# N43RA: 2022 Robert W Duncan AR-1

- Status: Valid registration
- Airframe: [Robert W Duncan AR-1](https://openairdocs.org/model/robert-w-duncan-ar-1) (registry code 05641AO, 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: 0055
- Year built: 2022
- Type: Rotorcraft
- Engine type: 4 cycle
- Kit: Silverlight Aviation LLC AR-1
- Airworthiness: Experimental, amateur built
- Airworthiness date: September 24, 2022
- Certificate issued: September 12, 2022
- Expires: September 30, 2029
- Mode S code: A5223D
- Registered owner: [Ra Ventures LLC](https://openairdocs.org/faa-owner/RA%20VENTURES%20LLC)
- Location: [Crawford, CO](https://openairdocs.org/faa-place/CO/Crawford)
- Owner type: LLC
- Owner's area on the map: 38.6255° N, 107.6276° W: Placed by OpenAirDocs at the center of ZIP code 81415, within about 9 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=43RA
- Page: https://openairdocs.org/aircraft/N43RA

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 (Robert W Duncan AR-1)

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### Historical (superseded or no longer in force)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 N43RA.

## FAA accident and incident reports

None matched to N43RA.

## Reports on N43RA not matched to an aircraft (2)

They name N43RA, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [Incident 19830321023369I](https://openairdocs.org/incident/19830321023369I), Mar 21, 1983: Swrngn SA226TC (N43RA), Chicago, IL. Aborted takeoff due to engine flameout. Slush and water found in engine. Airplane became stuck in slush and snow.
- [Incident 19790718019219I](https://openairdocs.org/incident/19790718019219I), Jul 18, 1979: Swrngn SA26/ (N43RA), Taxarkana, TX, Minor damage. Left main tires blew after landing with brakes locked.

## 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 N43RA

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N43RA before.

- [Cancelled 2013-08-14](https://openairdocs.org/deregistered/N43RA-2013-08-14): Piper PA-23-250, S/N 27-7405280, built 1974. Sale reported, canceled. Owner: [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington)

## Related

- Other Robert W Duncan AR-1 aircraft: https://openairdocs.org/model/robert-w-duncan-ar-1/aircraft.md
- The Rotax 915 IS series engine: https://openairdocs.org/engine/rotax-915-is-series.md

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