What was found
UPON AIRCRAFT INSPECTION THE EMERGENCY POWER SUPPLY UNIT (EPSU BATTERY) FAILED TO TEST. CORRECTIVE ACTION: REMOVED AND REPLACED EPSU BATTERY. OPERATIONS CHECK GOOD, REF AMM 33-51-00-710-050-B.
- Difficulty date
- January 13, 2021
- Submitted
- January 14, 2021
- Operation
- Air carrier
- Aircraft
- N337FR
- Make and model
- Airbus A320251N
- Aircraft serial
- 8380
- Aircraft time
- 7,255 hours, 3,101 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 321431
- Part serial
- UNKNOWN
- Condition
- Discharged
- Location
- Emergency Lights
- Part time
- 7,255 hours, 3,101 cycles
- 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.