N4121D - 1957 Helio H-391B Aircraft Registration

N4121D is a 1957 Helio H-391B, a single-engine reciprocating (piston) aircraft registered to Sessions John L in Kirbyville, TX. This aircraft holds a standard airworthiness certificate issued by the Federal Aviation Administration on January 4, 1957. The registration certificate was issued on March 22, 2012. The registration is set to expire on March 31, 2028. Powered by a Lycoming GO-435C&D SER engine producing 260 horsepower, N4121D is. The aircraft's Mode S transponder code is A4DE0D (hex), used for ADS-B identification and flight tracking. The FAA registry record for N4121D was last updated on April 28, 2023. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

Helio is an aircraft manufacturer with aircraft registered in the FAA database tracked by AviatorDB. AviatorDB tracks 142 Helio aircraft currently registered in the FAA database, including the H-391B model.

AviatorDB has found no NTSB accident or incident reports involving N4121D. 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.