# N86TJ: Conrad Theodore J THORP T-18, registration cancelled 2011-01-31

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: January 31, 2011
- Status when cancelled: Valid registration
- Airframe: [Conrad Theodore J THORP T-18](https://openairdocs.org/model/conrad-theodore-j-thorp-t-18) (registry code 89510P6)
- 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: C-4602
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: March 17, 1987
- Certificate issued: January 5, 1987
- Last registry action: August 13, 2007
- Mode S code: ABCE30
- Owner when cancelled: [Conrad Theodore J](https://openairdocs.org/faa-owner/CONRAD%20THEODORE%20J)
- Location: [San Angelo, TX](https://openairdocs.org/faa-place/TX/San%20Angelo)
- Owner type: Individual
- Owner's area on the map: 31.2870° N, 100.4236° W: Placed by OpenAirDocs at the center of ZIP code 76904, within about 12 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N86TJ
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=86TJ
- Page: https://openairdocs.org/deregistered/N86TJ-2011-01-31

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 Conrad Theodore J THORP T-18: https://openairdocs.org/model/conrad-theodore-j-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 CEN11CA030](https://openairdocs.org/ntsb/CEN11CA030), Oct 13, 2010: Conrad Theodore J Thorp T-18 (N86TJ), Fredericksburg, TX, substantial damage. Probable cause: The malfunction of the throttle clamp, which resulted in the pilot's inability to control the engine's power setting.

## 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 20101013054439A](https://openairdocs.org/incident/20101013054439A), Oct 13, 2010: Thorp T-18 (N86TJ), Fredericksburg, TX, Substantial damage. N86TJ landed in the last 1000 ft. of RUNWAY32 at T82 and ran off the runway into a fence that was 733 ft. from the runway. This caused substantial damage.

## Other aircraft with N86TJ

- [Registered now](https://openairdocs.org/aircraft/N86TJ): Robinson Helicopter R44 II, S/N 12017, built 2007

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.