Twin piston

N421AG

1979 Cessna 421C

Registered 1 NTSB/FAA record
Built
1979
Serial
421C-0663
Class
Twin piston
Engines
2 × Continental GTSIO-520 series
Status
Current as of October 2026
Registered owner
Farm Flysician LLC (LLC)
Based
Ardmore, OK
What's N421AG worth? Track flights
1979 Cessna 421C
Representative photo of a Cessna 421C. Not a photo of N421AG.
Registration record

N421AG on the FAA register

Type
1979 Cessna 421C
Serial
421C-0663
Engines
2 × Continental GTSIO-520 series
Registered owner
Farm Flysician LLC
Ardmore, OK
Certificate issued
2025-07-11
Airworthiness date
1999-08-31
Registration expires
2032-07-31
Airworthiness class
Standard · normal
Mode S (hex)
A4FF5D
Mode S (octal)
51177535
Seats (type)
8
Weight class
up to 12,499 lb
Range (type)
1,197 nm
Cruise (type)
241 kt
Status
Current as of October 2026
Market asking range
$300,000 to $549,000
Middle half of 43 live Cessna 421C listings, 1976–1984 models (median $439,000). Asking prices, not an appraisal of N421AG.
Registry history

Timeline

  • 2032-07-31
    Registration expires (renewal due).
  • 2025-07-11
    Certificate of registration issued as N421AG to the current registrant.
  • 1999-08-31
    Airworthiness date on the current FAA record (standard category (normal)).
  • 1995-04-17
    N421AG previously assigned to a Cessna 421C (s/n 421C0843); cancelled.
  • 1994-06-15
    Accident at Carlsbad, CA; damage: destroyed.
  • 1979
    Manufactured (1979).
  • 1973-02-12
    N421AG previously assigned to a Cessna 421A (s/n 421A-0123); cancelled.
Overview

About N421AG

N421AG is a 1979 Cessna 421C, serial number 421C-0663. The FAA register lists Farm Flysician LLC as the registrant in Ardmore, Oklahoma. The current certificate of registration was issued on July 11, 2025 and expires on July 31, 2032.

The FAA aircraft reference file describes the type as a twin piston, two Continental GTSIO-520 series engines and 8 seats. Published figures for the type give a cruise speed of about 241 knots and a range of about 1,197 nm; actual performance depends on configuration, load and conditions. Its airworthiness certificate is standard category (normal), dated August 31, 1999.

N421AG has 1 accident/incident record on file (most serious damage: destroyed); details are below.

Cruise
241 kt
Range
1,197 nm
Power / thrust (each)
375
Takeoff over 50 ft
2,323 ft
Landing over 50 ft
2,293 ft
Fuel burn
47 gph

Published figures for the Cessna 421C type. They describe the model, not this airframe's equipment or condition. Cessna 421C specs, prices and for-sale inventory →

Safety record

Accident & incident history

1994-06-15 Accident · Carlsbad, CA Damage: Destroyed Fatal injury NTSB · LAX94FA257
Reported aircraft: Cessna 421C
Probable cause: A LOSS OF ENGINE POWER FOR UNDETERMINED REASONS. THE PILOT'S FAILURE TO RAISE THE FLAPS AND MAINTAIN ALTITUDE WERE FACTORS IN THE ACCIDENT.

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

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Browse: Cessna aircraft for sale· Cessna 421C overview· Aircraft registered in Oklahoma· 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.