Service difficulty report · Battery · Boeing 777224

Difficulty date
December 17, 2024
Submitted
December 20, 2024
Operation
Air carrier
Aircraft
N78001
Make and model
Boeing 777224
Aircraft serial
27577
Aircraft time
119,809 hours, 12,483 cycles
Part
Battery
Part number
ADD71701100
Condition
Discharged
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

CABIN FOOR L1 EMERGENCY LIGHTING BATTERY PACK M33424 TEST FAIL REFER HX NR WO.4074784 AND ORIGINAL BY V896958 CABIN DOOR L1 EMERGENCY LIGHTING BATTERY PACK M33424 REPLACED AN D INSTALLATION CHECK AS PER AMM 33-51-06 TEST OK WORK ACCOMPLISH ED BY MECH V915455 AND INSPECTED BY V896992