Service difficulty report · Battery Pack · Boeing 7377H4

Difficulty date
May 24, 2023
Submitted
June 1, 2023
Operation
Air carrier
Aircraft
N961WN
Make and model
Boeing 7377H4
Aircraft serial
36962
Aircraft time
37,902 hours, 23,158 cycles
Part
Battery Pack
Condition
Inoperative
Location
Zn 200 Fus Top
Stage of operation
IN
How discovered
9
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 EXIT LIGHTS ASSOCIATED WITH BATTERY PACK M1674 ARE INOP<[01] REPLACED BATTERY PACK M1674 EMERGENCY EXIT LIGHTS AND GOOD FUNCTIONAL TEST PER 33-51-00-710-801;[02] UPDATED PART USED ON ACTION 1;[03] VERIFIED ACTION 4;[04] VERIFIED CORRECTIVE ACTION 3

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