Service difficulty report · Battery Pack · Boeing 777223

Difficulty date
February 14, 2024
Submitted
February 21, 2024
Operation
Air carrier
Aircraft
N770AN
Make and model
Boeing 777223
Aircraft serial
29578
Aircraft time
93,062 hours, 11,854 cycles
Part
Battery Pack
Part number
D71702001
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

AIRCRAFT WAS NOT GROUNDED: R1 EMERGENCY BATTERY PACK FAILED FUNCTIONAL TEST. REMOVE AND REPLACED EMERGENCY BATTERY AT R1 DOOR. OPERATIONAL CHECK GOOD, PER AMM 33-51-06.