# N21HM: 1973 Mayse SPEZID SPORT, registration cancelled 2012-08-09

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: August 9, 2012
- Status when cancelled: Sale reported, canceled
- Airframe: [Mayse SPEZID SPORT](https://openairdocs.org/model/mayse-spezid-sport) (registry code 0562971)
- Engine: [Lycoming 0-290 series](https://openairdocs.org/engine/lycoming-0-290-series) (registry code 41506)
- Data sheets: [TCDS E-229](https://openairdocs.org/tcds/E-229) (OpenAirDocs)
- Serial number: 349
- Year built: 1973
- Type of aircraft: Fixed wing single engine
- Engine type: 4 cycle
- Airworthiness: Experimental, amateur built
- Airworthiness date: October 25, 1979
- Last registry action: August 21, 1991
- Mode S code: A1B7E4
- Location: [Tucson, AZ](https://openairdocs.org/faa-place/AZ/Tucson)
- Owner type: Individual
- Owner's area on the map: 32.2144° N, 110.8237° W: Placed by OpenAirDocs at the center of ZIP code 85710, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N21HM
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=21HM
- Page: https://openairdocs.org/deregistered/N21HM-2012-08-09

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 Mayse SPEZID SPORT: https://openairdocs.org/model/mayse-spezid-sport.md

## NTSB investigations (2)

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 LAX77FUQ37](https://openairdocs.org/ntsb/LAX77FUQ37), Jul 10, 1977: Spezio 1 (N21HM), Goleta, CA, substantial damage
- [NTSB LAX74DUG39](https://openairdocs.org/ntsb/LAX74DUG39), Jan 26, 1974: Spezio DAL-1 (N21HM), Redlands, CA, substantial damage

## Other aircraft with N21HM

- [Registered now](https://openairdocs.org/aircraft/N21HM): Dassault-Breguet MYSTERE FALCON 900, S/N 41, built 1988

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