What was found
AIRCRAFT WAS NOT GROUNDED. EMERGENCY POWER SUPPLY UNIT (14WL) FAILED TEST. REPLACED EMERGENCY POWER SUPPLY UNIT BATTERY PER AMM 33-51-00.
- Difficulty date
- August 29, 2017
- Submitted
- August 31, 2017
- Operation
- Air carrier
- Aircraft
- N159AN
- Make and model
- Airbus A321231
- Aircraft serial
- 7034
- Aircraft time
- 5,043 hours, 1,888 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 321430
- 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.