FAA Maintenance requirements ecks Maintenance required every 60 hours of flying Airlines maintain aircraft every 40-45 hours of flying with the maximum time between checks restricted to three to four calendar days 2/212021 Barnhart 1.206J/16.77J/ESD. 15J2/21/2021 Barnhart 1.206J/16.77J/ESD.215J 7 FAA Maintenance Requirements • “A” Checks – Maintenance required every 60 hours of flying – Airlines maintain aircraft every 40-45 hours of flying with the maximum time between checks restricted to three to four calendar days