Service difficulty report · Battery Pack · Boeing 7378H4

Difficulty date
July 26, 2026
Submitted
August 4, 2026
Operation
Air carrier
Aircraft
N8501V
Make and model
Boeing 7378H4
Aircraft serial
41530
Aircraft time
32,611 hours, 16,351 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 ATTACHED TO M1671 DO NOT OPERATE. POWER SUPPLY AND BATTERY PACK M1671 WAS REPLACED AND A GOOD FUNCTIONAL TEST OF ALL ASSOCIATED EMERGENCY LIGHTS WAS PERFORMED IAW AMM 33-51-06-960-805 & AMM 33-51-06-960-806.

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