What was found
AIRCRAFT NOT GROUNDED: MAINTENANCE FOUND FWD LEFT (10WL) FAILS EPSU SYSTEM TEST. REMOVED AND REPLACED EMERGENCY POWER SUPPLY UNIT BATTERY IAW AMM 33-51-38 .
- Difficulty date
- April 11, 2019
- Submitted
- April 15, 2019
- Operation
- Air carrier
- Aircraft
- N992AU
- Make and model
- Airbus A321231
- Aircraft serial
- 7157
- Aircraft time
- 7,891 hours, 2,978 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 321431
- Condition
- Failed
- 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.