AI.II.I.K13FAA-S-ACS-25 · Nov 2023Knowledge

Inflight intercept procedures.

ACS element text (the applicant demonstrates understanding of)

Inflight intercept procedures.

Bottom line

If intercepted, adhere without delay to instructions relayed through visual devices, visual signals, and radio communications from the intercepting aircraft. Attempt radio communications on guard frequencies 121.5 or 243.0 MHz, giving identity, position, and nature of the flight. If transponder equipped, select Mode 3/A Code 7700 unless otherwise instructed by air traffic control. Continue to comply with interceptor signals and instructions until positively released.

Key numbers

Key numbers for Inflight intercept procedures.
NumberWhat it means
121.5 or 243.0 MHz (general call on guard, giving identity, position, and nature of the flight)Guard frequencies
Mode 3/A Code 7700 (if transponder equipped, unless otherwise instructed by ATC)Squawk 7700

FAA references

  1. AIM 5-6-13 (Interception Procedures) — AIM Basic 2/20/25 w/ Change 1 (8/7/25) & Change 2 (1/22/26)
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