What was found
AIRCRAFT WAS NOT GROUNDED: EMERGENCY POWER SUPPLY UNIT SYSTEM TEST SHOWS FAULT FOR 11WL UNIT. REPLACED BATTERY FOR 11WL REF AMM 33-51-38.
- Difficulty date
- July 31, 2021
- Submitted
- August 2, 2021
- Operation
- Air carrier
- Aircraft
- N933AM
- Make and model
- Airbus A321231
- Aircraft serial
- 7564
- Aircraft time
- 13,158 hours, 5,075 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Condition
- Inoperative
- Location
- Emegency Lights
- 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.