Service difficulty report · Battery Pack · Boeing 777223

Difficulty date
April 1, 2021
Submitted
April 5, 2021
Operation
Air carrier
Aircraft
N768AA
Make and model
Boeing 777223
Aircraft serial
33540
Aircraft time
55,625 hours, 6,637 cycles
Part
Battery Pack
Part number
285W0955102
Condition
Inoperative
Location
L4 Door Assist
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

AIRCRAFT WAS NOT GROUNDED: L4 DOOR EMERGENCY POWER ASSIST SYSTEM PACK WILL NOT ACCEPT A CHARGE. REINSTALLED A NEW EMERGENCY POWER ASSIST SYSTEM BATTERY PACK IN L4 PER AMM 52-11-20-400-805-02.