What was found
AIRCRAFT IN BASE MAINTENANCE: EMERGENCY POWER SUUPLY UNIT 13WL DOES NOT WORK CORRECTLY. REPLACED EMERGENCY POWER SUUPLY UNIT 13WL (AALA202307189602) AND BATTERY (AALA202307183879).
- Difficulty date
- July 14, 2023
- Submitted
- July 18, 2023
- Operation
- Air carrier
- Aircraft
- N721UW
- Make and model
- Airbus A319112
- Aircraft serial
- 1095
- Aircraft time
- 62,679 hours, 36,779 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Part number
- 321454
- Part serial
- 405
- Condition
- No Test
- Location
- Zone 200 - Fuse
- Part time
- 74,661 hours, 35,409 cycles
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.