What was found
(AIRCRAFT NOT GROUNDED) UPON EPSU SYSTEM TEST RECIEVED FAULT MESSAGE ""BAT/EPSU(13WL)AFT L"" / REMOVED AND REPLACED EPSU SYSTEM BATER FIN 13WL IAW AMM 33-51-38-000-001-A & 33-51-38-400-001-A. OPS CHECK GOOD.
- Difficulty date
- August 22, 2026
- Submitted
- August 24, 2026
- Operation
- Air carrier
- Aircraft
- N257NV
- Make and model
- Airbus A320214
- Aircraft serial
- 8329
- Aircraft time
- 20,025 hours, 9,992 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Epsu
- Part number
- 321431
- Part serial
- 962038
- Condition
- Faulted
- 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.