# N251AB: 2023 Gyroflight M16 XTREME

- Status: Valid registration
- Airframe: [Gyroflight M16 XTREME](https://openairdocs.org/model/gyroflight-m16-xtreme) (registry code 056412N, 2 seats)
- Engine: [Rotax 915 IS series](https://openairdocs.org/engine/rotax-915-is-series) (registry code 55620)
- Data sheets: [TCDS E00051EN](https://openairdocs.org/tcds/E00051EN) (BRP-Rotax GmbH & Co KG) (OpenAirDocs)
- Serial number: 16234536
- Year built: 2023
- Type: Gyroplane
- Engine type: Reciprocating
- Kit: Magni Gyro Srl M16 XTREME
- Airworthiness: Experimental, amateur built
- Airworthiness date: October 5, 2023
- Certificate issued: September 25, 2023
- Expires: September 30, 2030
- Mode S code: A25B37
- Registered owner: [Gyroflight LLC](https://openairdocs.org/faa-owner/GYROFLIGHT%20LLC)
- Location: [Dane, WI](https://openairdocs.org/faa-place/WI/Dane)
- Owner type: LLC
- Owner's area on the map: 43.2431° N, 89.5311° W: Placed by OpenAirDocs at the center of ZIP code 53529, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=251AB
- Page: https://openairdocs.org/aircraft/N251AB

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. The registry lists only the engine series, so ADs for every Rotax 915 IS model are included.

## ADs that may apply (OpenAirDocs): 2 in force

### Matched by airframe (Gyroflight M16 XTREME)

None in force.

### Matched by engine (Rotax 915 IS series)

- [AD 2026-04-02](https://openairdocs.org/ad/2026-04-02): Turbine Engine Reduction Gear · BRP-Rotax 915 iSc2 C24 and 915 iSc3 C24. Effective Mar 19, 2026
- [AD 2025-15-03](https://openairdocs.org/ad/2025-15-03): Reciprocating Engine Oil System · BRP-Rotax 912 iSc2 Sport, 912 iSc3 Sport, 915 iSc2 C24 and 1 more. Effective Aug 6, 2025

### Historical (superseded or no longer in force)

- [AD 2025-07-02](https://openairdocs.org/ad/2025-07-02) (historical): Reciprocating Engine Oil System · BRP-Rotax 912 iSc2 Sport, 912 iSc3 Sport, 915 iSc2 C24 and 1 more. Effective Apr 21, 2025

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N251AB.

## FAA accident and incident reports

None matched to N251AB.

## Reports on N251AB not matched to an aircraft (1)

They name N251AB, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [Incident 19890329004859I](https://openairdocs.org/incident/19890329004859I), Mar 29, 1989: Hwksly DH125400A (N251AB), Longview, TX, Minor damage. Right main wheel hit a pool of water on the runway on rollout. Inboard part of right flap was bent up 45 degrees.

## 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) (1)

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 (Rotax 915 IS series)

- [STC SE01966WI](https://openairdocs.org/stc/SE01966WI): Use of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft engines. General Aviation Modifications Inc. Lists 915 iSc2 C24

## Earlier aircraft with N251AB

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N251AB before.

- [Cancelled 2010-12-17](https://openairdocs.org/deregistered/N251AB-2010-12-17): Bell Helicopter Textron Canada 412EP, S/N 36545, built 2010. Exported to Mexico. Owner: [Bell Helicopter Textron Inc](https://openairdocs.org/faa-owner/BELL%20HELICOPTER%20TEXTRON%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth)

## Related

- Other Gyroflight M16 XTREME aircraft: https://openairdocs.org/model/gyroflight-m16-xtreme/aircraft.md
- The Rotax 915 IS series engine: https://openairdocs.org/engine/rotax-915-is-series.md

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