- Manufacturer (registry)
- OLSON-COZY
- Model
- COZY MARK IV
- Registry code
- 05625UL
- Registered
- 0 aircraft
- Type
- Fixed wing single engine
- Engines
- 1 · Reciprocating
- Seats
- 4
- Weight class
- Up to 12,499 lb
- Certification
- Not type certificated
Model codes come from the FAA registry’s reference file. ADs are matched to them by model name and maker.
On this page
Airworthiness directives that may apply · 0
ADs whose products match this airframe model. Each AD’s applicability may narrow it by serial number, part number or configuration.
No ADs matched this model
Registered aircraft · 0
No aircraft currently registered with this model
NTSB investigations
No NTSB investigations matched to aircraft with this modelMatched through the registry by N-number, so foreign aircraft and some older cases aren’t counted.
FAA incident reports
No reports matched to aircraft of this modelMatched through the registry by N-number, so foreign aircraft and some older reports aren’t counted.
Service difficulty reports
No reports name this modelGeneral aviation reporting is voluntary.
The same model under other registry codes
Amateur-built copies and renamed makers get their own codes.
Co-Z Development COZY MARK IV2 registered aircraftGoodier G W/Goodier C M COZY MARK IV1 registered aircraftJones Timothy P COZY MARK IV1 registered aircraftPitzer D A/Pitzer P L COZY MARK IV1 registered aircraftMagill Stanley J COZY MARK IV1 registered aircraftStaben Jon C COZY MARK IV1 registered aircraftRichards Edmond A COZY MARK IV1 registered aircraftFagerberg John COZY MARK IV1 registered aircraftLaundrie Kenneth COZY MARK IV1 registered aircraftParmelee M/Parmelee N COZY MARK IV1 registered aircraftCruger D J/Cruger L L COZY MARK IV1 registered aircraftStowitts Paul T COZY MARK IV1 registered aircraft
Query with SQL
duckdb -csv -c "SELECT m.code, m.manufacturer, m.model, count(g.n_number) AS aircraft
FROM 'https://openairdocs.org/data/latest/faa_aircraft_model.parquet' m LEFT JOIN 'https://openairdocs.org/data/latest/faa_aircraft_registration.parquet' g ON g.aircraft_model_code = m.code
WHERE m.match_key = 'COZYMARKIV' AND m.code NOT IN ('05625UL')
GROUP BY ALL
ORDER BY aircraft DESC
LIMIT 12"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
SELECT m.code, m.manufacturer, m.model, count(g.n_number) AS aircraft
FROM 'https://openairdocs.org/data/latest/faa_aircraft_model.parquet' m LEFT JOIN 'https://openairdocs.org/data/latest/faa_aircraft_registration.parquet' g ON g.aircraft_model_code = m.code
WHERE m.match_key = 'COZYMARKIV' AND m.code NOT IN ('05625UL')
GROUP BY ALL
ORDER BY aircraft DESC
LIMIT 12Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.