Service difficulty report · Battery Pack · Boeing 7378H4

Difficulty date
October 22, 2025
Submitted
October 31, 2025
Operation
Air carrier
Aircraft
N8529Z
Make and model
Boeing 7378H4
Aircraft serial
36974
Aircraft time
28,415 hours, 14,247 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

FWD LEFT OUTSIDE OVERWING EMERGENCY LIGHT INOPERATIVE. REMOVED AND REPLACED EMERGENCY BATTERY PACK AND PERFORMED GOOD OPS CHECK IAW AMM 33-51-06-960-805. REMOVED AND REPLACED 1 EA FWD LEFT OUTSIDE OWE LIGHT ASSEMBLY CONTACT PN 81114-17201 IAW AMM 33-51-04-960-801 AND SRM 51-40-02.

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