Service difficulty report · Battery · Boeing 777222

Difficulty date
August 31, 2021
Submitted
September 1, 2021
Operation
Air carrier
Aircraft
N797UA
Make and model
Boeing 777222
Aircraft serial
26924
Aircraft time
97,499 hours, 12,731 cycles
Part
Battery
Part number
ADD71701100
Part serial
67367
Condition
Failed
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

L3 DOOR EMERGENCY LIGHT FOUND INOP REFER HAECO NON-ROUTINE NO.94 53432,ORIGINATED BY EMP:V905504,SPEC NO.B777-33-3-7011. PERFORMED BY EMP:V905507,REPLACED DR L3 M33406 BATTERY AND BATTE RY CHARGER AND DID A TEST OF BATTERY AND PNR SUPPLY,RESULT FOUND NORMAL REF AMM 33-51-06-960-802 REV.92A & AMM 33-51-06-960-803 REV.92A. IDT BY EMP:V905504.