Service difficulty report · Smoke Detector · Boeing 777224

Difficulty date
February 25, 2025
Submitted
February 27, 2025
Operation
Air carrier
Aircraft
N77022
Make and model
Boeing 777224
Aircraft serial
39777
Aircraft time
66,466 hours, 6,651 cycles
Part
Smoke Detector
Part number
4755712
Condition
Faulty
Location
Zone 200
Stage of operation
NR
How discovered
O
Nature of condition
B
Precautionary procedure
O

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

What was found

SMOKE REST UPR DR 3 EICA S MSG. CREW RPTS NO SMOK E BUT ELECTRIC AL ODOR. SMOKE ODUR CONDITIONAL INSPECTION CARRIED OUT AS PER AMM 05-51-58-800-801-C3. AIR CONDITIONING AND.OHAR HEATERS RAN FOR APROXIMATELY 30 MINS, UNABLE TO REPLICATE BURNING SMELL. SMOKE/ODOR FORM GIVEN TO CREW TO COMPLETE BY TOMC. DUE TO HISTORY OF OHAR SMOKE DETECTOR FAULTS OHAR SMOKE DECTECTORS DEACTIVATED AND DEFERRED INOP AS PER MEL 2614AE. ALSO SEE LOGPAGE 3985863 FOR OHAR DEACTIVATION. OFAR DEACTIVATED CLOSED DEFERRED AS PER MEL. REPLACED ALL 8 OFAR SMOKE DETECTORS, PER TASK 26-15-41-400-802, AND ACCOMPLISHED ALL TESTS. GROUND TEST PASSED. ACFT RETURNED TO NORMAL.