What was found
EMERGENCY LIGHT POWER PACK (M33099) LOW CAPACITY. REPLACED THE M33099 BATTERY AND TESTED OK IAW AMM 33-51-06-960-802 REV105.
- Difficulty date
- November 6, 2025
- Submitted
- November 10, 2025
- Operation
- Air carrier
- Aircraft
- N788UA
- Make and model
- Boeing 777222
- Aircraft serial
- 26942
- Aircraft time
- 113,798 hours, 14,913 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- 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.