What was found
AIRCRAFT WAS NOT GROUNDED: WHILE PERFORMING CIDS1 EPSU SYS TEST ON PS CHECK FOUND CLASS 1 FAULT FOR BAT/EPSU (12WL) EXT R. REMOVED AND REPLACED BATTERY FOR 12WL EPSU. OPS CEHCK GOOD AT THIS TIME. ALL WORK DONE IAW AMM 33-51-38
- Difficulty date
- October 17, 2026
- Submitted
- October 19, 2026
- Operation
- Air carrier
- Aircraft
- N124AA
- Make and model
- Airbus A321231
- Aircraft serial
- 6271
- Aircraft time
- 38,046 hours, 13,022 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- AD321431
- Condition
- Faulted
- 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.