Service difficulty report · Battery Pack · Boeing 777222

Difficulty date
May 19, 2025
Submitted
May 21, 2025
Operation
Air carrier
Aircraft
N795UA
Make and model
Boeing 777222
Aircraft serial
26927
Aircraft time
108,948 hours, 14,410 cycles
Part
Battery Pack
Part number
ADD71701100
Condition
Discharged
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

R1 DOOR EMERGENCY LIGHT POWER SUPPLY BATTERY PACK LOW CAPACITY - ORIGINATED BY EMP V903218 ON HAECO NR 9465706, RAISED FROM WORK CARD 86-3350-1-0002. SDR REPORTABLE ENTERED. PERFORMED BY EMP V903218, IDT BY TA317. REPLACED R1 DOOR EMERGEN CY LIGHT POWER SUPPLY BATTERY PACK M33904 AND POWER SUPPLY BATTE RY CHARGER AS PER AMM 33-51-06-960-802 REV 104 & AMM 33-51-06-96 0-802 REV 104. PERFORMED THE NEW BATTERY PACK INSTALLATION TEST AND THE NEW BATTERY PACK CAPACITY CHECK AS PER AMM 33-51-06-960- 802 REV 104 & AMM 33-51-06-200-801 REV 104. TEST RESULT NORMAL.