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United States Department of Transportation United States Department of Transportation

AC 90-45A - Approval of Area Navigation Systems for use in the U.S. National Airspace System (Cancelled)

Document Information

Number
90-45A
Title
Approval of Area Navigation Systems for use in the U.S. National Airspace System
Date cancelled
2014-08-27
Cancellation notes
Cancellation Memo Attached
Date issued
1975-02-21
Office of Primary Responsibility
AFS-400
Description

Provides guidelines for implementation of two-dimensional area navigation (2D RNAV) within the U.S. National Airspace System (NAS). Provides for both VOR/DME dependent systems and self-contained systems such as Inertial Navigation Systems (INS).

AC 20-138C - Airworthiness Approval of Positioning and Navigation Systems supersedes the airworthiness considerations in AC 90-45A, Approval of Area Navigation Systems for use in the U.S. National Airspace System. Equipment previously approved per the airworthiness guidance in AC 90-45A is still valid for the operations and conditions stated in their approvals.

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