What was found
AIRCRAFT WAS GROUNDED: PERIODIC SERVICE CHECK OF OPERATIONAL TEST OF EMERGENCY LIGHTS FAULT EPSU (13WL) AFT L/DEU B (300RH7). REMOVED AND REPLACED EPSU 13WL IAW AMM 33-51-38 FOR TROUBLESHOOTING. IAW AMM 33-51-38.
- Difficulty date
- August 26, 2019
- Submitted
- August 27, 2019
- Operation
- Air carrier
- Aircraft
- N991AU
- Make and model
- Airbus A321231
- Aircraft serial
- 7131
- Aircraft time
- 9,657 hours, 3,676 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Part number
- 32146210162372
- Part serial
- 151999
- Condition
- Inoperative
- Location
- Emergency Lights
- 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.