N3173U - 1963 Carson Helicopters / Sikorsky S61A Aircraft Registration

N3173U is a 1963 Carson Helicopters / Sikorsky S61A, a twin-engine turbo-shaft aircraft registered to Siller Helicopters LLC in Chamblee, GA. This aircraft holds a restricted airworthiness certificate issued by the Federal Aviation Administration on March 3, 2014. The registration certificate was issued on April 16, 2025. The registration is set to expire on May 31, 2027. Powered by a Ge CT58-140-1 engine producing 1400 horsepower, N3173U is. The aircraft's Mode S transponder code is A363A6 (hex), used for ADS-B identification and flight tracking. N3173U was last tracked by AviatorDB at coordinates 39.0948, -121.7177 on February 22, 2026. The FAA registry record for N3173U was last updated on May 24, 2011. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

The Sikorsky S-61A, a versatile twin-engine turbine helicopter, revolutionized both military anti-submarine warfare and commercial offshore operations. First flown in 1959 as the XHSS-2 Sea King prototype, it was a large amphibious helicopter powered by two General Electric turboshaft engines and capable of carrying up to 28 passengers or substantial cargo loads. With a main rotor diameter of 62 feet and maximum takeoff weight of 19,000 pounds, the S-61A became one of the most widely used helicopters of its era. The aircraft was manufactured by Sikorsky Aircraft Corporation from 1961 through 1980. AviatorDB tracks 1 Carson Helicopters / Sikorsky aircraft currently registered in the FAA database. The ICAO type designator for this aircraft model is S61.

AviatorDB has found no NTSB accident or incident reports involving N3173U. 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.