# N221DP: Skillman G. Lee THORP T-18, registration cancelled 1993-11-17

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: November 17, 1993
- Status when cancelled: Valid registration
- Airframe: [Skillman G. Lee THORP T-18](https://openairdocs.org/model/skillman-g-lee-thorp-t-18) (registry code 89510F7)
- Serial number: 294
- Type of aircraft: Fixed wing single engine
- Certificate issued: July 17, 1991
- Last registry action: July 19, 1991
- Mode S code: A1E511
- Owner when cancelled: [Waage Thomas C](https://openairdocs.org/faa-owner/WAAGE%20THOMAS%20C)
- Location: [West Chatham, MA](https://openairdocs.org/faa-place/MA/West%20Chatham)
- Owner type: Individual
- Owner's area on the map: 41.6810° N, 69.9926° W: Placed by OpenAirDocs: center of West Chatham, MA, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N221DP
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=221DP
- Page: https://openairdocs.org/deregistered/N221DP-1993-11-17

From the FAA registry file of October 31, 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 Skillman G. Lee THORP T-18: https://openairdocs.org/model/skillman-g-lee-thorp-t-18.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 NYC93FA110](https://openairdocs.org/ntsb/NYC93FA110), Jun 13, 1993: Skillman Thorp T-18 (N221DP), Chatham, MA, destroyed, 1 fatal. Probable cause: the pilot's performance of an aerobatic maneuver, with insufficient altitude for recovery, resulting in a collision with the water

## 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 19930613017889A](https://openairdocs.org/incident/19930613017889A), Jun 13, 1993: Amtrth THORPT18 (N221DP), Chatham, MA, Destroyed, 1 fatal. Buzzing jet skiers. Rolled just off water surface. Wing dug in causing cartwheel. Passenger had cautioned pilot.

## Other aircraft with N221DP

- [Registered now](https://openairdocs.org/aircraft/N221DP): Beech 36, S/N E-6, built 1968

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