Service difficulty report · Battery · Boeing 777223

Difficulty date
December 29, 2020
Submitted
December 30, 2020
Operation
Air carrier
Aircraft
N774AN
Make and model
Boeing 777223
Aircraft serial
29581
Aircraft time
85,720 hours, 10,578 cycles
Part
Battery
Part number
MN1604
Condition
Inoperative
Location
Door Light
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 WAS NOT GROUNDED. L3 DOOR EMERGENCY POWER ASSIST SYSTEM DOOR LIGHT INOPERATIVE. REPLACED 9-VOLT BATTERIES ON L3 DOOR EMERGENCY POWER ASSIST SYSTEM UNIT.