Service difficulty report · Battery · Boeing 777222

Difficulty date
November 8, 2021
Submitted
November 10, 2021
Operation
Air carrier
Aircraft
N787UA
Make and model
Boeing 777222
Aircraft serial
26939
Aircraft time
98,514 hours, 13,268 cycles
Part
Battery
Part number
ADD71701100
Part serial
203437
Condition
None
Location
M33097
Stage of operation
IN
How discovered
O
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

B777-33-3-7015 M33097 EMERGENCY LIGHTING BATTERY PACK CAPACITY FUNCTIONAL TEST FAIL. TRANSFER REF NON-ROUTINE L/P 9130448 AND ORIGINATED BY V935381 IDT INSP APPROVED BY HX102640 M33097 EMER LT BATTERY PACK REPLACED AND TEST NORMAL AS PER AMM 33-51-06 ADD EMP:V896958 M33097 EMER LT BATTERY PACK REPLACED AMD TESTED NORMAL AS PER AMM 33-51-06 ADD EMP:V896958 IDT INSP APPROVED BY HX102640