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IFR ALTERNATE AIRPORT WEATHER MINIMUMS--OTHER THAN HELICOPTERS.

Subsection (c) of FAR 91.169, IFR flight plan: information required, determines what weather forecast must be available before naming a destination airport as an alternate when one is required. Here's what it says:

* To be a legal alternate, "appropriate weather reports or weather forecasts, or a combination of them, indicate that, at the estimated time of arrival at the alternate airport, the ceiling and visibility at that airport will be at or above the following weather minima:"

* "The alternate airport minima specified in that procedure, or if none are specified the following standard approach minima"

* For a precision approach procedure (ILS, GCA): Ceiling 600 feet and visibility of two statute miles.

* For a nonprecision approach procedure (LPV, LNAV, VOR, etc.): Ceiling 800 feet and visibility of two statute miles.

* "If no instrument approach procedure has been published...for the alternate airport, the ceiling and visibility minima are those allowing descent from the MEA, approach, and landing under basic VFR."

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Title Annotation:INSTRUMENT FLIGHT
Publication:Aviation Safety
Date:Feb 1, 2018
Words:160
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