Service difficulty report · Battery Pack · Boeing 777224

Difficulty date
July 12, 2025
Submitted
July 16, 2025
Operation
Air carrier
Aircraft
N78013
Make and model
Boeing 777224
Aircraft serial
29861
Aircraft time
120,605 hours, 12,501 cycles
Part
Battery Pack
Part number
285W0955102
Part serial
D03180
Condition
Inoperative
Location
Zone 800 Epas
Part time
787,942 hours, 716,286 cycles
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

DOOR 2R EMERGENCY POWER ASSIST SYSTEM BATTERY INOP. REMOVED AND REPLACED DR 2R EPAS BATTERY OPS CHECK GOOD REF. AMM 52-11-20.