Service difficulty report · Battery · Boeing 777222

Difficulty date
December 23, 2024
Submitted
December 24, 2024
Operation
Air carrier
Aircraft
N799UA
Make and model
Boeing 777222
Aircraft serial
26926
Aircraft time
107,538 hours, 14,204 cycles
Part
Battery
Part number
ADD71701100
Condition
No Test
Location
Zone 200
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

M/D R4 DOOR AFT EMERGENCY POWER SUPPLY M33409 BATTERY PACK FOUND LOW CAPACITY,ORIGINATED BY EMP V903218,REF TO HAECO NON ROUTINE NO.9450808,86-3350-1-0002. PERFORMED BY EMP V903218,REPLACED M/D R4 DOOR AFT EMERGENCY POWE V903670. R SUPPLY M33409 BATTERY PACK AND C/O NEW BATTERY PACK INSTALLATI ON TEST & CAPACITY CHECK,THE TEST RESULT FOUND NORMAL AS PER AMM 33-51-06-960-802 & AMM 33-51-06-200-801 REV 102,IDT BY EMP