# N4PV: 1976 Thorp T-18, registration cancelled 2012-11-15

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: November 15, 2012
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Thorp T-18](https://openairdocs.org/model/thorp-t-18) (registry code 89510T7)
- Engine: [Lycoming 0-290 series](https://openairdocs.org/engine/lycoming-0-290-series) (registry code 41506)
- Data sheets: [TCDS E-229](https://openairdocs.org/tcds/E-229) (OpenAirDocs)
- Serial number: 495
- Year built: 1976
- Type of aircraft: Fixed wing single engine
- Engine type: 4 cycle
- Airworthiness: Experimental, amateur built
- Airworthiness date: April 2, 1980
- Certificate issued: April 28, 1983
- Last registry action: July 1, 1989
- Mode S code: A4A948
- Owners when cancelled: [Vandenbos Cornelius M](https://openairdocs.org/faa-owner/VANDENBOS%20CORNELIUS%20M), [Vandenbos Eleanore M](https://openairdocs.org/faa-owner/VANDENBOS%20ELEANORE%20M)
- Location: [Bensonville, IL](https://openairdocs.org/faa-place/IL/Bensonville)
- Owner type: Co-owned
- Owner's area on the map: 41.9644° N, 87.9441° W: Placed by OpenAirDocs at the center of ZIP code 60106, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4PV
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4PV
- Page: https://openairdocs.org/deregistered/N4PV-2012-11-15

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 Thorp T-18: https://openairdocs.org/model/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 CHI92DEE02](https://openairdocs.org/ntsb/CHI92DEE02), Jun 13, 1992: Vandenbos/Thorp T-18 (N4PV), Schaumburg, IL, destroyed. Probable cause: SHORTING OF CONDENSERS ON BOTH MAGNETOS. A FACTOR WAS INADEQUATE MAINTENANCE SERVICING OF THE AIRPLANE BY OTHER MAINTNEANCE PERSONNEL.

## FAA accident and incident reports (3)

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 19920613019869A](https://openairdocs.org/incident/19920613019869A), Jun 13, 1992: Amtrth THORPT18 (N4PV), Chicago/Schaumb, IL, Destroyed. Engine quit on takeoff. Crash landed in a pond. Both mags inop. Shorted. Burned pitted points. Mags corroded.
- [Incident 19901019054189I](https://openairdocs.org/incident/19901019054189I), Oct 19, 1990: Amtrth THORPT18 (N4PV), Chicago/West Ch, IL, Minor damage. Pilot over corrected with forward pitch on landing. Propeller struck runway.
- [Incident 19860828053009I](https://openairdocs.org/incident/19860828053009I), Aug 28, 1986: Amtrth THORPT18 (N4PV), West Chicago, IL, Minor damage. Veered off side of runway after crosswind landing. Touchdown was left of center line of runway.

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