# Hirth F-23

- Type: Engine model (FAA registry)
- Registry code: 33721
- Manufacturer (registry): HIRTH
- Model: F-23
- Engine type: 2 cycle
- Power: 50 hp
- Installed in: 8 registered aircraft
- Page: https://openairdocs.org/engine/hirth-f-23

Model codes come from the FAA registry's reference file.

## ADs that may apply (OpenAirDocs)

Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

None matched.

## Registered aircraft (8)

- [N1301A](https://openairdocs.org/aircraft/N1301A): [Autrey Randy D](https://openairdocs.org/faa-owner/AUTREY%20RANDY%20D), [Bethel, ME](https://openairdocs.org/faa-place/ME/Bethel), built 2014, S/N LAB01
- [N133GT](https://openairdocs.org/aircraft/N133GT): [Barrett Neville P E Trustee](https://openairdocs.org/faa-owner/BARRETT%20NEVILLE%20P%20E%20TRUSTEE), [Miami, FL](https://openairdocs.org/faa-place/FL/Miami), S/N 12017
- [N1357X](https://openairdocs.org/aircraft/N1357X): [Wagner Jeffrey C](https://openairdocs.org/faa-owner/WAGNER%20JEFFREY%20C), [Paris, ID](https://openairdocs.org/faa-place/ID/Paris), built 2021, S/N HC-001
- [N5518F](https://openairdocs.org/aircraft/N5518F): [Muzzy Kenneth G](https://openairdocs.org/faa-owner/MUZZY%20KENNETH%20G), [Laurium, MI](https://openairdocs.org/faa-place/MI/Laurium), built 1998, S/N 0003-14
- [N72DX](https://openairdocs.org/aircraft/N72DX): [Vining John K](https://openairdocs.org/faa-owner/VINING%20JOHN%20K), [Mount Vernon, OH](https://openairdocs.org/faa-place/OH/Mount%20Vernon), built 2017, S/N 0194
- [N732MF](https://openairdocs.org/aircraft/N732MF): [Dann Michael S](https://openairdocs.org/faa-owner/DANN%20MICHAEL%20S), [Tavernier, FL](https://openairdocs.org/faa-place/FL/Tavernier), built 2019, S/N 002
- [N7475W](https://openairdocs.org/aircraft/N7475W): [Chouinard Shawn A](https://openairdocs.org/faa-owner/CHOUINARD%20SHAWN%20A), [Collinsville, OK](https://openairdocs.org/faa-place/OK/Collinsville), built 2023, S/N 001
- [N86047](https://openairdocs.org/aircraft/N86047): [Kuiper Steven](https://openairdocs.org/faa-owner/KUIPER%20STEVEN), [Sahuarita, AZ](https://openairdocs.org/faa-place/AZ/Sahuarita), built 1984, S/N 434

## NTSB investigations (2)

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 CEN21LA288](https://openairdocs.org/ntsb/CEN21LA288), Jun 23, 2021: Vining SD1 Minisport (N72DX), Butler, OH, substantial damage. Probable cause: The pilot’s failure to maintain adequate airspeed following a partial loss of engine power, which resulted in an aerodynamic stall and impact with terrain. The reason for the partial loss of engine…
- [NTSB WPR13FA399](https://openairdocs.org/ntsb/WPR13FA399), Sep 6, 2013: Tyler Ives SD-1 TG (N123SD), Spanish Fork, UT, destroyed, 1 fatal. Probable cause: The pilot’s failure to maintain airplane control while performing prohibited aerobatic maneuvers and the deployment and separation of the ballistic parachute system from the airframe for reasons that…

## FAA accident and incident reports (2)

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 20210623011889A](https://openairdocs.org/incident/20210623011889A), Jun 23, 2021: Vining John K SD-1 MINISPORT (N72DX), Butler, OH, Substantial damage. Approximately 1000 on 6/23/2021, aircraft N72DX, an amateur kit built, SD-1 minisport, attempted taking off on a grass strip runway 13 (east) at 0OH5 (Butler,…
- [Accident 20130906018489A](https://openairdocs.org/incident/20130906018489A), Sep 6, 2013: Tyler Ives SD-1 TG (N123SD), Spanish Fork, UT, Destroyed, 1 fatal. Pilot was conducting a test flight. It appears that at some point he decided to roll the aircraft, it is believed intentionally. He again rolled the aircraft…

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