# N3172U: 1976 Siai-Marchetti SM 1019

- Status: Valid registration
- Airframe: [Siai-Marchetti SM 1019](https://openairdocs.org/model/siai-marchetti-sm-1019) (registry code 8121215, 2 seats)
- Engine: [Allison 250-B15G](https://openairdocs.org/engine/allison-250-b15g) (registry code 03064)
- Data sheets: [TCDS E10CE](https://openairdocs.org/tcds/E10CE) (Rolls-Royce Corporation) (OpenAirDocs)
- Serial number: 038
- Year built: 1976
- Type: Fixed wing single engine
- Engine type: Turbo-prop
- Airworthiness: Experimental, exhibition
- Airworthiness date: September 29, 2008
- Certificate issued: November 18, 2020
- Expires: November 30, 2027
- Mode S code: A36383
- Registered owner: [D & D Airpark LLC](https://openairdocs.org/faa-owner/D%20%26%20D%20AIRPARK%20LLC)
- Location: [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage)
- Owner type: LLC
- Owner's area on the map: 69.9719° N, 150.0336° W: Placed by OpenAirDocs at the center of ZIP code 99519, within about 26 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=3172U
- Page: https://openairdocs.org/aircraft/N3172U

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination.

## ADs that may apply (OpenAirDocs): 7 in force

### Matched by airframe (Siai-Marchetti SM 1019)

None in force.

### Matched by engine (Allison 250-B15G)

- [AD 2006-16-04](https://openairdocs.org/ad/2006-16-04): Inspection of the fuel nozzle screen · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 43 more. Effective Sep 7, 2006
- [AD 98-24-28](https://openairdocs.org/ad/98-24-28): Main Fuel Control Bellows · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 36 more. Effective Jan 7, 1999
- [AD 96-19-01](https://openairdocs.org/ad/96-19-01): Superior Air Parts Manufacture Approval (PMA) Bearings · Rolls-Royce 250-B15G, 250-B17F, 250-B17F/1 and 17 more. Effective Sep 26, 1996
- [AD 82-24-05](https://openairdocs.org/ad/82-24-05): Control Assembly and Power Turbine Governor Assembly · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 43 more. Effective Nov 26, 1982
- [AD 82-12-04](https://openairdocs.org/ad/82-12-04): Combined Power Turbine and Propeller Governor Assembly · Cessna 401, 401A, 401B and 11 more. Effective Jun 7, 1982
- [AD 77-15-12](https://openairdocs.org/ad/77-15-12): Power Turbine Coupling Nut · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 23 more. Effective Sep 23, 1977
- [AD 72-03-06](https://openairdocs.org/ad/72-03-06): Turbine Wheels · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 9 more. Effective Feb 8, 1972

### Historical (superseded or no longer in force)

- [AD 2004-24-09](https://openairdocs.org/ad/2004-24-09) (historical): Fuel nozzle · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 40 more. Effective Jan 5, 2005

## Information bulletins (advisory)

None matched.

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB WPR26LA006](https://openairdocs.org/ntsb/WPR26LA006), Oct 2, 2025: Siai-Marchetti SM 1019 (N3172U), Richland, WA, substantial damage, investigation ongoing

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20251002014589A](https://openairdocs.org/incident/20251002014589A), Oct 2, 2025: Siai-Marchetti SM 1019 (N3172U), Richland, WA, Substantial damage. Pilot noticed RPM fluxuations in cruise flight and was getting worse. Decided to land the aircraft. Pilot moved condition lever forward for landing it felt…

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs) (2)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the engine (Allison 250-B15G)

- [STC ST00037AT](https://openairdocs.org/stc/ST00037AT): Unison igniter plugs, P/N 9044400-1. Unison Industries
- [STC SQ00338AT](https://openairdocs.org/stc/SQ00338AT): Unison igniter leads, P/N9048222-101, 102, 103, 104, 105, 106. Unison Industries

## Related

- Other Siai-Marchetti SM 1019 aircraft: https://openairdocs.org/model/siai-marchetti-sm-1019/aircraft.md
- The Allison 250-B15G engine: https://openairdocs.org/engine/allison-250-b15g.md

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