Light jet

N121MG

1978 Homebuilt MIG 21

Registered No accidents on file
Built
1978
Serial
433372128
Class
Light jet
Engines
Ama/Expr UNKNOWN ENG
Status
Current as of October 2026
Registered owner
Cavanaugh Air LLC (LLC)
Based
Addison, TX
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Registration record

N121MG on the FAA register

Type
1978 Homebuilt MIG 21
Serial
433372128
Engines
Ama/Expr UNKNOWN ENG
Registered owner
Cavanaugh Air LLC
Addison, TX
Certificate issued
2016-05-24
Airworthiness date
1995-06-30
Registration expires
2029-05-31
Airworthiness class
Experimental · exhibition
Mode S (hex)
A05883
Mode S (octal)
50054203
Seats (type)
1
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2029-05-31
    Registration expires (renewal due).
  • 2016-05-24
    Certificate of registration issued as N121MG.
  • 1995-06-30
    Airworthiness date on the current FAA record (experimental category (exhibition)).
  • 1978
    Manufactured (1978).
Overview

About N121MG

N121MG is a 1978 Homebuilt MIG 21, serial number 433372128. The FAA register lists Cavanaugh Air LLC as the registrant in Addison, Texas. The current certificate of registration was issued on May 24, 2016 and expires on May 31, 2029.

The FAA aircraft reference file describes the type as a light jet, one Ama/Expr UNKNOWN ENG engine and 1 seats. Its airworthiness certificate is experimental category (exhibition), dated June 30, 1995.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N121MG.

Safety record

Accident & incident history

✓ No NTSB accident or incident reports and no FAA preliminary notices on file for N121MG.

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 Texas· 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.