N503DK - 2001 Francois Tillmann Challenger II Aircraft Registration

N503DK is a 2001 Francois Tillmann CHALLENGER II, a single-engine two-cycle piston aircraft registered to Kroesch Donald F in Minooka, IL. This aircraft holds a experimental airworthiness certificate issued by the Federal Aviation Administration on February 22, 2022. The registration certificate was issued on August 22, 2024. The registration is set to expire on August 31, 2031. Powered by a Rotax 503 DCDI engine producing 52 horsepower, N503DK is. The aircraft's Mode S transponder code is A6456A (hex), used for ADS-B identification and flight tracking. The FAA registry record for N503DK was last updated on September 25, 2025. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

Francois Tillmann is an aircraft manufacturer with aircraft registered in the FAA database tracked by AviatorDB. AviatorDB tracks 1 Francois Tillmann aircraft currently registered in the FAA database, including the CHALLENGER II model.

AviatorDB has found no NTSB accident or incident reports involving N503DK. 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.