Single-engine piston

N4086K

1966 Homebuilt RK2

Registered 1 NTSB/FAA record
Built
1966
Serial
1
Class
Single-engine piston
Engines
Lycoming O-235 series
Status
Current as of October 2026
Registered owner
Individual · sign in to see
Based
Vacaville, CA
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Registration record

N4086K on the FAA register

Type
1966 Homebuilt RK2
Serial
1
Engines
Lycoming O-235 series
Registered owner
Individual — the name of an individual registrant is shown to signed-in users. Sign in
Vacaville, CA
Certificate issued
2000-12-11
Airworthiness date
1980-09-26
Registration expires
2029-04-30
Airworthiness class
Experimental · amateur-built
Mode S (hex)
A4CD8D
Mode S (octal)
51146615
Seats (type)
2
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2029-04-30
    Registration expires (renewal due).
  • 2000-12-11
    Certificate of registration issued as N4086K.
  • 1980-09-26
    Airworthiness date on the current FAA record (experimental category (amateur-built)).
  • 1972-12-18
    Accident at Soledad,Calif, 05; damage: substantial.
  • 1966
    Manufactured (1966).
Overview

About N4086K

N4086K is a 1966 Homebuilt RK2, serial number 1. It is registered to an individual in Vacaville, California. The current certificate of registration was issued on December 11, 2000 and expires on April 30, 2029.

The FAA aircraft reference file describes the type as a single-engine piston, one Lycoming O-235 series engine and 2 seats. Its airworthiness certificate is experimental category (amateur-built), dated September 26, 1980.

N4086K has 1 accident/incident record on file (most serious damage: substantial); details are below.

Safety record

Accident & incident history

1972-12-18 Accident · Soledad,Calif, 05 Damage: Substantial NTSB · 3 3904
Reported aircraft: Jungster Ii RK-2

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 California· 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.