# N1637A: 1951 Piper PA-18, registration cancelled 2019-11-01

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: November 1, 2019
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Piper PA-18](https://openairdocs.org/model/piper-pa-18) (registry code 7101802)
- Engine: [Lycoming 0-290 series](https://openairdocs.org/engine/lycoming-0-290-series) (registry code 41506)
- Data sheets: [TCDS 1A2](https://openairdocs.org/tcds/1A2), [TCDS E-229](https://openairdocs.org/tcds/E-229) (OpenAirDocs)
- Serial number: 18-1282
- Year built: 1951
- Type of aircraft: Fixed wing single engine
- Engine type: 4 cycle
- Airworthiness: Standard
- Certificate issued: December 18, 1975
- Last registry action: May 29, 2016
- Mode S code: A10021
- Owner when cancelled: [Hendricks James L](https://openairdocs.org/faa-owner/HENDRICKS%20JAMES%20L)
- Location: [Ekalaka, MT](https://openairdocs.org/faa-place/MT/Ekalaka)
- Owner type: Individual
- Owner's area on the map: 45.7689° N, 104.5692° W: Placed by OpenAirDocs at the center of ZIP code 59324, within about 21 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N1637A
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=1637A
- Page: https://openairdocs.org/deregistered/N1637A-2019-11-01

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 Piper PA-18: https://openairdocs.org/model/piper-pa-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 MKC71DDQ02](https://openairdocs.org/ntsb/MKC71DDQ02), Jul 6, 1970: Piper PA-18 (N1637A), Ludlow, SD, substantial damage

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