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CA.II.D.K5FAA-S-ACS-7B · Nov 2023Knowledge

Aircraft lighting, as appropriate.

ACS element text (the applicant demonstrates understanding of)

Aircraft lighting, as appropriate.

Bottom line

Aircraft position lights are required to be lighted on aircraft operated on the surface and in flight from sunset to sunrise.

Key numbers

Key numbers for Aircraft lighting, as appropriate.
NumberWhat it means
sunset to sunrise, on the surface and in flightPosition lights
below 10,000 feet, day or nightLanding lights
all operations, day and nightAnti-collision

FAA references

  1. AIM 4-3-24 (Use of Aircraft Lights) — AIM Basic 2/20/25 w/ Change 1 (8/7/25) & Change 2 (1/22/26)
  2. PHAK ch. 14 (p. 14-31) — FAA-H-8083-25C (2023)
  3. AIM 4-3-13 (Traffic Control Light Signals) — AIM Basic 2/20/25 w/ Change 1 (8/7/25) & Change 2 (1/22/26)
  4. AFH ch. 11 (p. 11-6) — FAA-H-8083-3C
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