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Flight Standards

Draft Advisory Circulars (ACs) Open for Comment

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Document Title: AC 90-101B, Approval Guidance for RNP Procedures With AR
Summary: This AC provides aircraft eligibility and operational use guidance for aircraft operators conducting Title 14 of the Code of Federal Regulations (14 CFR) part 97 Area Navigation (RNAV) Required Navigation Performance (RNP) instrument procedures with Authorization Required (RNP AR).
References: Title 14 of the Code of Federal Regulations (14 CFR) Part 91, General Operating and Flight Rules
  • Part 91, General Operating and Flight Rules
  • Part 97, Standard Instrument Procedures
  • Part 121, Operating Requirements: Domestic, Flag, and Supplemental Operations
  • Part 125, Certification and Operations: Airplanes Having a Seating Capacity of 20 or More Passengers or a Maximum Payload Capacity of 6,000 Pounds or More; and Rules Governing Persons on Board Such Aircraft
  • Part 129, Operations: Foreign Air Carriers and Foreign Operators of U.S.-Registered Aircraft Engaged in Common Carriage
  • Part 135, Operating Requirements: Commuter and On Demand Operations and Rules Governing Persons On Board Such Aircraft
AC 20-138, Airworthiness Approval of Positioning and Navigation Systems
Document for Download: Draft Document (PDF)
Draft Document Comment Grid (MS Word)
Comments Due: December 5, 2019
How to Comment: Deliver comments by mail or hand to:

Federal Aviation Administration
Sarah Sansolo
600 Maryland Ave SW
Suite 610E
Washington, DC 20024

Email comments to:
Email Comments

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