What was found
AIRCRAFT WAS NOT GROUNDED. 15WL FAULT DURING EMERGENCY POWER SUPPLY UNIT BITE TEST. REPLACED EMERGENCY POWER SUPPLY UNIT BATTERY PER AMM 33-51-38.
- Difficulty date
- November 27, 2017
- Submitted
- December 1, 2017
- Operation
- Air carrier
- Aircraft
- N154AA
- Make and model
- Airbus A321231
- Aircraft serial
- 6928
- Aircraft time
- 6,159 hours, 2,369 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 321431
- Part serial
- 780847
- 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.