Service difficulty report · Battery Pack · Boeing 777223

Difficulty date
February 19, 2022
Submitted
February 22, 2022
Operation
Air carrier
Aircraft
N774AN
Make and model
Boeing 777223
Aircraft serial
29581
Aircraft time
89,024 hours, 11,189 cycles
Part
Battery Pack
Part number
D71702001
Part serial
50898
Condition
Inoperative
Location
Zone 200 - Fuse
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

AIRCRAFT WAS NOT GROUNDED: DURING PS CHECK FOUND SEVERAL EMERGENCY LIGHTS INOPERATIVE IN CABIN. REPLACED QTY 4 BATTERY PACKS WITH NEW (AALA202202211121, AALA202202218807, AALA202202220856) IAW AMM 33-51-06, OPS CHECK GOOD.