Determining WAAS coverage

Discussion in 'Pilot Training' started by Guy Morton, Dec 10, 2020.

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  1. Guy Morton

    Guy Morton Filing Flight Plan

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    I'm getting ready for my instrument written a digging through some of the loose ends in my studying. Today, it's RAIM and WAAS. Now, I understand that if I can confirm that if I have WAAS coverage throughout my entire route, I don't need to do any RAIM prediction as part of my flight planning. How do I determine that there is WAAS coverage along the entire route?
     
  2. Deelee

    Deelee Cleared for Takeoff

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    NOTAMs and/or FSS should be able to tell you if there are degradations. The NOTAMS will say something like UNRELIABLE or MAY NOT BE AVAIL
     
  3. John Collins

    John Collins En-Route

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    From the NOTAM order 7930.2S:

    One can always use the FAA NOTAM site to do a text search for NOTAMs using the "WAAS". Actual WAAS outages in the US are very rare events. You can also view the current WAAS coverage at https://www.nstb.tc.faa.gov/rt_verticalprotectionlevel.htm
     
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