Service difficulty report · Battery · 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
Part number
MN1604
Condition
Inoperative
Location
Door Assist
Stage of operation
IN
How discovered
9
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 TWO EMERGENCY ASSIST 9V BATTERYS PER AMM 52-11-20. ALSO REPLACED EMERGENCY POWER ASSIST SYSTEM BATTERY PACK PER AMM 52-11-20-805-002.