What was found
EPSU BATTERY EMER L, FAULT MESSAGE FROM CIDS WHILE CONDUCTING EMER LIGHT SYSTEM TEST. REMOVED AND REPLACED EPSU BATTERY 11WL, IAW AMM 33-51-38-000-002-A, 33-51-38-400-002-A. OPS CHECKED GOOD, NO FAULT MESSAGES OR DEFECTS NOTED.
- Difficulty date
- November 29, 2025
- Submitted
- December 2, 2025
- Operation
- Air carrier
- Aircraft
- N840UA
- Make and model
- Airbus A319131
- Aircraft serial
- 1522
- Aircraft time
- 69,021 hours, 30,583 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Part number
- AD321431
- 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.