What was found
THE MID EMERGENCY LIGHT POWER SUPPLY BATTERY PACK (M33406) FOUND LOW CAPACITY . REPLACED THE BATTERY PACK (M33406) AND CARRIED OUT OPERATION TEST. THE TEST WAS NORMAL IAW AMM 33-51-06-960-803, REV.108.
- Difficulty date
- October 6, 2026
- Submitted
- October 7, 2026
- Operation
- Air carrier
- Aircraft
- N57016
- Make and model
- Boeing 777224
- Aircraft serial
- 28679
- Aircraft time
- 122,807 hours, 12,543 cycles
- Engine
- Ge GE9094B
- System (JASC)
- 3350 · Emergency Lighting
- 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.