Service difficulty report · Relay · Boeing 747422

Difficulty date
June 1, 2012
Submitted
July 3, 2012
Operation
Air carrier
Aircraft
N127UA
Make and model
Boeing 747422
Aircraft serial
28813
Aircraft time
51,194 hours, 6,038 cycles
Engine
Pwa PW4056
Part
Relay
Condition
Malfunctioned
Location
Smoke Detector
Stage of operation
NR
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 DOOR 5 REST' EICAS CAUTION MESSAGE DISPLAYED. DETECTED IN CREW REST DOOR 5. REPETITIVE WRITEUP, FAULT CODE. REPLACED R8132 RELAY IAW FIM26-14 T806. ACCOMPLISHED TEST. TEST PASSED. NO CAUTION MESSAGE. ALSO, NO ACTUAL SMOKE REPORT RECEIVED FROM INBOUND CREW.