N904CH - 1977 Sikorsky S-61N Aircraft Registration

N904CH is a 1977 Sikorsky S-61N, a twin-engine turbo-shaft aircraft registered to Construction Helicopters INC in Howell, MI. This aircraft holds a standard airworthiness certificate issued by the Federal Aviation Administration on September 9, 2025. The registration certificate was issued on June 27, 2025. The registration is set to expire on June 30, 2032. Powered by a Ge CT58-140-2 engine producing 1400 horsepower, N904CH is. The aircraft's Mode S transponder code is AC7E42 (hex), used for ADS-B identification and flight tracking. N904CH was last tracked by AviatorDB near Livingston County Spencer J. Hardy Airport (KOZW) on March 24, 2026. The FAA registry record for N904CH was last updated on June 27, 2025. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

Sikorsky Aircraft, a Lockheed Martin company based in Stratford, Connecticut, manufactures military and commercial helicopters. Known for the UH-60 Black Hawk and S-76 series, Sikorsky has been a leading rotorcraft manufacturer since 1923. AviatorDB tracks 843 Sikorsky aircraft currently registered in the FAA database, including the S-61N model.

AviatorDB has found no NTSB accident or incident reports involving N904CH. 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.