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 3R FWD EMERGENCY POWER SUPPLY M33404 BATTERY PACK FOUND LOW CAPACITY REF TO HAECO NON-ROUTINE NO.9450774, ORIGINATED BY EMP V903218, 86-3350-1-0002. PERFORMED BY EMP V903218 AND IDT BY EMP V903670 - REPLACED M/D 3 REV 102 R FWD EMERGENCY POWER SUPPLY M33404 BATTERY PACK AND C/O NEW BAT TERY PACK INSTALLATION TEST & CAPACITY CHECK. THE TEST RESULT FO UND NORMAL AS PER AMM 33-51-06-200-801 & AMM 33-51-06-960-802