What was found
AIRCRAFT WAS NOT GROUNDED, EMERGENCY POWER SUPPLY UNIT FAILED A BATTERY TEST AT 13WL. MAINTENANCE REPLACED EMERGENCY POWER SUPPLY UNIT BATTERY IAW AMM 33-51-38-401.
- Difficulty date
- January 29, 2020
- Submitted
- January 31, 2020
- Operation
- Air carrier
- Aircraft
- N994AN
- Make and model
- Airbus A321231
- Aircraft serial
- 7407
- Aircraft time
- 10,646 hours, 4,061 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Condition
- No Test
- Location
- Emergency 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.