What was found
EPSU FWD L CLASS 1 FAULT REMOVED EMERGENCY LIGHT POWER SUPPLY UNIT (FIN 10WL) REF AMM 33-51-38-000-001-A. INSTALLED NEW EMERGENCY POWER SUPPLY UNIT REF AMM 33-51-38, OPS CHECK GOOD. NO FURTHER DEFECTS NOTED.
- Difficulty date
- May 23, 2026
- Submitted
- May 25, 2026
- Operation
- Air carrier
- Aircraft
- N14512
- Make and model
- Airbus A321271NX
- Aircraft serial
- 11953
- Aircraft time
- 5,608 hours, 2,018 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Epsu
- Part number
- 77233800
- Part serial
- 6589
- Condition
- Inoperative
- Location
- Zone 200
- Part time
- 3,862 hours, 1,454 cycles
- 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.