Service difficulty report · Battery Pack · Boeing 7377H4

Difficulty date
July 4, 2023
Submitted
July 11, 2023
Operation
Air carrier
Aircraft
N417WN
Make and model
Boeing 7377H4
Aircraft serial
29822
Aircraft time
71,145 hours, 42,399 cycles
Part
Battery Pack
Part number
UNKNOWN
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 LIGHTS ASSOCIATED WITH BATTERY PACK M1670 ARE INOP<[01] COMPLETED STEP 1.;[02] REPLACED M1670 EMERGENCY LIGHTS BATTERY AND TESTED PER AMM 33-51-06-960-805; NO DEFECTS NOTED.;[03] VERIFIED CORRECTIVE ACTION 2; AND STEP 1.;[04] MAINTENANCE COMPLETE; DEFECT READY TO CLOSE.

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