Service difficulty report · Battery Pack · Boeing 7378H4

Difficulty date
July 16, 2025
Submitted
July 17, 2025
Operation
Air carrier
Aircraft
N8541W
Make and model
Boeing 7378H4
Aircraft serial
63599
Aircraft time
26,531 hours, 13,390 cycles
Part
Battery Pack
Condition
Inoperative
Location
Zn 200 Fus Top
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

EMERGENCY LIGHTS ON ROW 6 - 14 OVERHEAD BINS INOPERATIVE. REMOVED AND REPLACED BATTERY PACK M1676 AND PERFORMED GOOD OPS CHECK IAW AMM 33-51-06. REMOVED AND REPLACED BATTERY PACK M1676 AND PERFORMED GOOD OPS CHECK IAW AMM 33-51-06.

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