What was found
AIRCRAFT WAS NOT GROUNDED: DURING PERIODIC SERVICE CHECK CABIN EMERGENCY EXIT LIGHT MCDU TEST FAULTED BATTERY ON EMERGENCY POWER SUPPLY UNIT 13WL. REPLACED BATTERY PER AMM 33-51-38 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.
- Difficulty date
- April 22, 2023
- Submitted
- April 25, 2023
- Operation
- Air carrier
- Aircraft
- N442AN
- Make and model
- Airbus A321253NX
- Aircraft serial
- 10711
- Aircraft time
- 5,182 hours, 1,366 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 321431
- Condition
- No Test
- Location
- Zone 200 - Fuse
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.