# N28HM: 1971 Scorpion SP-B, registration cancelled 2007-03-12

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 12, 2007
- Status when cancelled: Triennial form not returned
- Airframe: [Scorpion SP-B](https://openairdocs.org/model/scorpion-sp-b) (registry code 0560238)
- Serial number: 22071
- Year built: 1971
- Type of aircraft: Rotorcraft
- Certificate issued: March 16, 1971
- Last registry action: January 18, 2005
- Mode S code: A2CC5D
- Owner when cancelled: [Miller Hap C](https://openairdocs.org/faa-owner/MILLER%20HAP%20C)
- Location: [Kenwood, CA](https://openairdocs.org/faa-place/CA/Kenwood)
- Owner type: Individual
- Owner's area on the map: 38.4296° N, 122.5367° W: Placed by OpenAirDocs at the center of ZIP code 95452, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N28HM
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=28HM
- Page: https://openairdocs.org/deregistered/N28HM-2007-03-12

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 Scorpion SP-B: https://openairdocs.org/model/scorpion-sp-b.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 OAK72DVD04](https://openairdocs.org/ntsb/OAK72DVD04-162469), Jul 13, 1971: Rotorways Scorpi (N28HM), Santa Rosa, CA, substantial damage

## Other aircraft with N28HM

- [Cancelled 2021-11-13](https://openairdocs.org/deregistered/N28HM-2021-11-13): Miller Hap C HELICYCLE, S/N 11137. Registration expired, pending cancellation. Owner: [Miller Hap C](https://openairdocs.org/faa-owner/MILLER%20HAP%20C), [Kenwood, CA](https://openairdocs.org/faa-place/CA/Kenwood)

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