Service difficulty report · Battery Pack · Boeing 7377H4

Difficulty date
November 29, 2021
Submitted
December 8, 2021
Operation
Air carrier
Aircraft
N236WN
Make and model
Boeing 7377H4
Aircraft serial
34631
Aircraft time
52,674 hours, 31,240 cycles
Part
Battery Pack
Condition
Inoperative
Location
Cabin
Stage of operation
UK
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 DON'T COME ON ON 2LH; 6LH; 6RH; 9 RH; AND 11RH SEATS. ; / [01] PERFORMED T/S AS PER B737 WDM 33-51-11; WDM 33-51-12 AND WDM 33-51-13; FOUND BATTERY PACKS AT POSITIONS M1674 AND M1668 DEFECTIVE.; [02] VERIFIED 1;COMPLETE; [03] REMOVED AND REPLACED BATTERY PACK M1674; AS PER B737 AMM 33-51-06-960-805; AND PERFORMED OPS CHECK ON ROWS 2LH; 6LH; 6RH; 9RH AND 11RH; TESTS FOUND NORMAL.; [04] VERIFIED STEP 3

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