# N51706: Langley 2-4-90, registration cancelled 1965-12-10

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: December 10, 1965
- Status when cancelled: Valid registration
- Airframe: [Langley 2-4-90](https://openairdocs.org/model/langley-2-4-90) (registry code 5130102)
- Data sheets: [TCDS TC 755](https://openairdocs.org/tcds/TC%20755) (OpenAirDocs)
- Serial number: 3
- Type of aircraft: Fixed wing multi engine
- Certificate issued: August 25, 1965
- Mode S code: A67DE7
- Owner when cancelled: [John L Pierce](https://openairdocs.org/faa-owner/JOHN%20L%20PIERCE)
- Location: [Tulsa, OK](https://openairdocs.org/faa-place/OK/Tulsa)
- Owner type: Individual
- The mark today: https://openairdocs.org/aircraft/N51706
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=51706
- Page: https://openairdocs.org/deregistered/N51706-1965-12-10

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 Langley 2-4-90: https://openairdocs.org/model/langley-2-4-90.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 FTW66F0333](https://openairdocs.org/ntsb/FTW66F0333), Sep 26, 1965: Langley 2-4-90 (N51706), Tulsa, OK, destroyed

## Other aircraft with N51706

- [Cancelled 2010-08-26](https://openairdocs.org/deregistered/N51706-2010-08-26): CGS Hawk CGS HAWK, S/N 001. Triennial form not returned. Owner: [Cola Ronald G](https://openairdocs.org/faa-owner/COLA%20RONALD%20G), [Mentor, OH](https://openairdocs.org/faa-place/OH/Mentor)

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