From Mats Part 1 CAP493, Appendix E
5.6 Pilot Read Back of RTF Messages
5.6.1 Pilots are required to read back in full messages containing any of the following items:
• Taxi instructions
• Level instructions
• Heading instructions
• Speed instructions
• Airways or route clearances
• Approach clearances
• Runway-in-use
• Clearance to enter, land on, take-off, backtrack, cross or hold short of any active
runway
• SSR operating instructions
• Altimeter settings
• VDF information
• Frequency changes
• Type of radar service
• Transition levels
5.6.2 Controllers are to prompt a pilot if a read back is not immediately forthcoming.
5.6.3 Errors in a read back must be corrected by the controller until the pilot gives an
accurate read back.