# N71817: Hayes Clifford G KOLB TWINSTAR, registration cancelled 1997-03-14

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 14, 1997
- Status when cancelled: Triennial form not returned
- Airframe: [Hayes Clifford G KOLB TWINSTAR](https://openairdocs.org/model/hayes-clifford-g-kolb-twinstar) (registry code 0561854)
- Serial number: TS281
- Type of aircraft: Fixed wing single engine
- Certificate issued: January 23, 1991
- Last registry action: January 15, 1997
- Mode S code: A99C60
- Owner when cancelled: [Hayes Clifford G](https://openairdocs.org/faa-owner/HAYES%20CLIFFORD%20G)
- Location: [Ballston Spa, NY](https://openairdocs.org/faa-place/NY/Ballston%20Spa)
- Owner type: Individual
- Owner's area on the map: 43.0017° N, 73.8701° W: Placed by OpenAirDocs at the center of ZIP code 12020, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N71817
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=71817
- Page: https://openairdocs.org/deregistered/N71817-1997-03-14

From the FAA registry file of October 29, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Hayes Clifford G KOLB TWINSTAR: https://openairdocs.org/model/hayes-clifford-g-kolb-twinstar.md

## NTSB investigations (1)

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 NYC91DFA02](https://openairdocs.org/ntsb/NYC91DFA02), Jan 27, 1991: Hayes Kolb/Twinstar (N71817), Round Lake, NY, substantial damage, 1 fatal. Probable cause: IN-FLIGHT STRUCTURAL FAILURE OF THE OUTBOARD WING ATTACHMENT FITTINGS ON BOTH WINGS DUE TO AN UNDETERMINED REASON.

## FAA accident and incident reports (1)

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 19910127000999A](https://openairdocs.org/incident/19910127000999A), Jan 27, 1991: Amtrkb TWINSTAR (N71817), Round Lake, NY, Substantial damage, 1 fatal. Wings folded on landing approach home built on first test flight fell to ground. Strut attach bolts were missing.

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