What was found
CIDS EMERGENCY LIGHT SYSTEMS TEST FAILED. FAULT LIGHT EPSU BATTERY AFT L. 33-51-38 REPLACED EPSU BATTERY AFT L 13WL PER AMM 33-51-38-400-002-A. BITE TEST OP CHECKS GOOD.
- Difficulty date
- April 6, 2026
- Submitted
- April 7, 2026
- Operation
- Air carrier
- Aircraft
- N850UA
- Make and model
- Airbus A319131
- Aircraft serial
- 1653
- Aircraft time
- 70,174 hours, 31,594 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- 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.