Service difficulty report · Battery · Boeing 777222

Difficulty date
June 14, 2023
Submitted
June 22, 2023
Operation
Air carrier
Aircraft
N222UA
Make and model
Boeing 777222
Aircraft serial
30553
Aircraft time
83,783 hours, 10,426 cycles
Part
Battery
Part number
ADD71701100
Part serial
205724
Condition
Failed
Location
R3 Door
Stage of operation
IN
How discovered
C
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

FOUND R3 DOOR SECTIONS OF EMERGENCY LIGHTS INOP - ORIGINATED BY EMP V916788 ON HAECO NR 9461070, SUPPORT TASK. PERFORMED BY EMP V903179, IDT BY V903189. PERFORMED T/S FOUND M3 3405 POWER SUPPLY BATTERY PACK FAILED, REPLACED THE BATTERY PACK AND PERFORMED OP TEST FOUND NORMAL, REFER AMM 33-51-06-960-802 REV 98. IDT BY V903189.