Aircraft Description
N239SE is a 1972 Cessna 421B, a twin-engine reciprocating (piston) aircraft registered to Riley Charles Sweeney in Highlands Ranch, CO. The registration certificate was issued on November 1, 2023. The registration is set to expire on November 30, 2030. Powered by a Cont Motor GTSI0-520-F-K engine producing 435 horsepower, N239SE is. The aircraft's Mode S transponder code is A22B84 (hex), used for ADS-B identification and flight tracking. N239SE was last tracked by AviatorDB near Centennial Airport (KAPA) on March 13, 2026. The FAA registry record for N239SE was last updated on April 30, 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 N239SE. 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.
Registered Owner
Powerplant & Avionics
Additional Details
Last Known Position
Data Source
Data provided by the US Federal Aviation Administration. View on FAA.gov
Last updated: 2026-04-01 01:32:20 UTC