# N79FG: Matthias WM L BENCHMARK, registration cancelled 1983-04-08

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: April 8, 1983
- Status when cancelled: Valid registration
- Airframe: [Matthias WM L BENCHMARK](https://openairdocs.org/model/matthias-wm-l-benchmark) (registry code 0564698)
- Serial number: 01
- Type of aircraft: Fixed wing single engine
- Certificate issued: April 8, 1980
- Mode S code: AAB630
- Owner when cancelled: [Matthias William L](https://openairdocs.org/faa-owner/MATTHIAS%20WILLIAM%20L)
- Location: [Clearwater, KS](https://openairdocs.org/faa-place/KS/Clearwater)
- Owner type: Individual
- The mark today: https://openairdocs.org/aircraft/N79FG
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=79FG
- Page: https://openairdocs.org/deregistered/N79FG-1983-04-08

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 Matthias WM L BENCHMARK: https://openairdocs.org/model/matthias-wm-l-benchmark.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 MKC80FCQ19](https://openairdocs.org/ntsb/MKC80FCQ19), Jun 8, 1980: Benchmark 01 (N79FG), Newton, KS, destroyed, 1 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 19800608017979A](https://openairdocs.org/incident/19800608017979A), Jun 8, 1980: Amtr BENCHMARK (N79FG), Newton, KS, Destroyed. Performed abrupt pull-ups & dives at a low altitude on test flight of new airplane. Exceeded laod limits. Broke up.

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