# Co-Z Development COZY MARK IV

- Type: Aircraft model (FAA registry)
- Registry code: 05612CJ
- Manufacturer (registry): CO-Z DEVELOPMENT CORP
- Model: COZY MARK IV
- Aircraft type: Fixed wing single engine
- Category: Airplane
- Engines: 1 · Reciprocating
- Seats: 4
- Weight class: Up to 12,499 lb
- Certification: Not type certificated
- Registered aircraft: 2
- Page: https://openairdocs.org/model/co-z-development-cozy-mark-iv

Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker.

## ADs that may apply (OpenAirDocs)

Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

None matched.

## Registered aircraft (2)

- [N14CZ](https://openairdocs.org/aircraft/N14CZ): [Hollingsworth Aaron](https://openairdocs.org/faa-owner/HOLLINGSWORTH%20AARON), [Denver, CO](https://openairdocs.org/faa-place/CO/Denver), S/N MK 0100
- [N44CZ](https://openairdocs.org/aircraft/N44CZ): [Heer James A](https://openairdocs.org/faa-owner/HEER%20JAMES%20A), [Lutz, FL](https://openairdocs.org/faa-place/FL/Lutz), built 1988, S/N 1

## 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 WPR22LA190](https://openairdocs.org/ntsb/WPR22LA190), May 25, 2022: Co-Z Development Cozy Mark IV (N44CZ), Page, AZ, substantial damage. Probable cause: The failure to install the correct fuse in the landing gear circuit.

## 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.

- [Incident 20140820014359I](https://openairdocs.org/incident/20140820014359I), Aug 20, 2014: Co-Z Development Corp COZY MARK IV (N14CZ), Spring, TX, Minor damage. Pilot landed aircraft then inadvertently bumped landing gear switch down and nose impacted the runway. The aircraft slide for about 100 feet. There was some…

## The same model under other registry codes

Amateur-built copies and renamed makers get their own codes.

- [Goodier G W/Goodier C M COZY MARK IV](https://openairdocs.org/model/goodier-g-w-goodier-c-m-cozy-mark-iv): 1 registered aircraft, registry code 056023A
- [Jones Timothy P COZY MARK IV](https://openairdocs.org/model/jones-timothy-p-cozy-mark-iv): 1 registered aircraft, registry code 05602PM
- [Pitzer D A/Pitzer P L COZY MARK IV](https://openairdocs.org/model/pitzer-d-a-pitzer-p-l-cozy-mark-iv): 1 registered aircraft, registry code 05603ZJ
- [Magill Stanley J COZY MARK IV](https://openairdocs.org/model/magill-stanley-j-cozy-mark-iv): 1 registered aircraft, registry code 056054D
- [Staben Jon C COZY MARK IV](https://openairdocs.org/model/staben-jon-c-cozy-mark-iv): 1 registered aircraft, registry code 05605GM
- [Richards Edmond A COZY MARK IV](https://openairdocs.org/model/richards-edmond-a-cozy-mark-iv): 1 registered aircraft, registry code 056068B
- [Fagerberg John COZY MARK IV](https://openairdocs.org/model/fagerberg-john-cozy-mark-iv): 1 registered aircraft, registry code 05606TE
- [Laundrie Kenneth COZY MARK IV](https://openairdocs.org/model/laundrie-kenneth-cozy-mark-iv): 1 registered aircraft, registry code 05607XE
- [Parmelee M/Parmelee N COZY MARK IV](https://openairdocs.org/model/parmelee-m-parmelee-n-cozy-mark-iv): 1 registered aircraft, registry code 05607XT
- [Cruger D J/Cruger L L COZY MARK IV](https://openairdocs.org/model/cruger-d-j-cruger-l-l-cozy-mark-iv): 1 registered aircraft, registry code 056101G
- [Stowitts Paul T COZY MARK IV](https://openairdocs.org/model/stowitts-paul-t-cozy-mark-iv): 1 registered aircraft, registry code 05610JA
- [Gimple Lloyd COZY MARK IV](https://openairdocs.org/model/gimple-lloyd-cozy-mark-iv): 1 registered aircraft, registry code 05613I1

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