Service difficulty report · Battery · Boeing 777222

Difficulty date
December 3, 2018
Submitted
December 7, 2018
Operation
Air carrier
Aircraft
N799UA
Make and model
Boeing 777222
Aircraft serial
26926
Aircraft time
90,721 hours, 12,182 cycles
Part
Battery
Part number
ADD71701100
Part serial
109415
Condition
Discharged
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

REFER NR L/P 9466024 - SPEC NO.B777-33-3-7019 - EMER LIGHT TEST FND L4 AREA LIGHT NO ILLUMINATE. REPLACED THE L4 EMERGENCY LIGHT POWER PACK AND C/O TEST FND NORM REF AMM 33-51-06-960-803 REV 84