# SDR 20001204AP013

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 3, 2000
- Submitted: October 11, 2000
- Operation: Air carrier
- Aircraft: [N293UX](https://openairdocs.org/aircraft/N293UX), registered now
- Make and model: Emb EMB-120ER
- Registry model: [EMB EMB-120ER](https://openairdocs.org/model/embraer-emb-120er) (OpenAirDocs)
- Aircraft serial: 120293
- System (JASC): [2450 · AC Power Distribution System](https://openairdocs.org/jasc/2450)
- Part: Relay
- Part number: 44B258051001
- Condition: Overheated
- Location: F/O Sidepanel
- Stage of operation: TX
- How discovered: O
- Nature of condition: B
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/20001204AP013

## Discrepancy

BURNED ELECTRICAL SMELL FROM F/O SIDE PANEL.  MAINTENANCE INSPECTED AND FOUND THE HEAT SOURCE TO BE FROM THE APU FEEDER PROTECTION RELAY.  WITH THE APU OFF THERE WERE NO SIGNS OF HEAT OR SMOKE.  APU FEEDER PROTECTION RELAY REPLACED.  OPS CHECK GOOD.  (M)

---
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.