Service difficulty report · Battery Pack · Boeing 7377H4

Difficulty date
July 24, 2021
Submitted
July 30, 2021
Operation
Air carrier
Aircraft
N751SW
Make and model
Boeing 7377H4
Aircraft serial
29803
Aircraft time
74,739 hours, 44,231 cycles
Part
Battery Pack
Condition
Inoperative
Location
Emergency Lights
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

SEVERAL EMERGENCY LIGHTS INOP BY AFT ENTRY/SERVICE DOOR AREA. / [01] PERFORMED T/S PER B737 FIN 33-50 TASK 801 AND FOUND BATTERY PACK M1672 PART# D717-01-100; S/N: 5570 DEFECTIVE.; [02] VERIFIED; [03] REMOVED AND REPLACED BATTERY PACK AND CHARGER ASSY AS PER B737 AMM 33-51-06-960-806 AND 33-51-06-960-805. PERFORMED OPS CHECK. TEST OK.<BR>AAR TAG WN6141 FOR CHARGER ASSY <BR>AAR TAG A05070 FOR BATTERY PARK; [04] VERIFIED STEP 3

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