Single-engine piston

N31939

2018 Homebuilt Cozy MKIV

Registered 1 NTSB/FAA record
Built
2018
Serial
1212
Class
Single-engine piston
Engines
Lycoming IO-320 series
Status
Current as of October 2026
Registered owner
Individual · sign in to see
Based
Layton, UT
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Registration record

N31939 on the FAA register

Type
2018 Homebuilt Cozy MKIV
Serial
1212
Engines
Lycoming IO-320 series
Registered owner
Individual — the name of an individual registrant is shown to signed-in users. Sign in
Layton, UT
Certificate issued
2017-10-31
Airworthiness date
2018-02-24
Registration expires
2027-10-31
Airworthiness class
Experimental · amateur-built
Mode S (hex)
A36B23
Mode S (octal)
50665443
Seats (type)
4
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2027-10-31
    Registration expires (renewal due).
  • 2018-02-24
    Airworthiness date on the current FAA record (experimental category (amateur-built)).
  • 2017-10-31
    Certificate of registration issued as N31939 to the current registrant.
  • 2010-11-03
    N31939 previously assigned to a Homebuilt Long EZ (s/n 001); cancelled.
  • 2010-08-29
    Accident at Afton, WY; damage: substantial.
  • 1974-08-06
    N31939 previously assigned to a Aeronca 65-LB (s/n LB12171); cancelled.
Overview

About N31939

N31939 is a 2018 Homebuilt Cozy MKIV, serial number 1212. It is registered to an individual in Layton, Utah. The current certificate of registration was issued on October 31, 2017 and expires on October 31, 2027.

The FAA aircraft reference file describes the type as a single-engine piston, one Lycoming IO-320 series engine and 4 seats. Its airworthiness certificate is experimental category (amateur-built), dated February 24, 2018.

N31939 has 1 accident/incident record on file (most serious damage: substantial); details are below.

Safety record

Accident & incident history

2010-08-29 Accident · Afton, WY Damage: Substantial NTSB · WPR10CA437
Reported aircraft: Holt Herbert L Long EZ
Probable cause: The pilot's failure to securely lock the canopy prior to takeoff, which allowed the contents of the cabin to exit the airplane and damage the propeller. Contributing to the severity of the damage was the subsequent fire that ensued.

Sources: NTSB aviation accident database and CAROL case system, FAA preliminary accident & incident notices. Search accident records

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Browse: Aircraft registered in Utah· Registry by state· FAA registry stats

Data: FAA Aircraft Registry (October 2026), including deregistered aircraft; NTSB and FAA accident data; fyiAero listing history. Individual owners' names are shown to signed-in users and street addresses are never shown. Type figures are published specifications, not this aircraft's.