N231NU - 1980 Mooney Aircraft Corp. M20K Aircraft Registration

N231NU is a 1980 Mooney Aircraft Corp. M20K, a single-engine reciprocating (piston) aircraft registered to Mcmillan Keith A in Milwaukee, WI. This aircraft holds a standard airworthiness certificate issued by the Federal Aviation Administration on February 21, 1980. The registration certificate was issued on December 6, 2012. The registration is set to expire on December 31, 2028. Powered by a Cont Motor TSIO-360 SER engine producing 225 horsepower, N231NU is. The aircraft's Mode S transponder code is A20D76 (hex), used for ADS-B identification and flight tracking. N231NU was last tracked by AviatorDB at coordinates 43.1104, -88.0344 on July 20, 2025. The FAA registry record for N231NU was last updated on July 1, 2023. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

The Mooney M-20, the fastest single-engine piston aircraft of its era, revolutionized efficient personal aviation when it first flew in September 1953. This low-wing, four-seat monoplane featured laminar-flow airfoils and innovative wooden construction that achieved speeds exceeding 200 miles per hour. Over 11,000 M-20s have been manufactured across 17 variants since production began in 1955, making it the most successful design by Al Mooney. The aircraft was produced by Mooney Aircraft Company in Kerrville, Texas. AviatorDB tracks 851 Mooney Aircraft Corp. aircraft currently registered in the FAA database. The ICAO type designator for this aircraft model is M20P.

AviatorDB has found no NTSB accident or incident reports involving N231NU. 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.