What was found
POWER SUPPLY - BATTERY PACK CAPACITY CHECK PROCEDURE - AFTER C/W BATTERY PACK DEEP-CYCLE PROCEDURE, FOUND BATTERY M33094 WILL NOT HOLD A CHARGE FOR THE FULL 15 MINUTES. REPLACED BATTERY PACK PER AMM 33-51-06-960-802 TEST OK.
- Difficulty date
- August 30, 2025
- Submitted
- September 2, 2025
- Operation
- Air carrier
- Aircraft
- N772UA
- Make and model
- Boeing 777222
- Aircraft serial
- 26930
- Aircraft time
- 106,252 hours, 20,026 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- 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.