# N831HC: 2017 Mark Coby EARLY BIRD JENNY

- Status: Valid registration
- Airframe: [Mark Coby EARLY BIRD JENNY](https://openairdocs.org/model/mark-coby-early-bird-jenny) (registry code 05636PW, 2 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 532
- Year built: 2017
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: August 4, 2019
- Certificate issued: November 13, 2017
- Expires: November 30, 2027
- Mode S code: AB5CC3
- Registered owners: [Coby Mark E](https://openairdocs.org/faa-owner/COBY%20MARK%20E), [Knight Kent D](https://openairdocs.org/faa-owner/KNIGHT%20KENT%20D)
- Location: [Kernersville, NC](https://openairdocs.org/faa-place/NC/Kernersville)
- Owner type: Partnership
- Owner's area on the map: 36.1161° N, 80.0819° W: Placed by OpenAirDocs at the center of ZIP code 27284, 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=831HC
- Page: https://openairdocs.org/aircraft/N831HC

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 (Mark Coby EARLY BIRD JENNY)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB WPR21FA210](https://openairdocs.org/ntsb/WPR21FA210), May 27, 2021: Mark Coby Early Bird Jenny (N831HC), Stoneville, NC, destroyed, 1 fatal. Probable cause: The pilot’s exceedance of the airplane’s critical angle of attack during the takeoff initial climb, which resulted in an aerodynamic stall and a loss of control.

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20210527006279A](https://openairdocs.org/incident/20210527006279A), May 27, 2021: Mark Coby EARLY BIRD JENNY (N831HC), Stoneville, NC, Destroyed, 1 fatal. This was the second flight in the aircraft for the day but the first flight in the aircraft on that day for this pilot. The pilot taxied from his hangar to…

## 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 Mark Coby EARLY BIRD JENNY aircraft: https://openairdocs.org/model/mark-coby-early-bird-jenny/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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