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4 years, 6 months ago
As far as I know, a brown airport on the low en-route chart does not have an approach procedure but blue and green airports do. But what exactly are the differences between these colors?
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Dec 8, 2018 at 20:35
Mun Park Mun Park
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From the FAA Aeronautical Chart User's Guide:
Facilities in BLUE or GREEN have an approved Instrument Approach
Procedure and/or RADAR MINIMA published in either the FAA Terminal
Procedures Publication or the DoD FLIPs. Those in BLUE have an
Instrument Approach Procedure and/or RADAR MINIMA published at least
in the High Altitude DoD FLIPs. Facilities in BROWN do not have a
published Instrument Procedure or RADAR MINIMA.
So the green ones are in the FAA TPP but not in the DoD High Altitude FLIPs.
Dec 8, 2018 at 21:22
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