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IR.II.C.K1FAA-S-ACS-8C · Nov 2023Knowledge

Purpose of performing an instrument flight deck check and how to detect possible defects.

ACS element text (the applicant demonstrates understanding of)

Purpose of performing an instrument flight deck check and how to detect possible defects.

Bottom line

Pilots have attempted instrument takeoff with inoperative airspeed indicators (pitot tube obstructed), controls locked, and numerous other oversights due to haste or carelessness.

Key numbers

Key numbers for Purpose of performing an instrument flight deck check and how to detect possible defects.
NumberWhat it means
20 knots true airspeed before airspeed is indicated in some systemsASI alive

FAA references

  1. IFH ch. 7 (p. 7-61) — FAA-H-8083-15B
  2. PHAK ch. 2 (p. 2-23) — FAA-H-8083-25C (2023)
  3. AFH ch. 12, Operational Procedures (pp. 12-14–12-15) — FAA-H-8083-3C
  4. RMH ch. 3 (p. 3-4) — FAA-H-8083-2A
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