Service difficulty report · Smoke Detector · Boeing 747422

Difficulty date
December 20, 2008
Submitted
December 23, 2008
Operation
Air carrier
Aircraft
N198UA
Make and model
Boeing 747422
Aircraft serial
28716
Aircraft time
47,016 hours, 5,638 cycles
Engine
Pwa PW4056
Part
Smoke Detector
Part number
2156556HS
Condition
Shorted
Location
Crew Rest Area
Stage of operation
CR
How discovered
O
Nature of condition
W
Precautionary procedure
O

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

What was found

SMOKE DETECTOR PROBLEM. FLIGHT DIVERTED. FOUND DETECTOR 1A SHORTED. REPLACED DETECTOR. OPERATIONAL TESTED GOOD.