N21HK - 1976 Grumman American Avn. Corp. AA-5A Aircraft Registration

N21HK is a 1976 Grumman American Avn. Corp. AA-5A, a single-engine reciprocating (piston) aircraft registered to Sims Nathaniel Merriman in Boston, MA. This aircraft holds a standard airworthiness certificate issued by the Federal Aviation Administration on April 12, 2022. The registration certificate was issued on August 11, 2025. The registration is set to expire on August 31, 2032. Powered by a Lycoming O-320-E2G engine producing 150 horsepower, N21HK is. The aircraft's Mode S transponder code is A1B7E2 (hex), used for ADS-B identification and flight tracking. N21HK was last tracked by AviatorDB at coordinates 44.8888, -72.2292 on July 1, 2025. The FAA registry record for N21HK was last updated on August 11, 2025. 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 1,674 Grumman American Avn. Corp. aircraft currently registered in the FAA database, including the AA-5A model.

AviatorDB has found no NTSB accident or incident reports involving N21HK. 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.