# N413H: 1971 Helmick HP-11A

- Status: Valid registration
- Airframe: [Helmick HP-11A](https://openairdocs.org/model/helmick-hp-11a) (registry code 0562077, 1 seats)
- Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000)
- Serial number: 48
- Year built: 1971
- Type: Glider
- Engine type: None
- Airworthiness: Experimental, amateur built
- Airworthiness date: November 20, 1979
- Certificate issued: July 28, 1971
- Expires: October 31, 2027
- Mode S code: A4DFF4
- Registered owner: [Helmick Hugh M](https://openairdocs.org/faa-owner/HELMICK%20HUGH%20M)
- Location: [Ridgecrest, CA](https://openairdocs.org/faa-place/CA/Ridgecrest)
- Owner type: Individual
- Owner's area on the map: 35.5824° N, 117.6836° W: Placed by OpenAirDocs at the center of ZIP code 93555, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=413H
- Page: https://openairdocs.org/aircraft/N413H

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 (Helmick HP-11A)

None in force.

### Matched by engine (NONE)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N413H.

## FAA accident and incident reports

None matched to N413H.

## 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 Helmick HP-11A aircraft: https://openairdocs.org/model/helmick-hp-11a/aircraft.md
- The NONE engine: https://openairdocs.org/engine/none.md

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