# SDR AALA202309195607

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 16, 2023
- Submitted: September 19, 2023
- Operation: Air carrier
- Aircraft: [N149AN](https://openairdocs.org/aircraft/N149AN), registered now
- Make and model: Airbus A320*
- Aircraft serial: 6812
- Aircraft time: 65,729 hours, 32,793 cycles
- System (JASC): [3397 · Light System Wiring](https://openairdocs.org/jasc/3397)
- Part: Connector
- Part number: UNKNOWN
- Condition: Loose
- Location: Zone 200 - Fuse
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202309195607

## Discrepancy

AIRCRAFT WAS GROUNDED: WHILE PERFORMING THE EMERGENCY POWER SUPPLY UNIT BITE TEST MAINTENANCE FOUND EMERGENCY POWER SUPPLY UNIT 10WL FWD L/DEV-B(300RH1) FAULT MESSAGE. MAINTENANCE SECURED LOOSE CONNECTOR AT 2870VC AND ACCOMPLISHED A SATISFACTORY BITE TEST.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.