Service difficulty report · Power Supply · Boeing 7377H4

Difficulty date
May 8, 2026
Submitted
May 12, 2026
Operation
Air carrier
Aircraft
N937WN
Make and model
Boeing 7377H4
Aircraft serial
36644
Aircraft time
55,013 hours, 33,658 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

AFT GALLEY EMERGENCY EXIT SIGNS INOPERATIVE. REMOVED AND REPLACED BATTERY POWER SUPPLY M1672 AND PERFORMED SATISFACTORY OPERATIONAL CHECK IAW AMM 33-51-06.

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