What was found
AIRCRAFT WAS NOT GROUNDED: EMERGENCY POWER SUPPLY UNIT BATTERY FAILED AT 10WL. REMOVED AND REPLACED EMERGENCY POWER SUPPLY UNIT BATTERY AT 10WL REF MM 33-51-38.
- Difficulty date
- September 25, 2021
- Submitted
- September 27, 2021
- Operation
- Air carrier
- Aircraft
- N427AN
- Make and model
- Airbus A321253NX
- Aircraft serial
- 10235
- Aircraft time
- 2,546 hours, 730 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 321431
- Condition
- Failed
- Location
- Zone 200 - Fuse
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.