# N109DH: 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: 57213
- Year built: 1976
- Type: Fixed wing single engine
- Engine type: Turbo-prop
- Airworthiness: Experimental, exhibition
- Airworthiness date: December 13, 2023
- Certificate issued: September 12, 2023
- Expires: September 30, 2030
- Mode S code: A02676
- Registered owner: [Hordon Kathleen R](https://openairdocs.org/faa-owner/HORDON%20KATHLEEN%20R)
- Location: [Newburyport, MA](https://openairdocs.org/faa-place/MA/Newburyport)
- Owner type: Individual
- Owner's area on the map: 42.8124° N, 70.8911° W: Placed by OpenAirDocs at the center of ZIP code 01950, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=109DH
- Page: https://openairdocs.org/aircraft/N109DH

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

None matched to N109DH.

## FAA accident and incident reports

None matched to N109DH.

## 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

## Earlier aircraft with N109DH

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N109DH before.

- [Cancelled 2007-08-23](https://openairdocs.org/deregistered/N109DH-2007-08-23): Piper PA-11, S/N 11-956, built 1949. Exported to Canada. Owner: [Lavalier James P](https://openairdocs.org/faa-owner/LAVALIER%20JAMES%20P), [Hillsdale, WI](https://openairdocs.org/faa-place/WI/Hillsdale)

## 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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