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. Author manuscript; available in PMC: 2016 Jun 1.
Published in final edited form as: Aviat Space Environ Med. 2014 Feb;85(2):160–166. doi: 10.3357/asem.3814.2014

TABLE III. SUMMARY OF MAJOR FEATURES OF 14 CFR PART 136 SUBPART A—NATIONAL AIR TOUR SAFETY STANDARDS.

Features Affecting Part 91 Operators
  • Requires each Part 91 operator conducting nonstop commercial sightseeing flights within a 25-statute-mile radius of an airport to obtain an FAA letter of authorization (LOA). The LOA application requires operators to show proof of registration in an FAA-approved Antidrug and Alcohol Misuse Prevention Program.

  • Allows charitable, nonprofit, and community event flights to continue operating under Part 91 without having to comply with FAA drug and alcohol testing requirements.

  • Raises the minimum number of hours required for private pilots conducting charity, nonprofit, and community event fundraising flights from 200 to 500.

  • Requires charity sponsors to notify and provide to their local Flight Standards District Office the details of the charity event, including a photocopy of each pilot-in-command’s pilot certifi cate, medical certificate, logbook entries that show the pilot is current, and a signed statement from each pilot that lists all prior events in which the pilot has participated.

  • Limits community event sponsors and their pilots to one event per calendar year. An “event” may not last more than 3 consecutive days, but may involve several flights.

  • Limits pilots to 12 d of flying in charity events or 3 d of flying in community events per calendar year.

Features Affecting Part 91 and Part 135 Operators
  • Requires all sightseeing operators to comply with new passenger briefing and life preserver (for over water flights) requirements.

  • Requires helicopter operators to be equipped with fixed floats or an inflatable flotation system if the over-water flight is conducted beyond power-off gliding distance to the shoreline.

  • Requires helicopter operators to complete a performance plan before each flight that considers the effects of density altitude, weight, and center of gravity limits on takeoff, landing, and hovering in ground effect.