# N6004A: Dehavilland DHC-1 SERIES 22

- Status: Valid registration
- Airframe: [Dehavilland DHC-1 SERIES 22](https://openairdocs.org/model/dehavilland-dhc-1-series-22) (registry code 2801714, 2 seats)
- Engine: [Brist Sid GIPSY](https://openairdocs.org/engine/brist-sid-gipsy) (registry code 10010)
- Serial number: C1-0509
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, exhibition
- Airworthiness date: January 17, 1985
- Certificate issued: November 23, 1984
- Expires: October 31, 2028
- Mode S code: A7CA24
- Registered owners: [Tuckness Maralyn G](https://openairdocs.org/faa-owner/TUCKNESS%20MARALYN%20G), [Tuckness Floyd J](https://openairdocs.org/faa-owner/TUCKNESS%20FLOYD%20J)
- Location: [Winlock, WA](https://openairdocs.org/faa-place/WA/Winlock)
- Owner type: Partnership
- Owner's area on the map: 46.4923° N, 122.9527° W: Placed by OpenAirDocs at the center of ZIP code 98596, 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=6004A
- Page: https://openairdocs.org/aircraft/N6004A

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 (Dehavilland DHC-1 SERIES 22)

None in force.

### Matched by engine (Brist Sid GIPSY)

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 SEA97LA209](https://openairdocs.org/ntsb/SEA97LA209), Sep 13, 1997: de Havilland DHC-1 (N6004A), Winlock, WA, substantial damage. Probable cause: the pilot's failure to attain proper alignment during touchdown and failure to maintain directional control. A wet runway was a factor.

## 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 19970913045429A](https://openairdocs.org/incident/19970913045429A), Sep 13, 1997: Dhav DHC1 (N6004A), Winlock, WA, Substantial damage. (.4) The pilot reported that while on final approach the airplane was too high. The pilot slipped the airplane to reduce altitude and held that attitude until…

## 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 N6004A

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N6004A before.

- [Cancelled 1984-11-20](https://openairdocs.org/deregistered/N6004A-1984-11-20): Cessna 172, S/N 28604. Exported to Canada. Owner: [Tuckness Floyd J](https://openairdocs.org/faa-owner/TUCKNESS%20FLOYD%20J), [Kent, WA](https://openairdocs.org/faa-place/WA/Kent)

## Related

- Other Dehavilland DHC-1 SERIES 22 aircraft: https://openairdocs.org/model/dehavilland-dhc-1-series-22/aircraft.md
- The Brist Sid GIPSY engine: https://openairdocs.org/engine/brist-sid-gipsy.md

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