Aircraft Description
N504DH is a 1958 Sikorsky S58E, a single-engine reciprocating (piston) aircraft registered to Van Surdam John R in Seneca, SC. This aircraft holds a multiple airworthiness certificate issued by the Federal Aviation Administration on March 16, 1990. The registration certificate was issued on February 28, 2001. The registration is set to expire on July 31, 2029. Powered by a Wright R-1820 SER engine producing 1475 horsepower, N504DH is. The aircraft's Mode S transponder code is A6491F (hex), used for ADS-B identification and flight tracking. The FAA registry record for N504DH was last updated on August 18, 2023. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.
The Sikorsky S-58 was a pioneering anti-submarine helicopter that significantly advanced naval aviation capabilities in the 1950s. First flown in March 1954, it was a single-rotor helicopter powered by a Wright R-1820 radial engine, capable of carrying 12-16 passengers or sophisticated sonar equipment for submarine hunting. With a production run totaling over 2,300 aircraft including international variants, it was manufactured by Sikorsky Aircraft Corporation. AviatorDB tracks 843 Sikorsky aircraft currently registered in the FAA database. The ICAO type designator for this aircraft model is S58P.
AviatorDB has found no NTSB accident or incident reports involving N504DH. 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
Data Source
Data provided by the US Federal Aviation Administration. View on FAA.gov
Last updated: 2026-05-15 01:32:20 UTC