Service difficulty report · Battery Pack · Boeing 777224

Difficulty date
April 14, 2021
Submitted
April 16, 2021
Operation
Air carrier
Aircraft
N78002
Make and model
Boeing 777224
Aircraft serial
27578
Aircraft time
104,039 hours, 10,590 cycles
Part
Battery Pack
Part number
ADD71701100
Part serial
256589
Condition
Discharged
Location
Emergency Lights
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

EMERGENCY POWER SUPPLY L3(M33400)CAPACITY CHECK FOUND LOW REFER HAECO NON-ROUTINE NO.9432209,ORIGINATED BY EMP:V905359,SPEC NO.B 777-33-3-7015. PERFORMED BY EMP:V903529,REPLACED EMERGENCY POWER SUPPLY L3(M334 00) AND C/O OPERATIONAL TEST AS PER AMM 33-51-06-960-802 REV.91. THE RESULT FND"NORMAL".IDT BY EMP:V905359.