# N587MM: 2012 William D Stigers HARMON ROCKET II

- Status: Valid registration
- Airframe: [William D Stigers HARMON ROCKET II](https://openairdocs.org/model/william-d-stigers-harmon-rocket-ii) (registry code 056302H, 2 seats)
- Engine: [Lycoming IO-540-EXP](https://openairdocs.org/engine/lycoming-io-540-exp) (registry code 42167)
- Serial number: 310
- Year built: 2012
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Kit: Harmon Rocket LLC HARMON ROCKET II
- Airworthiness: Experimental, amateur built
- Airworthiness date: October 19, 2012
- Certificate issued: August 24, 2024
- Expires: August 31, 2031
- Mode S code: A79108
- Registered owner: [Martin Michael](https://openairdocs.org/faa-owner/MARTIN%20MICHAEL)
- Location: [Prescott, AZ](https://openairdocs.org/faa-place/AZ/Prescott)
- Owner type: Individual
- Owner's area on the map: 34.5981° N, 112.4202° W: Placed by OpenAirDocs at the center of ZIP code 86301, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=587MM
- Page: https://openairdocs.org/aircraft/N587MM

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (William D Stigers HARMON ROCKET II)

None in force.

### Matched by engine (Lycoming IO-540-EXP)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N587MM.

## FAA accident and incident reports

None matched to N587MM.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Related

- Other William D Stigers HARMON ROCKET II aircraft: https://openairdocs.org/model/william-d-stigers-harmon-rocket-ii/aircraft.md
- The Lycoming IO-540-EXP engine: https://openairdocs.org/engine/lycoming-io-540-exp.md

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