PA.XI.A.R1FAA-S-ACS-6C · Nov 2023Risk management

Collision hazards.

ACS element text (the applicant demonstrates understanding of)

Collision hazards.

Bottom line

Exterior lights, such as landing and taxi lights, and wingtip strobes should be illuminated immediately prior to initiating the takeoff roll, day or night. If holding in takeoff position for any length of time, particularly at night, the pilot should activate all exterior lights upon taxiing into position.

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. PHAK ch. 17 (p. 17-23) — FAA-H-8083-25C (2023)
  3. PHAK ch. 17 (p. 17-25) — FAA-H-8083-25C (2023)
  4. PHAK ch. 14 (p. 14-34) — FAA-H-8083-25C (2023)
  5. AIM 8-1-6 (Vision in Flight) — AIM Basic 2/20/25 w/ Change 1 (8/7/25) & Change 2 (1/22/26)
  6. PHAK ch. 14 (p. 14-28) — FAA-H-8083-25C (2023)
  7. AFH ch. 13 (p. 13-15) — FAA-H-8083-3C
  8. RMH ch. 3 (p. 3-8) — FAA-H-8083-2A
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