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AA.II.A.R1FAA-S-ACS-11A · Nov 2023Risk management

Human performance factors.

ACS element text (the applicant demonstrates understanding of)

Human performance factors.

Bottom line

Duck-under syndrome A pilot may be tempted to make it into an airport by descending below minimums during an approach. Earlier it was suggested pilots set their own personal minimums, especially when it comes to weather.

FAA references

  1. AFH ch. 2 (p. 2-12) — FAA-H-8083-3C
  2. PHAK ch. 2 (p. 2-22) — FAA-H-8083-25C (2023)
  3. AIH ch. 1 (pp. 1-5–1-6) — FAA-H-8083-9B
  4. RMH ch. 5 (p. 5-2) — FAA-H-8083-2A
  5. 14 CFR 61.31 (Type rating requirements, additional training, and authorization requirements.) — eCFR current as of 2026-03-05
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