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Flight Standards Service

Draft Advisory Circulars (ACs) Open for Comment

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Document Title: AC 90-48E, Pilots’ Role in Collision Avoidance
Summary: This AC alerts pilots to the risk of midair collisions or near midair collisions (NMAC), presents human causal factors, and provides pilot procedures and aircraft technology that can mitigate the risk of both a ground collision or in-flight NMAC/collision. The content of the AC is to support a pilot’s action of see-and-avoid, which is a pilot’s basic mitigation to avoid causing or being involved in an aircraft collision. This AC is not mandatory and does not constitute a regulation. This AC describes an acceptable means, but not the only means, to avoid in flight NMAC/collisions. However, if you use the means described in the AC, you must follow it in all important respects. The contents of this document do not have the force and effect of law and are not meant to bind the public in any way. This document is intended only to provide clarity to the public regarding existing requirements under the law or agency policies.
References: Title 14 of the Code of Federal Regulations (14 CFR):
  • Part 91, General Operating and Flight Rules
Documents for Download: Draft Document (PDF)
Draft Document Comment Grid (MS Word)
Comments Due: July 17, 2020
How to Comment: Deliver comments by mail or hand to:

Federal Aviation Administration
Julia Lutz
600 Maryland Ave SW
Suite 610E
Washington, DC 20024

Email comments to:
Email Comments

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