# N4975M: not currently registered

- Registered now: No (not in the FAA registry file). The mark may be reserved or free to assign
- Earlier aircraft: 1
- Last cancelled: September 16, 1952
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4975M
- Page: https://openairdocs.org/aircraft/N4975M

## Aircraft that carried N4975M

- [Cancelled 1952-09-16](https://openairdocs.org/deregistered/N4975M-1952-09-16): Piper PA-11, S/N 11-463. Owner: [Zochowski Frank Felix](https://openairdocs.org/faa-owner/ZOCHOWSKI%20FRANK%20FELIX), [Romeo, MI](https://openairdocs.org/faa-place/MI/Romeo)

## NTSB investigations on N4975M (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 LAX86LA028](https://openairdocs.org/ntsb/LAX86LA028), Oct 27, 1985: S. Piccolotto/Dave Morss Cassutt SH-1 (N4975M), San Carlos, CA, substantial damage

## FAA accident and incident reports on N4975M (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 19851027054169A](https://openairdocs.org/incident/19851027054169A), Oct 27, 1985: Amtrsx CASSUTT1 (N4975M), San Carlos, CA, Substantial damage. Gear collapsed during forced landing in rough terrain due to engine roughness. Carburetor mixture shaft worn.

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