# SDR C2XA03IA093

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 6, 2003
- Submitted: September 11, 2003
- Operation: Air carrier
- Aircraft: N14902
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145496
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Switch
- Part number: 4800102
- Part serial: 9916
- Condition: Inoperative
- Location: Apu
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/C2XA03IA093

## Discrepancy

WHILE TRYING TO START THE APU THE CREW NOTED A STRONG FUEL ODOR AFTER TGE APU WAS STARTED.  NOTE: IT IS DIFFICULT TO START THE APU, HAVE TO HOLD SWITCH UNTIL APU IS AT 100 PERCENT.  MAINTENANCE REMOVED AND REPLACED THE APU EXTINGUISHER SWITCH, PERFORMED A OPERATIONAL CHECK, NO FUMES NOTED, AND, THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.

---
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.