N421AG - 1979 Cessna 421C Aircraft Registration

C421

1979 CESSNA 421C

Aircraft Description

N421AG is a 1979 Cessna 421C, a twin-engine reciprocating (piston) aircraft registered to Farm Flysician LLC in Ardmore, OK. This aircraft holds a standard airworthiness certificate issued by the Federal Aviation Administration on August 31, 1999. The registration certificate was issued on July 11, 2025. The registration is set to expire on July 31, 2032. Powered by a Cont Motor GTSIO-520 SER engine producing 300 horsepower, N421AG is. The aircraft's Mode S transponder code is A4FF5D (hex), used for ADS-B identification and flight tracking. N421AG was last tracked by AviatorDB at coordinates 34.2122, -97.4704 on February 20, 2026. The FAA registry record for N421AG was last updated on August 6, 2025. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

The Cessna 421 Golden Eagle was a pressurized twin-engine aircraft that brought high-altitude comfort to the business aviation market at a fraction of turboprop costs. First flown on May 1, 1967, it was a low-wing monoplane powered by two Continental GTSIO-520 turbocharged engines, seating six to eight occupants. With a service ceiling of 30,000 feet and cruise speed of 277 mph, the 421 spanned 43 feet 2 inches with a length of approximately 39 feet. Cessna Aircraft Company manufactured 1,901 examples between 1967 and 1985. AviatorDB tracks 80,556 Cessna aircraft currently registered in the FAA database. The ICAO type designator for this aircraft model is C421.

AviatorDB has found no NTSB accident or incident reports involving N421AG. AviatorDB cross-references all FAA registration data with NTSB accident and incident reports, providing a comprehensive safety overview for every registered aircraft in the United States.

Model Year
1979
Manufacturer
CESSNA
Model
421C
Type Aircraft
Fixed Wing Multi Engine
ICAO Type Code
C421421 Executive Commuter
Cruise Speed
90 mph
Weight Class
Up to 12,500 lbs
Airworthiness Date
August 31, 1999
Classification
Standard Normal Category
Type Registration
LLC
Status
Valid Registration
Cert Issue Date
July 11, 2025

Registered Owner

Name
FARM FLYSICIAN LLC
Address
677 RIDGEVIEW RD
City
ARDMORE
State / Zip Code
Oklahoma73401-7664
Country
United States

Powerplant & Avionics

Engine Type
Reciprocating
Number of Engines
2
Engine Manufacturer
CONT MOTOR
Engine Model
GTSIO-520 SER
Horsepower
300 HP
Mode S Code (Oct)
51177535
Mode S Code (Hex)
A4FF5D

Additional Details

Registration
N421AG
Serial Number
421C-0663
Number of Engines
2
Number of Seats
8
Expiration Date
July 31, 2032
Last Action Date
August 6, 2025
Last Update Date
January 19, 2026
Unique ID
00235862

Last Known Position

Date
February 20, 2026 (UTC 00:05:40)
Airport
Latitude
34.212158
Longitude
-97.470423

Data Source

Data provided by the US Federal Aviation Administration. View on FAA.gov

Last updated: 2026-04-01 01:32:20 UTC