Service difficulty report · Battery Pack · Boeing 777223

Difficulty date
November 3, 2022
Submitted
November 4, 2022
Operation
Air carrier
Aircraft
N785AN
Make and model
Boeing 777223
Aircraft serial
30005
Aircraft time
82,931 hours, 10,312 cycles
Part
Battery Pack
Part number
285W0955102
Part serial
D01576
Condition
Inoperative
Location
Door Assist
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

AIRCRAFT IN BASE MAINTENANCE: R4 DOOR EMERGENCY POWER ASSIST SYSTEM (EPAS) BATTERY PACK FAILED OPERATIONAL CHECK, INOPERATIVE. REPLACED BATTERY PACK AND ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK PER AMM 52-11-20.