Service difficulty report · Battery Pack · Boeing 737824

Difficulty date
December 20, 2025
Submitted
December 23, 2025
Operation
Air carrier
Aircraft
N73275
Make and model
Boeing 737824
Aircraft serial
31593
Aircraft time
74,178 hours, 26,586 cycles
Part
Battery Pack
Part number
ADD71701100
Condition
Inoperative
Location
Zone 200
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

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

What was found

RIGHT EXTERIOR EMERGENCY LIGHT INOPERATIVE. ATTEMPTED TO REMOVE COVER BUT 2 NUT PLATES WERE BROKEN IN THE BACK. COMPLETED UP TO STEP 5 OF THE RH AFT EMERGENCY WING LIGHT ASSEMBLY REF AMM 33-51-04-960-802. COMPLETED LIGHT ASSY INSTALL UP TO STEP G12 AMM 33-51-04-960-802. DURING OPS CK FOUND 3 OUTSIDE LIGHTS INOPERATIVE, DOOR 1L, RT AFT OVERWING EXIT & RT MID AFT WING SLIDE. REPLACED EMERGENCY LIGHT BATTERY PACK M1671, BOTH RH LIGHTS OPS NORMAL. IAW AMM 33-51-06 & WDM 33-51-11. RELAMPED EXTERIOR EMERGENCY LIGHT AT DOOR L1, NO GOOD. R & R BATTERY PACK AND POWER SUPPLY (M1675) IAW AMM 33-51-04, AMM 33-51-06. OPS CHECKED GOOD.