AC 20-37E, ADVISORY CIRCULAR, AIRCRAFT PROPELLER MAINTENANCE (9 SEP 2005)
AC 20-37E, ADVISORY CIRCULAR, AIRCRAFT PROPELLER MAINTENANCE (9 SEP 2005)., This advisory circular (AC) provides information and describes maintenance procedures for owners, operators, and Federal Aviation Administration (FAA)-certificated maintenance personnel during the service life of aircraft propellers. It further recommends minimum requirements for propeller field maintenance and provides a checklist for propeller annual inspection.