Service difficulty report · Battery Pack · Boeing 777223

Difficulty date
September 13, 2018
Submitted
September 14, 2018
Operation
Air carrier
Aircraft
N791AN
Make and model
Boeing 777223
Aircraft serial
30254
Aircraft time
72,415 hours, 9,241 cycles
Part
Battery Pack
Part number
D71702001
Condition
Inoperative
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

FORWARD AFT EMERGENCY EXIT SIGN, ADJACENT TO THE R3 DOOR WAS INOPERATIVE. REPLACED THE POWER SUPPLY BATTERY PACK IAW AMM 33-51-00, AND TESTED GOOD IAW AMM 33-51-06.