What was found
THE EMERGENCY LIGHT SYSTEM FAILED OPERATIONAL TEST WITH FAILURE MESSAGE (EPSU UNIT EXIT R). MAINTENANCE REPLACED THE MID-CABIN, RT SIDE EMERGENCY POWER SUPPLY UNIT. OPERATIONALLY CHECKS OK.
- Difficulty date
- July 22, 2006
- Submitted
- July 24, 2006
- Operation
- Air carrier
- Aircraft
- N178US
- Make and model
- Airbus A321211
- Aircraft serial
- 1519
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Epsu
- Part number
- 32145410
- Condition
- Faulty
- Location
- Cabin
- Part time
- 18,469 hours
- 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.