Single-engine piston

N121DD

2013 Homebuilt Mustang II

Registered 1 NTSB/FAA record
Built
2013
Serial
12136
Class
Single-engine piston
Engines
Lycoming O-320-D3G
Status
Current as of October 2026
Registered owner
Individual · sign in to see
Based
Pueblo West, CO
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Registration record

N121DD on the FAA register

Type
2013 Homebuilt Mustang II
Serial
12136
Engines
Lycoming O-320-D3G
Registered owner
Individual — the name of an individual registrant is shown to signed-in users. Sign in
Pueblo West, CO
Certificate issued
2021-09-15
Airworthiness date
2018-07-19
Registration expires
2028-09-30
Airworthiness class
Experimental · amateur-built
Mode S (hex)
A057B8
Mode S (octal)
50053670
Seats (type)
2
Weight class
up to 12,499 lb
Kit
Mustang Aeronautics MUSTANG II
Status
Current as of October 2026
Registry history

Timeline

  • 2028-09-30
    Registration expires (renewal due).
  • 2022-02-20
    Accident at Cheyenne, WY; damage: substantial.
  • 2021-09-15
    Certificate of registration issued as N121DD to the current registrant.
  • 2018-07-19
    Airworthiness date on the current FAA record (experimental category (amateur-built)).
  • 2013
    Manufactured (2013).
  • 1996-08-06
    N121DD previously assigned to a Burkhart Grob G-109B (s/n 6240); cancelled.
Overview

About N121DD

N121DD is a 2013 Homebuilt Mustang II, serial number 12136. It is registered to an individual in Pueblo West, Colorado. The current certificate of registration was issued on September 15, 2021 and expires on September 30, 2028.

The FAA aircraft reference file describes the type as a single-engine piston, one Lycoming O-320-D3G engine and 2 seats. Its airworthiness certificate is experimental category (amateur-built), dated July 19, 2018.

N121DD has 1 accident/incident record on file (most serious damage: substantial); details are below.

Safety record

Accident & incident history

2022-02-20 Accident · Cheyenne, WY Damage: Substantial NTSB · WPR22LA102
Reported aircraft: Darrell D. Dugger Mustang II
Probable cause: The pilot s failure to maintain directional control during the takeoff roll which resulted in an aborted takeoff and collision with terrain.

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 Colorado· 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.