N85303 - 1951 Grumman HU-16B Aircraft Registration

N85303 is a 1951 Grumman HU-16B, a twin-engine reciprocating (piston) aircraft registered to Duckbutt LLC in Castle Rock, CO. This aircraft holds a experimental airworthiness certificate issued by the Federal Aviation Administration on February 4, 2023. The registration certificate was issued on April 18, 2024. The registration is set to expire on April 30, 2031. Powered by a Wright R-1820 SER engine producing 1475 horsepower, N85303 is. The aircraft's Mode S transponder code is ABB4F1 (hex), used for ADS-B identification and flight tracking. N85303 was last tracked by AviatorDB at coordinates 29.2653, -94.8604 on June 14, 2025. The FAA registry record for N85303 was last updated on April 18, 2024. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

Grumman Aircraft (later Northrop Grumman) was a major American aircraft manufacturer known for naval fighters in World War II and the Apollo Lunar Module. In general aviation, the Grumman American AA-5 and Tiger series remain popular sport aircraft. AviatorDB tracks 473 Grumman aircraft currently registered in the FAA database, including the HU-16B model.

AviatorDB has found no NTSB accident or incident reports involving N85303. 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.