Service difficulty report · Battery Pack · Boeing 7378H4

Difficulty date
October 29, 2025
Submitted
October 31, 2025
Operation
Air carrier
Aircraft
N8529Z
Make and model
Boeing 7378H4
Aircraft serial
36974
Aircraft time
28,416 hours, 14,248 cycles
Part
Battery Pack
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 L/H CABIN EMERGENCY LIGHTS INOP FROM LEFT OVERWING EXIT TO AFT CABIN. REMOVED AND REPLACED EMERGENCY BATTERY PACK AND PERFORMED GOOD OPS CHECK IAW AMM 33-51-06-960-805.

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