What was found
DURING 4-DAY CHECK EMERGENCY LIGHTS WOULD NOT PASS TEST AT THE PRESS TO TEST PANEL. MAINTENANCE REMOVED AND REPLACED THE LT OVER WING EMERGENCY POWER SUPPLY UNIT (11WL) AND BATTERY PACK; OPERATIONAL CHECK WAS GOOD.
- Difficulty date
- July 11, 2004
- Submitted
- July 12, 2004
- Operation
- Air carrier
- Aircraft
- N631AW
- Make and model
- Airbus A320231
- Aircraft serial
- 077
- Aircraft time
- 46,942 hours, 21,237 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Epsu
- Part number
- 321454
- Part serial
- 0728
- Condition
- Faulty
- Location
- Zone 241
- Part time
- 7,999 hours, 3,160 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.