# N366AA: Gates Lear Jet 25B, registration cancelled 1975-02-07

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: February 7, 1975
- Status when cancelled: Valid registration
- Airframe: [Gates Lear Jet 25B](https://openairdocs.org/model/gates-lear-jet-25b) (registry code 5170511)
- Data sheets: [TCDS A10CE](https://openairdocs.org/tcds/A10CE) (OpenAirDocs)
- Serial number: 151
- Type of aircraft: Fixed wing multi engine
- Certificate issued: February 5, 1974
- Mode S code: A42297
- Owner when cancelled: [Trans Union Aircraft Leasing Corp](https://openairdocs.org/faa-owner/TRANS%20UNION%20AIRCRAFT%20LEASING%20CORP)
- Location: [Chicago, IL](https://openairdocs.org/faa-place/IL/Chicago)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N366AA
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=366AA
- Page: https://openairdocs.org/deregistered/N366AA-1975-02-07

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 Gates Lear Jet 25B: https://openairdocs.org/model/gates-lear-jet-25b.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 DEN75AD007](https://openairdocs.org/ntsb/DEN75AD007), Aug 31, 1974: Gates Lear 25B (N366AA), Briggsdale, CO, destroyed, 4 fatal

## 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 19740831040719A](https://openairdocs.org/incident/19740831040719A), Aug 31, 1974: Lear 25B (N366AA), Briggsdale, CO, Destroyed, 1 fatal. Unusual attitude practice. Full nose down trim. Misc-unable to retrim acft for undetermined reason

## Other aircraft with N366AA

- [Registered now](https://openairdocs.org/aircraft/N366AA): DJI T20P, S/N 1581F574B224A00100DV

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