# SDR 2019FA0000326

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 9, 2019
- Submitted: September 30, 2019
- Operation: General aviation
- Filed by: [CAE Oxford Aviation Academy Phoenix Inc, repair station B4VR470K](https://openairdocs.org/faa-repair-station/B4VR470K/cae-oxford-aviation-academy-phoenix-inc.md) (OpenAirDocs)
- Aircraft: N4403N
- Make and model: Piper PA-28-181
- Registry model: [Piper PA-28-181](https://openairdocs.org/model/piper-pa-28-181) (OpenAirDocs)
- Aircraft serial: 2843723
- Aircraft time: 6,700 hours
- Engine: Lyc O360A4M
- Engine time: 2,200 hours
- Propeller: Snsnch 76EM8
- System (JASC): [7322 · Fuel Control/Reciprocating Engines](https://openairdocs.org/jasc/7322)
- Part: Carburetor
- Part number: 106102
- Part serial: MS053801
- Condition: Leaking
- Location: Engine
- Part time: 2,200 hours
- Stage of operation: TX
- How discovered: O
- Nature of condition: K, A
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2019FA0000326

## Discrepancy

ON ENGINE START ATTEMPT THERE WAS A MAJOR ENGINE FIRE. IT IS BELIEVED THAT THE CARBURETOR SPEWED OUT FUEL BECAUSE THE FUEL VAPORIZATION IN THE FUEL LINES OVERPOWERED THE FLOAT VALVE AND SEAT. THIS CAUSED THE CARBURETOR TO FLOOD THE ENGINE COMPARTMENT. THE SOURCE OF THE SPARK THAT IGNITED THE FUEL IS UNKNOWN.

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