Service difficulty report · Battery Pack · Boeing 7377BD

Difficulty date
March 29, 2020
Submitted
April 2, 2020
Operation
Air carrier
Aircraft
N7721E
Make and model
Boeing 7377BD
Aircraft serial
34479
Aircraft time
48,341 hours, 24,824 cycles
Part
Battery Pack
Condition
Discharged
Location
Cabin
Stage of operation
UK
How discovered
O
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

SEVERAL EMERGENCY LIGHTS IN CABIN ON RT SIDE NEAR OVERWING EXIT FLASH AND THEN GO OUT WHEN EMERGENCY LIGHTS ARE TURNED ON / REMOVED & REPLACED EMERGENCY LIGHTS BATTERY PACK M1669 AT STA 603 WL 212 RBL 67 IAW AMM 33-51-06

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