What was found
AIRCRAFT WAS NOT GROUNDED: DURING PS CHECK, CIDS 1 EMERGENCY POWER SUPPLY UNIT SYSTEM SHOWED BATTERY PACK FAULT AT 10WL. MAINTENANCE REPLACED EMERGENCY POWER SUPPLY UNIT BATTERY PER 33-51-18.
- Difficulty date
- February 28, 2020
- Submitted
- March 3, 2020
- Operation
- Air carrier
- Aircraft
- N996AN
- Make and model
- Airbus A321231
- Aircraft serial
- 7310
- Aircraft time
- 10,659 hours, 4,039 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Condition
- Faulted
- Location
- Cabin
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.