Service difficulty report · Battery · Boeing 777224

Difficulty date
July 12, 2021
Submitted
July 14, 2021
Operation
Air carrier
Aircraft
N76010
Make and model
Boeing 777224
Aircraft serial
29480
Aircraft time
105,585 hours, 10,667 cycles
Part
Battery
Part number
D71701100
Part serial
220440
Condition
No Test
Location
Emergency Lights
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

EMERGENCY POWER SUPPLY M33408 BATTERY FOUND MALFUNCTION. EMERGENCY LIG HT POWER SUPPLY M33408 BATTERY REPLACED AND OPERATIONAL TEST CAR RIED OUT,FOUND NORMAL, AS PER AMM 33-51-06-960-802 REV 92.