AA.VI.D.S10FAA-S-ACS-11A · Nov 2023Skills
Adjust the published MDA/Derived Decision Altitude (DDA) and visibility criteria for th...
Adjust the published MDA/Derived Decision Altitude (DDA) and visibility criteria for the aircraft approach category, as appropriate, for factors that include Notices to Air Missions (NOTAMs), inoperative aircraft or navigation equipment, or inoperative visual aids associated with the landing environment, etc.
Bottom line
The authorized MDA is the highest of the MDA prescribed by the approach procedure, the MDA prescribed for the pilot in command, and the MDA appropriate for the aircraft equipment available and used during the approach. The flight visibility must not be less than the visibility prescribed in the standard instrument approach being used.
FAA references
- 14 CFR 91.175 (Takeoff and landing under IFR.) — eCFR current as of 2026-03-05
- IFH ch. 9 (p. 9-31) — FAA-H-8083-15B
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