CESSNA 421 TURBINE — Supplemental Type Certificate

This document is an Advisory Circular (AC 60-25D) issued by the Federal Aviation Administration (FAA) that provides reference materials and subject matter knowledge codes for airman knowledge testing. It is intended for pilots, instructors, flight engineers, dispatchers, navigators, pilot examiners, inspection authorization, and parachute riggers. The circular includes listings of reference materials that are essential for preparing for airman knowledge tests and outlines the subject matter knowledge codes to assist in reviewing areas of deficiency on test reports. The document serves as a comprehensive guide for understanding the regulatory framework and knowledge requirements for various aviation certifications.

• This document is an FAA advisory circular (AC 60-25D) dated June 9, 2000.
• It provides reference materials and subject matter knowledge codes for airman knowledge testing.
• The circular is intended for various aviation professionals including pilots and instructors.
• It includes listings of reference materials essential for preparing for airman knowledge tests.
• The document can be accessed electronically through the FAA's Regulatory Support Division website.