Service difficulty report · Battery Pack · Boeing 737924ER

Difficulty date
March 21, 2026
Submitted
March 23, 2026
Operation
Air carrier
Aircraft
N73445
Make and model
Boeing 737924ER
Aircraft serial
40000
Aircraft time
46,486 hours, 16,995 cycles
Part
Battery Pack
Part number
ADD71701100
Part serial
218116
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

L2 DOOR EMERGENCY LIGHT SIGNS INOP. REMOVE BATTERY PACK AND REPLACE BATTERY PACK WITH A NEW BATTERY PACK P/N AD-D717-01-100 S/N 37688 5 AT AFT GALLEY CEILING PANEL LT IAW AMM 33-51-06-960 -805, AND PERFORMED EMERGENCY LIGHTS OPS TEST IAW AMM 33-51-00-720-801.TEST IS GOOD AT L2 DOOR EMERGENCY LIGH T SIGN.