# N18FL: Lanier Frank J THORP T-18, registration cancelled 1989-12-11

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: December 11, 1989
- Status when cancelled: N-number assigned, not yet registered
- Airframe: [Lanier Frank J THORP T-18](https://openairdocs.org/model/lanier-frank-j-thorp-t-18) (registry code 89510M3)
- Serial number: 555
- Type of aircraft: Fixed wing single engine
- Mode S code: A13EDB
- The mark today: https://openairdocs.org/aircraft/N18FL
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=18FL
- Page: https://openairdocs.org/deregistered/N18FL-1989-12-11

From the FAA registry file of November 5, 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 Lanier Frank J THORP T-18: https://openairdocs.org/model/lanier-frank-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 DEN90DTE01](https://openairdocs.org/ntsb/DEN90DTE01), Nov 24, 1989: Lanier Thorp T-18 (N18FL), Colorado City, CO, destroyed, 1 fatal. Probable cause: LOSS OF ENGINE POWER WITH CARBON FOULING OF THE SPARK PLUGS, AND FAILURE OF THE PILOT TO MAINTAIN ADEQUATE AIRSPEED, WHICH RESULTED IN AN INADVERTENT STALL.

## 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 19891124046569A](https://openairdocs.org/incident/19891124046569A), Nov 24, 1989: Amtrth THORPT18 (N18FL), Colorado City, CO, Destroyed, 1 fatal. Trailed blue smoke on climbout, stalled and hit ground near vertical impact. Prop damage indicates not under power.

## Other aircraft with N18FL

- [Registered now](https://openairdocs.org/aircraft/N18FL): Moncrief Keith D SERIES 5 KITFOX, S/N 59860157
- [Cancelled 2005-03-22](https://openairdocs.org/deregistered/N18FL-2005-03-22): Moncrief Keith D CH 601 HDS, S/N 6-3073, built 1995. Second triennial mailing, no response. Owner: [Moncrief Keith D](https://openairdocs.org/faa-owner/MONCRIEF%20KEITH%20D), [Jacksonville, FL](https://openairdocs.org/faa-place/FL/Jacksonville)

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