FlyCurrentFLYCURRENT
AA.II.C.S8FAA-S-ACS-11A · Nov 2023Skills

Demonstrate proper use of aircraft exterior lighting for day and night operations. If e...

ACS element text (the applicant demonstrates understanding of)

Demonstrate proper use of aircraft exterior lighting for day and night operations. If either condition is not available, the applicant explains the differences between exterior aircraft lighting used for day and night operations.

Bottom line

At all times before engine start, the anti-collision lights should be turned on. Exterior lights, such as landing and taxi lights, and wingtip strobes should be illuminated immediately prior to initiating the takeoff roll, day or night.

FAA references

  1. 14 CFR 91.209 (Aircraft lights.) — eCFR current as of 2026-03-05
  2. AFH ch. 13 (pp. 13-14–13-15) — FAA-H-8083-3C
  3. AFH ch. 2 (p. 2-16) — FAA-H-8083-3C
  4. AC 91-73, para. 7h — AC No: 91-73B
Members lesson

Build understanding you can use

Unlock the full lesson and continue studying this element.

  • Full teaching sections: Standard; Meeting it; Deviations; Practice
  • Check your understanding with answers you can reveal
View membership options