Service difficulty report · Power Supply · Boeing 7377H4

Difficulty date
September 19, 2025
Submitted
September 30, 2025
Operation
Air carrier
Aircraft
N909WN
Make and model
Boeing 7377H4
Aircraft serial
32458
Aircraft time
56,758 hours, 34,420 cycles
Part
Power Supply
Condition
Inoperative
Location
Zone 200
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

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

What was found

FOUND EMERGENCY LIGHTS AT SEAT ROW LEFT 8 AND SEAT ROW LEFT 11 INOPERATIVE. INSTALLED POWER SUPPLY AND BATTERY PACK (M1670) AND PERFORMED GOOD OPS EMERGENCY LIGHT TEST IAW AMM 33-51-06-960-806.

More about the Boeing 737-7H4