Service difficulty report · Battery · Boeing 777222

Difficulty date
October 7, 2025
Submitted
October 7, 2025
Operation
Air carrier
Aircraft
N226UA
Make and model
Boeing 777222
Aircraft serial
30226
Aircraft time
91,950 hours, 10,760 cycles
Part
Battery
Part number
285W0955102
Part serial
D05831
Condition
Discharged
Location
R1 Epas
Part time
724,390 hours, 702,785 cycles
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

DOOR R1 EPAS BATTERY PACK DOESNT CONTINUOUSLY BLINK GREEN IN ARMED POSITION REPLACED DR R1 EPAS BATTERY PACK REF AMM 52-11-20. OPS CHK GOOD.PARTS USED: 26-5211-9-9003, QTY :1 ROTABLE PARTS CHG:TT # 1179479 SN OFF 5831 PN OFF 26-5211-9-9003.BATTERY, ASSY, OFF 26-5211-9-9003 5831 ON 26-5211-9-9003 2617 VERIFIED PACK CHANGE, TORQUE, PIN REMOVAL AND BUSTLE INSTALLATION