What was found
DURING EMERGENCY POWER SUPPLY UNIT OPERATIONAL CHECK, RECEIVED A FAULT MESSAGE. REMOVED AND REPLACED THE EPSU BATTERY IAW AMM.
- Difficulty date
- September 15, 2017
- Submitted
- September 18, 2017
- Operation
- Air carrier
- Aircraft
- N509AY
- Make and model
- Airbus A321231
- Aircraft serial
- 3796
- Aircraft time
- 31,369 hours, 11,051 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Part number
- 32145410
- Condition
- Faulted
- 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.