Staging copy. The live site is at https://staging.data.eflight.com.
eFlight RegistryFAA data, updated daily
Registered aircraft · FAA record as of September 25, 2026
N4518S

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

1994-05-17Beech A36 · Valid registration

Source: FAA Civil Aviation Registry, Releasable Aircraft Database, September 25, 2026. See this record on the FAA site · This record as data