Service difficulty report · Battery Pack · Boeing 777323ER

Difficulty date
December 4, 2019
Submitted
December 5, 2019
Operation
Air carrier
Aircraft
N726AN
Make and model
Boeing 777323ER
Aircraft serial
31550
Aircraft time
26,622 hours, 2,929 cycles
Part
Battery Pack
Part number
D71701100
Part serial
305984
Condition
No Test
Location
Emergency Light
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 IN BASE MAINTENANCE: DOOR 5L EMERGENCY EXIT SIGN INOPERATIVE. REPLACED BATTERY PACK ON POWER SUPPLY M33407 PER AMM 33-51-06-960-802 AND PERFORMED SATISFACTORY OPERATIONAL CHECK PER AMM 33-51-06-710-002.