Service difficulty report · Battery Pack · Boeing 777223

Difficulty date
March 5, 2022
Submitted
March 9, 2022
Operation
Air carrier
Aircraft
N790AN
Make and model
Boeing 777223
Aircraft serial
30251
Aircraft time
80,746 hours, 10,476 cycles
Part
Battery Pack
Part number
ADD71701100
Part serial
253301
Condition
Discharged
Location
Zone 200 - Fuse
Stage of operation
IN
How discovered
V
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

AIRCRAFT IN BASE MAINTENANCE: EMERGENCY BATTERY PACK FAILED CAPACITY TEST, LEFT AND RIGHT PATH LIGHTING ROWS 1-5. REMOVED AND REPLACED BATTERY PACK M33094 (AALA202203083280), M33096 (AALA202203097525), AND M33098 LOCATED AT R1, R2 AND L2 DOORS PER BOEING AMM 33-51-06-802. OPERATIONS CHECKS GOOD.