Service difficulty report · Battery · Boeing 777223

Difficulty date
June 8, 2021
Submitted
June 9, 2021
Operation
Air carrier
Aircraft
N790AN
Make and model
Boeing 777223
Aircraft serial
30251
Aircraft time
78,227 hours, 10,059 cycles
Part
Battery
Condition
Inoperative
Location
Door Assist Sys
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 NOT GROUNDED: FOUND EMERGENCY POWER ASSIST SYTEM LIGHT AT DOOR 1L NOT FLASHING. REPLACED BOTH 9 VOLT BATTERIES PER AMM 52-11-20.