# Herzstein Donald L COZY IV

- Type: Aircraft model (FAA registry)
- Registry code: 05612GS
- Manufacturer (registry): HERZSTEIN DONALD L
- Model: COZY 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: 1
- Page: https://openairdocs.org/model/herzstein-donald-l-cozy-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 (1)

- [N82V](https://openairdocs.org/aircraft/N82V): [Stypinski Stephen M](https://openairdocs.org/faa-owner/STYPINSKI%20STEPHEN%20M), [Yucca Valley, CA](https://openairdocs.org/faa-place/CA/Yucca%20Valley), S/N 0379

## 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 WPR21LA071](https://openairdocs.org/ntsb/WPR21LA071), Nov 17, 2020: Co Z Cozy (N82V), Compton, CA, substantial damage. Probable cause: The partial loss of engine power due to an improperly installed sparkplug.

## FAA accident and incident reports (2)

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 20201117019599A](https://openairdocs.org/incident/20201117019599A), Nov 17, 2020: Herzstein Donald L COZY IV (N82V), Compton, CA, Substantial damage. On November 17, 2020, at approx. 1415 local time, N82V, a Cozy IV certificated in the experimental armature built category landed on runway 25L at cpm (Compton…
- [Incident 20040909021729I](https://openairdocs.org/incident/20040909021729I), Sep 9, 2004: Amtr COZYMKIV (N82V), Chino, CA, Minor damage. (-23) Mr. Herzstein landed his cozy iv aircraft on cno rwy 26R nose gear up.

## The same model under other registry codes

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

- [Cockrell Mike COZY IV](https://openairdocs.org/model/cockrell-mike-cozy-iv): 1 registered aircraft, registry code 05621AC
- [Steven W Harmon COZY IV](https://openairdocs.org/model/steven-w-harmon-cozy-iv): 1 registered aircraft, registry code 05633S1
- [Barcelona Russell J COZY IV](https://openairdocs.org/model/barcelona-russell-j-cozy-iv): 1 registered aircraft, registry code 05637X6
- [Satchell Michael L COZY IV](https://openairdocs.org/model/satchell-michael-l-cozy-iv): 1 registered aircraft, registry code 0563856
- [David W Gestl COZY IV](https://openairdocs.org/model/david-w-gestl-cozy-iv): 1 registered aircraft, registry code 05638LE
- [Cerney John COZY IV](https://openairdocs.org/model/cerney-john-cozy-iv): 1 registered aircraft, registry code 056408C
- [Mahmood Tehrani COZY IV](https://openairdocs.org/model/mahmood-tehrani-cozy-iv): 0 registered aircraft, registry code 05631NE
- [Khalid Numan Shuwayhat COZY IV](https://openairdocs.org/model/khalid-numan-shuwayhat-cozy-iv): 0 registered aircraft, registry code 05633FF

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.