Service difficulty report · Battery Pack · Boeing 737824

Difficulty date
June 26, 2023
Submitted
June 28, 2023
Operation
Air carrier
Aircraft
N78501
Make and model
Boeing 737824
Aircraft serial
31602
Aircraft time
52,352 hours, 19,347 cycles
Part
Battery Pack
Part number
ADD71701100
Part serial
NA
Condition
Inoperative
Location
M1675
Stage of operation
CR
How discovered
V
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

EMERGENCY EXIT SIGN DOES NOT TURN OFF FORWARD GALLEY/LAV COMPLEX BOTH EMERG EXIT LIGHTS IN FWD GALLEY FLICKERED THROUGHOUT THE FLIGHT. THE FWD LEFT POWER SUPPLY AND BATTERY. PARTS USED: 29-3351-3-0031,QTY :1 REPLACED EMERGENCY LIGHT POWER SUPPLY (M1675) REF WDM 33-51-12-4 AND AMM 33-51-06-960-806 FOUND IT WAS NOT CHARGING BATTERY WAITING ON BATTERY BEING ROBBED FROM ANOTHER AIRCRAFT .BATTERY M&E PART NUMBER 99-3351-3-0015 NO PARTS DENVER. NOTE: THIS IS REPLACED M1675 BATTERY PACK. SYSTEM OPS CHECKS GOOD. REF AMM 33-51-06-960-805.