What was found
AIRCRAFT WAS NOT GROUNDED: EMERGENCY POWER SUPPLY UNIT BATTERY 12WL FAILED CIDS EMERGENCY POWER SUPPLY UNIT SYSTEM TEST. MAINTENANCE REPLACED EMERGENCY POWER SUPPLY UNIT BATTERY 12WL PER AMM 33-51-38.
- Difficulty date
- July 29, 2019
- Submitted
- July 31, 2019
- Operation
- Air carrier
- Aircraft
- N933AM
- Make and model
- Airbus A321231
- Aircraft serial
- 7564
- Aircraft time
- 8,093 hours, 3,074 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Condition
- Discharged
- Location
- Cabin
- 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.