# N56LU: Thorp T-18, registration cancelled 1977-11-01

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: November 1, 1977
- Status when cancelled: Valid registration
- Airframe: [Thorp T-18](https://openairdocs.org/model/thorp-t-18) (registry code 89510TJ)
- Serial number: 38
- Type of aircraft: Fixed wing single engine
- Certificate issued: June 11, 1975
- Mode S code: A7259E
- Owner when cancelled: [Dehr Richard R](https://openairdocs.org/faa-owner/DEHR%20RICHARD%20R)
- Location: [Topanga, CA](https://openairdocs.org/faa-place/CA/Topanga)
- Owner type: Individual
- The mark today: https://openairdocs.org/aircraft/N56LU
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=56LU
- Page: https://openairdocs.org/deregistered/N56LU-1977-11-01

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 LAX77FUQ39](https://openairdocs.org/ntsb/LAX77FUQ39), Jul 8, 1977: Thorp T-18 (N56LU), Van Nuys, CA, destroyed, 1 fatal

## Other aircraft with N56LU

- [Registered now](https://openairdocs.org/aircraft/N56LU): Textron 172S, S/N 172S11727, built 2016

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