Service difficulty report · Fire Detector · Boeing 7377H4

Difficulty date
July 24, 2026
Submitted
July 29, 2026
Operation
Air carrier
Aircraft
N901WN
Make and model
Boeing 7377H4
Aircraft serial
32545
Aircraft time
60,427 hours, 35,273 cycles
Part
Fire Detector
Part number
902864
Part serial
6777
Condition
Illuminated
Location
Zone 400
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

#2 ENGINE OVERHEAT LIGHT ILLUMINATED ON START_ REMOVED AND REPLACED NR 2 ENGINE FAN UPPER DETECTOR FIRE DETECTOR IAW AMM 26-11-01. PREFORMED NR 2 ENGINE IDLE RUN ENGINE RUN GOOD, NO FAULTS OR INDICATIONS FOUND. ENGINE RUN NORMAL IAW AMM 71-00-00.

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