CA.III.A.S3FAA-S-ACS-7B · Nov 2023Skills

Acknowledge radio communications and comply with ATC instructions or as directed by the...

ACS element text (the applicant demonstrates understanding of)

Acknowledge radio communications and comply with ATC instructions or as directed by the evaluator.

Bottom line

Pilots operating from a towered airport are required to maintain two-way radio communication with ATC and to acknowledge and comply with their instructions. Pilots must advise ATC if they cannot comply with the instructions issued and request amended instructions. A pilot may deviate from an air traffic instruction in an emergency, but must advise ATC of the deviation as soon as possible.

FAA references

  1. PHAK ch. 14 (p. 14-2) — FAA-H-8083-25C (2023)
  2. PHAK ch. 14 (p. 14-23) — FAA-H-8083-25C (2023)
  3. AIM 2-1-6 (Runway Status Light (RWSL) System) — AIM Basic 2/20/25 w/ Change 1 (8/7/25) & Change 2 (1/22/26)
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