Service difficulty report · Battery · Boeing 777222

Difficulty date
February 5, 2025
Submitted
February 7, 2025
Operation
Air carrier
Aircraft
N782UA
Make and model
Boeing 777222
Aircraft serial
26948
Aircraft time
112,093 hours, 14,782 cycles
Part
Battery
Part number
ADD71701100
Condition
No Test
Location
Zone 200
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

L4 DOOR EMERGENCY LIGHT POWER SUPPLY BATTERY PACK OUT OF LIMIT D URING CAPACITY CHECK - ORIGINATED BY EMP V903218 ON HAECO NR 94 56232, RAISED FROM WORK CARD 85-3351-1-7003. PERFORMED BY EMP V903670, REPLACED THE FR 4L EMERGENCY LT POWER SUPPLY BATTERY PACK M33407 AND C/O TEST, THE TEST RESULT WAS NOR MAL. REF AMM 33-51-06-960-802 REV 103.