# N123CB: Learjet 24D, registration cancelled 1971-08-03

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: August 3, 1971
- Status when cancelled: Valid registration
- Airframe: [Learjet 24D](https://openairdocs.org/model/learjet-24d) (registry code 5170310)
- Data sheets: [TCDS A10CE](https://openairdocs.org/tcds/A10CE) (OpenAirDocs)
- Serial number: 232
- Type of aircraft: Fixed wing multi engine
- Certificate issued: August 26, 1970
- Mode S code: A05F0B
- Owner when cancelled: [F & S Contracting Co](https://openairdocs.org/faa-owner/F%20%26%20S%20CONTRACTING%20CO)
- Location: [Butte, MT](https://openairdocs.org/faa-place/MT/Butte)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N123CB
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=123CB
- Page: https://openairdocs.org/deregistered/N123CB-1971-08-03

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 24D: https://openairdocs.org/model/learjet-24d.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 SEA71AS040](https://openairdocs.org/ntsb/SEA71AS040), Apr 17, 1971: Lear Jet 24D (N123CB), Butte, MT, destroyed, 4 fatal

## Other aircraft with N123CB

- [Registered now](https://openairdocs.org/aircraft/N123CB): Cessna 172M, S/N 17262283, built 1973
- [Cancelled (date not recorded)](https://openairdocs.org/deregistered/N123CB-undated): Piper PA-31-350, S/N 317752161. Triennial form not returned

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