What was found
PROCEDURE - EMERGENCY LIGHT ON CIDS BITE TEST FAULT : EPSU BATTERY EMER R R&R BATTERY OF THE EMERGENCY POWER SUPPLY UNIT (EPSU) IAW AMM 33-51-38 OPS CHECK GOOD PARTS USED: 18-3351-3-0001,QTY :1
- Difficulty date
- July 14, 2026
- Submitted
- July 15, 2026
- Operation
- Air carrier
- Aircraft
- N475UA
- Make and model
- Airbus A320232
- Aircraft serial
- 1495
- Aircraft time
- 71,203 hours, 31,505 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- AD321431
- Condition
- Faulty
- Location
- Zone 200
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- L, J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.