PA.IV.L.R4FAA-S-ACS-6C · Nov 2023Risk management

Collision hazards.

ACS element text (the applicant demonstrates understanding of)

Collision hazards.

Bottom line

Smoke, haze, dust, rain, and flying towards the sun can also greatly reduce the ability to detect targets. If the other aircraft shows no lateral or vertical motion, but is increasing in size, the observing pilot needs to take immediate evasive action to avoid a collision.

FAA references

  1. AIM 8-1-8 (Judgment Aspects of Collision Avoidance) — AIM Basic 2/20/25 w/ Change 1 (8/7/25) & Change 2 (1/22/26)
  2. AFH ch. 1 (pp. 1-11–1-12) — FAA-H-8083-3C
  3. AIM 4-3-24 (Use of Aircraft Lights) — AIM Basic 2/20/25 w/ Change 1 (8/7/25) & Change 2 (1/22/26)
  4. PHAK ch. 14 (p. 14-28) — FAA-H-8083-25C (2023)
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