TO REPRODUCE LOUD NOISE UNDER 5 L.