Service difficulty report · Battery · Boeing 7377H4

Difficulty date
March 10, 2020
Submitted
March 11, 2020
Operation
Air carrier
Aircraft
N441WN
Make and model
Boeing 7377H4
Aircraft serial
29837
Aircraft time
57,960 hours, 34,136 cycles
Part
Battery
Part number
33500005
Condition
Failed
Location
Cabin
Stage of operation
IN
How discovered
C
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

PASSENGER CABIN, FOUR EMERGENCY LIGHTING BATTERY PACKS FAILED CAPACITY TEST. R & R PASSENGER CABIN, FOUR EMERGENCY LIGHTING BATTERY PACKS (M01670, M01672, M01673 & M01675), PER AMM 33-51-06 & DWG# 33500005.

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