What was found
AIRCRAFT WAS NOT GROUNDED: DURING PS CHECK OF THE EMERGENCY LIGHTS, FOUND FAULT BATTERY/EPSU (13WL) AFT LEFT. MAINTENANCE REPLACED BATTERY OF THE EPSU PER MM 33-51-38.
- Difficulty date
- May 6, 2019
- Submitted
- May 9, 2019
- Operation
- Air carrier
- Aircraft
- N991AU
- Make and model
- Airbus A321231
- Aircraft serial
- 7131
- Aircraft time
- 8,605 hours, 3,284 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.