# N778T: 1979 Thomas-Michael THORP T-18, registration cancelled 2006-08-31

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: August 31, 2006
- Status when cancelled: Valid registration
- Airframe: [Thomas-Michael THORP T-18](https://openairdocs.org/model/thomas-michael-thorp-t-18) (registry code 89510C5)
- Engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508)
- Data sheets: [TCDS E-274](https://openairdocs.org/tcds/E-274) (OpenAirDocs)
- Serial number: 1124
- Year built: 1979
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: August 23, 1979
- Certificate issued: May 18, 2006
- Last registry action: May 18, 2006
- Mode S code: AA8868
- Owner when cancelled: [Monsen Scott E](https://openairdocs.org/faa-owner/MONSEN%20SCOTT%20E)
- Location: [Reno, NV](https://openairdocs.org/faa-place/NV/Reno)
- Owner type: Individual
- Owner's area on the map: 39.6988° N, 119.8263° W: Placed by OpenAirDocs at the center of ZIP code 89506, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N778T
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=778T
- Page: https://openairdocs.org/deregistered/N778T-2006-08-31

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 Thomas-Michael THORP T-18: https://openairdocs.org/model/thomas-michael-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 LAX06CA149](https://openairdocs.org/ntsb/LAX06CA149), Apr 28, 2006: M.C. Thomas Thorpe T-18 (N778T), Reno, NV, substantial damage. Probable cause: the pilot's failure to maintain directional control. A contributing factor was the certified flight instructor's inadequate supervision of the flight.

## 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 20060427006199A](https://openairdocs.org/incident/20060427006199A), Apr 27, 2006: Amtr THORPT18 (N778T), Reno, NV, Substantial damage. (-23) The pilot-in-command, serving as an instructor to the aircraft owner, was in the right seat when the private pilot receiving instruction, flying from the…

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