# N4588U: 1984 Dart Robert G SKYCYCLE II

- Status: Valid registration
- Airframe: [Dart Robert G SKYCYCLE II](https://openairdocs.org/model/dart-robert-g-skycycle-ii) (registry code 056138S, 2 seats)
- Engine: [Cuyuna ALL MDLS A/B](https://openairdocs.org/engine/cuyuna-all-mdls-a-b) (registry code 19050)
- Serial number: ESRD3
- Year built: 1984
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: October 25, 1985
- Certificate issued: May 11, 2011
- Expires: May 31, 2027
- Mode S code: A59357
- Registered owner: [Radack Mary](https://openairdocs.org/faa-owner/RADACK%20MARY)
- Location: [Mayville, NY](https://openairdocs.org/faa-place/NY/Mayville)
- Owner type: Individual
- Owner's area on the map: 42.2375° N, 79.5053° W: Placed by OpenAirDocs at the center of ZIP code 14757, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4588U
- Page: https://openairdocs.org/aircraft/N4588U

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 (Dart Robert G SKYCYCLE II)

None in force.

### Matched by engine (Cuyuna ALL MDLS A/B)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N4588U.

## FAA accident and incident reports

None matched to N4588U.

## 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.

## Earlier aircraft with N4588U

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N4588U before.

- [Cancelled 1965-04-09](https://openairdocs.org/deregistered/N4588U-1965-04-09): Cessna 150, S/N 15060588

## Related

- Other Dart Robert G SKYCYCLE II aircraft: https://openairdocs.org/model/dart-robert-g-skycycle-ii/aircraft.md
- The Cuyuna ALL MDLS A/B engine: https://openairdocs.org/engine/cuyuna-all-mdls-a-b.md

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