What was found
AIRCRAFT IN BASE MAINTENANCE - EMERGENCY LIGHT SYSTEM TEST FAILED, AMM 33-51-38, EPSU BATTERY, FORWARD LEFT. REMOVED AND REPLACED POWER UNIT, OPERATION CHECKS GOOD PER AMM 33-51-38.
- Difficulty date
- April 7, 2020
- Submitted
- April 9, 2020
- Operation
- Air carrier
- Aircraft
- N189UW
- Make and model
- Airbus A321211
- Aircraft serial
- 1425
- Aircraft time
- 64,276 hours, 24,125 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Unit
- Part number
- 32145410
- Part serial
- 008770
- Condition
- Failed
- Location
- Cabin
- Part time
- 24,524 hours, 9,200 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.