# N31CK: 1965 Learjet 23, registration cancelled 2013-04-29

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: April 29, 2013
- Status when cancelled: Sale reported, pending cancellation
- Airframe: [Learjet 23](https://openairdocs.org/model/learjet-23) (registry code 5170102)
- Engine: [GE CJ610-SER series](https://openairdocs.org/engine/ge-cj610-ser-series) (registry code 30006)
- Data sheets: [TCDS A5CE](https://openairdocs.org/tcds/A5CE), [TCDS 1E16](https://openairdocs.org/tcds/1E16) (OpenAirDocs)
- Serial number: 079
- Year built: 1965
- Type of aircraft: Fixed wing multi engine
- Engine type: Turbo-jet
- Airworthiness: Standard, normal
- Airworthiness date: December 23, 1965
- Last registry action: June 24, 2002
- Mode S code: A344B4
- Location: [Okla City, OK](https://openairdocs.org/faa-place/OK/Okla%20City)
- Owner type: Individual
- Owner's area on the map: 35.4676° N, 97.5164° W: Placed by OpenAirDocs: center of Oklahoma City, OK, within about 14 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N31CK
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=31CK
- Page: https://openairdocs.org/deregistered/N31CK-2013-04-29

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 Learjet 23: https://openairdocs.org/model/learjet-23.md

## 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.

- [Incident 19790404013509I](https://openairdocs.org/incident/19790404013509I), Apr 4, 1979: Lear 23LEAR (N31CK), Vandalia, OH. Primary nose wheel steering system failed. Secondary system not activated in time to avoid going off the runway.

## Other aircraft with N31CK

- [Registered now](https://openairdocs.org/aircraft/N31CK): Cirrus Design SR20, S/N 2604, built 2020

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