What was found
AIRCRAFT WAS GROUNDED: DURING PERIDIC SERVICE CHECK FOR EMERGENCY POWER SUPPLY UNIT BATTERY CHECK EMERGENCY POWER SUPPLY UNIT 12WL BATTERY FAULTY. REPLACED BATTERY PER AMM 33-51-38. AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.
- Difficulty date
- July 17, 2023
- Submitted
- July 19, 2023
- Operation
- Air carrier
- Aircraft
- N106NN
- Make and model
- Airbus A321231
- Aircraft serial
- 5932
- Aircraft time
- 32,413 hours, 6,642 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
- L
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.