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eNASR Browser

The eNASR Browser lets you browse NASR data sets, including:

  • Current cycle
  • Next cycle
  • PreChart cycle


  • Next cycle information is a preview of the next effective AIRAC cycle. The information could be changing daily until the cutoff for that cycle, 34 days before the effective date.
  • PreChart cycle information could be changing daily. It should not be considered as definitively part of a current or future AIRAC chart cycle. It should not be used for navigation or flight planning. It will reflect changes published in the National Flight Data Digest (NFDD).

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