What was found
EMERGENCY LIGHT TEST FAILS EPSU COM L. *S/D* EMERGENCY POWER SUPPLY UNIT (11WL) WAS FOUND FAULTED DURING TEST WITH MESSAGE EPSU COM L SHOWN. THE UNIT WAS REPLACED AND CHECKED NORMAL.
- Difficulty date
- November 29, 1999
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N444UA
- Make and model
- Airbus A320232
- Aircraft serial
- 824
- Engine
- Iae V2527A5
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Condition
- Failed
- Location
- Cabin
- Component
- Diehl Gmbh & · 321454
- Stage of operation
- IN
- Nature of condition
- L
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.