Service difficulty report · Battery Pack · Boeing 777222

Difficulty date
September 24, 2021
Submitted
September 27, 2021
Operation
Air carrier
Aircraft
N780UA
Make and model
Boeing 777222
Aircraft serial
26944
Aircraft time
94,114 hours, 16,540 cycles
Part
Battery Pack
Part number
ADD71701100
Part serial
109413
Condition
Discharged
Location
Emergency Lights
Stage of operation
IN
How discovered
9
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 1L M33093 EMERGENCY POWER SUPPLY BATTERY PACK FOUND LOW CAP ACITY - REF HAECO NON-ROUTINE NO.9456181, SPEC NO.B777-33-3-7015 - ORIGINATED BY EMP V905495 PERFORMED BY EMP V905495, IDT BY HAECO TA409, REPLACED DOOR 1L M33093 EMERGENCY POWER SUPPLY BATTERY PACK AND PERFORMED TEST OF NEW BATTERY PACK AS PER AMM 33-51-06-960-802 REV.92A, TEST RESUL T NORMAL