Single-engine turboprop

N3121

Homebuilt Comp Air 7

Registered No accidents on file
Built
—
Serial
017273
Class
Single-engine turboprop
Engines
Ama/Expr UNKNOWN ENG
Status
Current as of October 2026
Registered owner
Amphib Wings LLC (LLC)
Based
Jefferson City, MO
Registration record

N3121 on the FAA register

Type
Homebuilt Comp Air 7
Serial
017273
Engines
Ama/Expr UNKNOWN ENG
Registered owner
Amphib Wings LLC
Jefferson City, MO
Certificate issued
2024-11-18
Airworthiness date
2002-04-25
Registration expires
2031-11-30
Airworthiness class
Experimental · amateur-built
Mode S (hex)
A350BA
Mode S (octal)
50650272
Seats (type)
4
Weight class
up to 12,499 lb
Kit
Aerocomp Inc COMP AIR 7
Status
Current as of October 2026
Registry history

Timeline

  • 2031-11-30
    Registration expires (renewal due).
  • 2024-11-18
    Certificate of registration issued as N3121 to the current registrant.
  • 2002-04-25
    Airworthiness date on the current FAA record (experimental category (amateur-built)).
  • 1977-08-18
    N3121 previously assigned to a Homebuilt Bensen Gyrocopter B- (s/n 1); cancelled.
  • 1971-08-31
    N3121 previously assigned to a Homebuilt B-8M (s/n RX7464); cancelled.
Overview

About N3121

N3121 is a Homebuilt Comp Air 7, serial number 017273. The FAA register lists Amphib Wings LLC as the registrant in Jefferson City, Missouri. The current certificate of registration was issued on November 18, 2024 and expires on November 30, 2031.

The FAA aircraft reference file describes the type as a single-engine turboprop, one Ama/Expr UNKNOWN ENG engine and 4 seats. Its airworthiness certificate is experimental category (amateur-built), dated April 25, 2002.

No NTSB accident or incident reports and no FAA preliminary notices are on file for this airframe as N3121. 1 earlier record involves a different aircraft that carried the same N-number.

Safety record

Accident & incident history

1977-06-11 Accident · Berryville,Ar, 04 Damage: Destroyed NTSB · 3 1218
Reported aircraft: Bensen B8M — a different aircraft that carried the N3121 registration before this airframe.

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 Missouri· 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.