Aircraft Description
N441MD is a 1979 Cessna 441, a twin-engine turbo-prop aircraft registered to Keystone Aerial Surveys INC in Philadelphia, PA. This aircraft holds a restricted airworthiness certificate issued by the Federal Aviation Administration on December 15, 1992. The registration certificate was issued on September 14, 2019. The registration is set to expire on September 30, 2029. Powered by a Ama/expr UNKNOWN ENG engine, N441MD is. The aircraft's Mode S transponder code is A54F6B (hex), used for ADS-B identification and flight tracking. N441MD was last tracked by AviatorDB at coordinates 40.0824, -75.0106 on April 24, 2025. The FAA registry record for N441MD was last updated on September 2, 2023. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.
The Cessna 441 Conquest II was Cessna's first turboprop aircraft, marking the company's entry into the high-performance business aviation market. First flown in August 1975, it was a pressurized twin-turboprop monoplane that could seat up to 10 passengers and featured twin Garrett TPE331 engines producing 636 shaft horsepower each. With a service ceiling of 35,000 feet and maximum gross weight of 9,850 pounds, the aircraft was manufactured by Cessna Aircraft Company in Wichita, Kansas. AviatorDB tracks 80,556 Cessna aircraft currently registered in the FAA database. The ICAO type designator for this aircraft model is C441.
AviatorDB has found no NTSB accident or incident reports involving N441MD. 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
Operator / Airline
Powerplant & Avionics
Additional Details
Last Known Position
Data Source
Data provided by the US Federal Aviation Administration. View on FAA.gov
Last updated: 2026-05-15 01:32:20 UTC