# N628X: 2016 Charles Joseph Ross MK-4

- Status: Valid registration
- Airframe: [Charles Joseph Ross MK-4](https://openairdocs.org/model/charles-joseph-ross-mk-4) (registry code 05635OH, 2 seats)
- Engine: [Rotax 912UL](https://openairdocs.org/engine/rotax-912ul) (registry code 55592)
- Serial number: 001
- Year built: 2016
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: August 13, 2026
- Certificate issued: July 8, 2026
- Expires: July 31, 2033
- Mode S code: A83602
- Registered owner: [Hallmark Damon](https://openairdocs.org/faa-owner/HALLMARK%20DAMON)
- Location: [Cullman, AL](https://openairdocs.org/faa-place/AL/Cullman)
- Owner type: Individual
- Owner's area on the map: 34.1512° N, 86.7587° W: Placed by OpenAirDocs at the center of ZIP code 35055, 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=628X
- Page: https://openairdocs.org/aircraft/N628X

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 (Charles Joseph Ross MK-4)

None in force.

### Matched by engine (Rotax 912UL)

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 ERA18LA239](https://openairdocs.org/ntsb/ERA18LA239), Aug 30, 2018: Avid MK-4 (N628X), Harnett, NC, substantial damage. Probable cause: A total loss of engine power for reasons that could not be determined based on the available information.

## 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 20180830025109A](https://openairdocs.org/incident/20180830025109A), Aug 30, 2018: Charles Joseph Ross MK-4 (N628X), Erwin, NC, Substantial damage. PIC stated that he had about 5 gal of fuel left and decided to land at harnett co (hrj) and the engine quit before he got to the airport. The aircraft landed…

## 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 N628X

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N628X before.

- [Cancelled 2004-08-27](https://openairdocs.org/deregistered/N628X-2004-08-27): Schempp-Hirth STANDARD AUSTRIA SH1, S/N 54, built 1964. Triennial form not returned. Owner: [Pears James R](https://openairdocs.org/faa-owner/PEARS%20JAMES%20R), [Kirkwood, MO](https://openairdocs.org/faa-place/MO/Kirkwood)

## Related

- Other Charles Joseph Ross MK-4 aircraft: https://openairdocs.org/model/charles-joseph-ross-mk-4/aircraft.md
- The Rotax 912UL engine: https://openairdocs.org/engine/rotax-912ul.md

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