# N996HC: 2021 Calk William H JR LONG EZ

- Status: Valid registration
- Airframe: [Calk William H JR LONG EZ](https://openairdocs.org/model/calk-william-h-jr-long-ez) (registry code 0563390, 2 seats)
- Engine: [Aerosport O/IO-320 series](https://openairdocs.org/engine/aerosport-o-io-320-series) (registry code 01307)
- Serial number: 001
- Year built: 2021
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: September 15, 2021
- Certificate issued: June 1, 2015
- Expires: June 30, 2028
- Mode S code: ADE99F
- Registered owner: [Calk William H Jr](https://openairdocs.org/faa-owner/CALK%20WILLIAM%20H%20JR)
- Location: [Clarksville, MD](https://openairdocs.org/faa-place/MD/Clarksville)
- Owner type: Individual
- Owner's area on the map: 39.2139° N, 76.9595° W: Placed by OpenAirDocs at the center of ZIP code 21029, 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=996HC
- Page: https://openairdocs.org/aircraft/N996HC

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. The registry lists only the engine series, so ADs for every Aerosport O/IO-320 model are included.

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

### Matched by airframe (Calk William H JR LONG EZ)

None in force.

### Matched by engine (Aerosport O/IO-320 series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N996HC.

## FAA accident and incident reports

None matched to N996HC.

## 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 Calk William H JR LONG EZ aircraft: https://openairdocs.org/model/calk-william-h-jr-long-ez/aircraft.md
- The Aerosport O/IO-320 series engine: https://openairdocs.org/engine/aerosport-o-io-320-series.md

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