What was found
AIRCRAFT WAS NOT GROUNDED: DURING PS CHECK FOUND THAT EPSU LEFT MID CABIN BATTERY FAILED. MAINTENANCE REPLACED THE BATTERY OF THE EMERGENCY POWER SUPPLY UNIT LEFT MID CABIN IAW AMM 33-51-38.
- Difficulty date
- December 27, 2025
- Submitted
- December 30, 2025
- Operation
- Air carrier
- Aircraft
- N740UW
- Make and model
- Airbus A319112
- Aircraft serial
- 1265
- Aircraft time
- 65,222 hours, 39,634 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- 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.