Service difficulty report · Battery · Boeing 777223

Difficulty date
June 23, 2021
Submitted
June 24, 2021
Operation
Air carrier
Aircraft
N790AN
Make and model
Boeing 777223
Aircraft serial
30251
Aircraft time
78,394 hours, 10,085 cycles
Part
Battery
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: L3 AND L4 EMERGENCY POWER ASSIST SYSTEM BATTERIES GREEN LIGHT NOT BLINKING. REMOVED AND REPLACED DOOR EMERGENCY POWER ASSIST SYSTEM BATTERIES IAW AMM 52-11-20.