876 

14 CFR Ch. I (1–1–19 Edition) 

§ 171.317 

Where the physical characteristics of 
the approach region prevent 
theachievement of the standards under 
paragraphs (a) (1), (2), and (3) of this 

section, guidance need not be provided 
below a conical surface originating at 
the elevation antenna and inclined 0.9 
degree above the line of sight. 

VerDate Sep<11>2014 

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