Service difficulty report · Power Supply · Boeing 777222

Difficulty date
December 30, 2024
Submitted
December 30, 2024
Operation
Air carrier
Aircraft
N229UA
Make and model
Boeing 777222
Aircraft serial
30557
Aircraft time
89,792 hours, 10,540 cycles
Part
Power Supply
Part number
ADD71702001
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

LLAR BATTERY PACK M023 DEEP CYCLE TEST FAILED. EMER POWER SUPPLY M023 REPLACED AND TESTED FND NORMAL AS PE R AMM 33-51-06 ATTACHED FORM 44-0008 ITEM 1-2.