What was found
CLT - THE AIRCRAFT FAILED THE EMERGENCY LIGHTS TEST WITH THE MESSAGE 'EPSU COMM AFT L'. MAINTENANCE REPLACED TEH EMERGENCY POWER SUPPLY UNIT BATTERY AT THE AFT PASSENGER CABIN POSITION. OPERATIONALLY CHECKS OK. (M)
- Difficulty date
- December 3, 2003
- Submitted
- January 21, 2004
- Operation
- Air carrier
- Aircraft
- N180US
- Make and model
- Airbus A321211
- Aircraft serial
- 1525
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 321430
- Condition
- Inoperative
- Location
- Emergency Light
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- L
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.