Service difficulty report · Battery Pack · Boeing 7378H4

Difficulty date
August 31, 2026
Submitted
September 8, 2026
Operation
Air carrier
Aircraft
N8541W
Make and model
Boeing 7378H4
Aircraft serial
63599
Aircraft time
30,345 hours, 15,369 cycles
Part
Battery Pack
Condition
Inoperative
Location
Zone 200
Stage of operation
IN
How discovered
V
Nature of condition
O
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 ASSOCIATED WITH BATTERY PACK M1695 ARE INOPERATIVE. REMOVED, REPLACED, & PERFORMED GOOD OPS TEST IAW AMM 33-51-06-960-805, UPDATED PARTS VERIFIED INSTALLATION OF DADO PANEL FOR ACCESS IAW AMM 21-23-03-400-802.

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