When ATC instruction includes numerical values, what is provided in your readback if required?

• A. Repeat the entire instruction word for word
• B. Provide a readback of critical values only if requested
• C. Read back only the numbers
• D. Provide a readback of critical values

Answer: (D)

The important idea is confirming numeric data in ATC instructions. When an instruction includes numbers, you should read back the essential numbers to verify you understood them correctly. These critical values are the exact figures that drive what you do next—altitude or flight level, heading or course, airspeed, frequencies, squawk codes, and the altimeter setting. Repeating these values back ensures the controller can hear a precise match and catch any misheard digits. You don’t need to recite the entire sentence word for word, and you shouldn’t focus only on digits without tying them to the instruction’s action. Providing a readback of the critical values is the proper way to confirm the instruction is understood.