Aeronautical Information Services - National Flight Data Center (NFDC)

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28 Day NASR Subscription

PLEASE NOTE

  • NASR subscriber files are now being released every 28 days, rather than every 56 days.
  • The last 56 Day NASR subscriber files cover the period March 2, 2017 through April 27, 2017.
  • The first 28 Day NASR subscriber files cover the period March 30, 2017 through April 27, 2017.
  • Each set of subscriber files will be posted 28 days prior to the effective date. The files will contain data that is updated for that 28 day cycle and has met the cutoff for entry.
  • By FAA policy and order, many NASR resources, generally categorized as "Enroute," are still updated on a 56 day charting basis. The following files will be included in the 28 day subscriber set, but will only change every 56 days: ATS, AWY, PFR, ARB, CDR, MTR, SSD, PJA, and STARDP, and WXL.