# N40377: 2001 Robertson Stephen Jay TWINSTAR MARK III

- Status: Valid registration
- Airframe: [Robertson Stephen Jay TWINSTAR MARK III](https://openairdocs.org/model/robertson-stephen-jay-twinstar-mark-iii) (registry code 05611I4, 2 seats)
- Engine: [Bombardier ROTAX (ALL)](https://openairdocs.org/engine/bombardier-rotax-all) (registry code 09050)
- Serial number: M1145
- Year built: 2001
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: August 10, 2001
- Certificate issued: July 12, 2017
- Expires: July 31, 2027
- Mode S code: A4BB33
- Registered owner: [Eicher Thomas Jay](https://openairdocs.org/faa-owner/EICHER%20THOMAS%20JAY)
- Location: [Grabill, IN](https://openairdocs.org/faa-place/IN/Grabill)
- Owner type: Individual
- Owner's area on the map: 41.2170° N, 84.9512° W: Placed by OpenAirDocs at the center of ZIP code 46741, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=40377
- Page: https://openairdocs.org/aircraft/N40377

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): 0 in force

### Matched by airframe (Robertson Stephen Jay TWINSTAR MARK III)

None in force.

### Matched by engine (Bombardier ROTAX (ALL))

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N40377.

## FAA accident and incident reports

None matched to N40377.

## 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)

None matched to this aircraft's models.

## Earlier aircraft with N40377

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N40377 before.

- [Cancelled 1977-04-07](https://openairdocs.org/deregistered/N40377-1977-04-07): Piper PA-23-250, S/N 27-7305141, built 1973. Exported to Canada. Owner: [Roger Smith Aircraft Sales Inc](https://openairdocs.org/faa-owner/ROGER%20SMITH%20AIRCRAFT%20SALES%20INC), [Chicago, IL](https://openairdocs.org/faa-place/IL/Chicago)

## Related

- Other Robertson Stephen Jay TWINSTAR MARK III aircraft: https://openairdocs.org/model/robertson-stephen-jay-twinstar-mark-iii/aircraft.md
- The Bombardier ROTAX (ALL) engine: https://openairdocs.org/engine/bombardier-rotax-all.md

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