CA.III.B.R1FAA-S-ACS-7B · Nov 2023Risk management
Collision hazards.
Collision hazards.
Bottom line
No person may operate an aircraft so close to another aircraft as to create a collision hazard. Any aircraft that appears to have no relative motion and stays in one scan quadrant is likely to be on a collision course.
FAA references
- 14 CFR 91.111 (Operating near other aircraft.) — eCFR current as of 2026-03-05
- 14 CFR 91.113 (Right-of-way rules: Except water operations.) — eCFR current as of 2026-03-05
- 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)
- PHAK ch. 14 (p. 14-28) — FAA-H-8083-25C (2023)
- 14 CFR 91.221 (Traffic alert and collision avoidance system equipment and use.) — eCFR current as of 2026-03-05
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