Service difficulty report · Battery Pack · Boeing 7377K5

Difficulty date
August 8, 2026
Submitted
August 14, 2026
Operation
Air carrier
Aircraft
N7880D
Make and model
Boeing 7377K5
Aircraft serial
34693
Aircraft time
51,573 hours, 36,740 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 LIGHT ROW 23 ABC ON BIN BULLNOSE NOT WORKING. REPLACED BATTERY PACK M1673 IAW AMM 33-51-06-960-805 AND PERFORMED CHECK OF EMERGENCY LIGHT ROW 23 ABC ON BIN BULLNOSE WORKING IAW AMM 33-51-00-710-801. EMERGENCY LIGHTS OPS TESTED OK.

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