Service difficulty report · Battery Pack · Boeing 777323

Difficulty date
April 13, 2022
Submitted
April 18, 2022
Operation
Air carrier
Aircraft
N726AN
Make and model
Boeing 777323
Aircraft serial
31550
Aircraft time
33,980 hours, 3,951 cycles
Part
Battery Pack
Part number
BPAS105
Condition
Failed
Location
Zone 800 - Doors
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: L3 ENTRY DOOR EMERGENCY POWER ASSIST SYSTEM BATTERY, TEST FAILED. REMOVED AND REPLACED EMERGENCY POWER ASSIST SYSTEM BATTERY PACK, OPERATIONS CHECK GOOD PER B777-3 AMM 52-12-20.