Service difficulty report · Battery Pack · Boeing 777224

Difficulty date
October 5, 2021
Submitted
October 6, 2021
Operation
Air carrier
Aircraft
N77022
Make and model
Boeing 777224
Aircraft serial
39777
Aircraft time
52,046 hours, 4,953 cycles
Part
Battery Pack
Part number
D71701100
Part serial
75490
Condition
Discharged
Location
Door / R-2
Stage of operation
IN
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

DOOR R2 EMERGENCY POWER SUPPLY BATTERY PACK M330898 CAPACITY CHE CK FOUND FAILED,REFER HAECO NON-ROUTINE LP:9455160,ORIGINATED BY EMP V905359,SPEC NO.B777-33-3-7019. PERFORMED BY EMP V903672,ORIGINATED BY EMP V903672,REPLACED DOOR R2 PACK M33098 AND PERFORMED OPERATIONAL TEST OF THE NEW BATTER Y PACK,THE RESULT WAS NORMAL PER AMM 33-51-06-960-802 REV 92A.