# N745F: Learjet 23, registration cancelled 1990-02-13

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: February 13, 1990
- Status when cancelled: Triennial form not returned
- Airframe: [Learjet 23](https://openairdocs.org/model/learjet-23) (registry code 5170102)
- Data sheets: [TCDS A5CE](https://openairdocs.org/tcds/A5CE) (OpenAirDocs)
- Serial number: 077
- Type of aircraft: Fixed wing multi engine
- Mode S code: AA059A
- The mark today: https://openairdocs.org/aircraft/N745F
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=745F
- Page: https://openairdocs.org/deregistered/N745F-1990-02-13

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

## 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 LAX88FA274](https://openairdocs.org/ntsb/LAX88FA274), Jul 30, 1988: Learjet 23 (N745F), Perris, CA, destroyed, 2 fatal. Probable cause: THE PILOT DECIDED TO CONDUCT HIS FLIGHT WITH KNOWN AIRCRAFT DEFICIENCIES. INDUCED COMPANY PRESSURE TO DELIVER THE AIRCRAFT TO ITS DESTINATION IS CONSIDERED TO HAVE BEEN A FACTOR IN THE ACCIDENT.

## 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.

- [Accident 19880730028329A](https://openairdocs.org/incident/19880730028329A), Jul 30, 1988: Lear 23LEAR (N745F), Riverside, CA, Destroyed, 2 fatal. Had uneven fuel flow and imbalance. Diverted to nearest airport, crashed and burned. Yaw damper inop.

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