Schosanski John H COZY MK IV R
N4518S is a Schosanski John H COZY MK IV R, a fixed-wing airplane with one motor with a rotary engine, built in 2012. It has 4 seats. It is registered to an individual in Napa, California. The registration is valid: it was issued on August 5, 2011 and expires on August 31, 2027. It holds an experimental airworthiness certificate for amateur built, dated May 31, 2012.
Aircraft
- Maker
- Schosanski John H
- Model
- COZY MK IV R
- Serial number
- 0329
- Type
- Fixed-wing, single engine
- Power
- Rotary, 1 motor · Mazda 13B · 146 hp
- Seats
- 4
- Year built
- 2012
- Transponder code
- A57954 (octal 51274524)
Registration
- Status
- Valid registration
- Certificate issued
- August 5, 2011
- Expires
- August 31, 2027
- Last FAA action
- March 10, 2023
- Airworthiness
- Experimental · Amateur built · May 31, 2012
- FAA region
- Western-Pacific
- FAA record id
- 01075697
Owner as the FAA publishes it
- Name
- Schosanski John H
- Type
- Individual
- Address
- 1135 Olive Hill Ln
Napa, CA 94558-2143
Owners can ask the FAA to withhold their name and address from public files. When they do, those fields are blank here as well. How that works.
Documents on file 0
No bills of sale, loans or other documents are indexed against this tail number.
Earlier use of this number 1
Records check free · 2 to understand · 3 clear
The public federal record on N4518S, read the way a buyer, lender or insurer reads it: FAA registration, prior tail numbers keyed on the serial number, reuse of the tail number, recent registry filings, and the NTSB accident record under this and every earlier registration.
Valid registration to Schosanski John H, an individual, certificate issued August 5, 2011, expires August 31, 2027. No fractional interest recorded. [1]
Experimental certificate for amateur built, dated May 31, 2012, consistent with the 2012 manufacture year. [1]
No earlier tail number is recorded against serial 0329 for this model in the deregistered file. [2]
N4518S was previously assigned to 1 other aircraft: Beech A36 (serial E717, cancelled May 17, 1994). Histories keyed to the tail number alone can mix aircraft up; this check keys on the serial number. [2]
No bills of sale, loans or releases have reached the registry in recent weeks. The index covers only recent filings; older liens are in the records file. [3]
3 NTSB records under N4518S: Accident on January 4, 2017 at Napa, CA: no injuries, substantial damage. Accident on July 28, 1993 at Houghton, MI: serious injuries, destroyed. Accident on September 4, 1982 at Shawnee, OK: no injuries, substantial damage. Details below. [4]
These live in the FAA aircraft records file (every document ever filed against the aircraft) and, for larger aircraft, the International Registry. Part of the full report.
AD compliance against the logbooks and flight-activity reconciliation are researched layers of the full report.
NTSB records 3
Aircraft on the NTSB record: Schosanski John H COZY MK IV R · operated under 091
A partial loss of power due to missing apex seals.
Search the NTSB's CAROL system for WPR17LA048 for the docket and final report. Open CAROL
Aircraft on the NTSB record: Beech A-36 · operated under 091
the pilot-in-command not following instrument procedures by not using the correct altimeter setting as issued by Air Traffic Control.
Search the NTSB's CAROL system for CHI93LA291 for the docket and final report. Open CAROL
Aircraft on the NTSB record: Beech A36 · operated under 091
Search the NTSB's CAROL system for FTW82DA369 for the docket and final report. Open CAROL
- FAA Releasable Aircraft Database, master file, file of October 2, 2026. registry.faa.gov/
- FAA deregistered aircraft file (part of the same download), file of October 2, 2026. registry.faa.gov/
- FAA document index: registry documents received in recent weeks, file of October 2, 2026. registry.faa.gov/
- NTSB aviation accident database (CAROL), records through August 27, 2026. data.ntsb.gov/carol-main-public/basic-search
This automated check reads the public federal record. Nothing here is a legal opinion, an appraisal or a statement about the aircraft's condition; a CLEAR line is a statement about the searched record, not the aircraft.
Source: FAA Civil Aviation Registry, Releasable Aircraft Database, October 2, 2026. See this record on the FAA site · This record as data