Service difficulty report · Battery Pack · Boeing 777223

Difficulty date
August 17, 2020
Submitted
August 20, 2020
Operation
Air carrier
Aircraft
N768AA
Make and model
Boeing 777223
Aircraft serial
33540
Aircraft time
55,623 hours, 6,636 cycles
Part
Battery Pack
Part number
285W0955102
Part serial
D02085
Condition
Inoperative
Location
Zone 800 - Doors
Stage of operation
IN
How discovered
C
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 WAS GROUNDED: 4R DOOR EMERGENCY POWER ASSIST SYSTEM DOES NOT FLASH GREEN WHEN ARMED. REMOVED AND REPLACED EMERGENCY POWER ASSIST SYSTEM BATTERY PACK PER AMM 52-11-20-805-002. ALSO REPLACED TWO EMERGENCY ASSIST 9V BATTERIES (AALA202008209001) PER AMM 52-11-20.