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INFORMATION BULLETIN New York Air Route Traffic Control Center La Guardia Field PREFERENTIAL ROUTINGS Effective March 15, 1955, the New York ARTC Center Information Bulletin "Instrument Flight Rules Preferential Routes", dated November 17, 1953, is cancelled and replaced by this Bulletin which outlines the Primary Routes To and From the major metropolitan airports in the New York Center Area. All operators and pilots are requested to file IFR flight plans in conformance with the Preferential Routings listed herein.The Preferential Routes are to be used for all aircraft operating on IFR flight plans regardless of weather conditions, except that clearance via other flight plan routes will be issued if the operator or pilot determines that such deviation is necessary because of any of the following conditions existing along the standard route: 1. Weather conditions adverse to flight such as icing, turbulence, thunderstorms, strong headwind components, etc. 2. Inoperative radio navigation aids. 3. Atmospheric or precipitation disruption of communications, or of reliable reception of radio navigation aid transmission. Cooperation of Operators and Pilots is solicited with respect to advising the Center of the reasons why deviation from preferential routes is considered necessary. If this information has not been made available to the Center nor supplied in the flight plan, the Center will clear aircraft via the routes outlined in this bulletin. Preferential routes are not intended to countermand authorization to operate high altitude direct route off-airways flights. However, preferential routes will be used when such aircraft are in climb-to or descent-from altitudes authorized for direct off-airways routes, where direct routing would be contrary to existing one-way airway altitude blocks, and when deemed necessary due to an existing traffic situation. /s/ Norman C. Beuter Norman C. Beuter Chief Controller New York ARTC Center
