# N427BJ: 2004 Darling Robert L HELICYCLE

- Status: Valid registration
- Airframe: [Darling Robert L HELICYCLE](https://openairdocs.org/model/darling-robert-l-helicycle) (registry code 05617XQ, 1 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 02-08 T1
- Year built: 2004
- Type: Rotorcraft
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: July 21, 2006
- Certificate issued: January 26, 2022
- Expires: January 31, 2029
- Mode S code: A515C2
- Registered owner: [Sherman Michael P](https://openairdocs.org/faa-owner/SHERMAN%20MICHAEL%20P)
- Location: [Racine, WI](https://openairdocs.org/faa-place/WI/Racine)
- Owner type: Individual
- Owner's area on the map: 42.6842° N, 87.8155° W: Placed by OpenAirDocs at the center of ZIP code 53403, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=427BJ
- Page: https://openairdocs.org/aircraft/N427BJ

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 (Darling Robert L HELICYCLE)

None in force.

### Matched by engine (Amateur-built UNKNOWN ENG)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N427BJ.

## FAA accident and incident reports

None matched to N427BJ.

## 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 Darling Robert L HELICYCLE aircraft: https://openairdocs.org/model/darling-robert-l-helicycle/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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