PPRuNe Forums - View Single Post - North Atlantic Tracks & Gross Navigational Errors

9th Sep 2009, 21:22

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G-OFUK

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A GNE is defined as one of the following (at least in Shanwick airspace):

An observation which differs from a report by 25nm or more laterally,
An observation which differs from an estimate passed by Shawick by 25nm or more laterally or
A report which differs from an estimate by 25nm or more laterally.

Responsibility for monitoring GNEs in NAT airspace is delegated to the North Atlantic Central Monitoring Agency (NAT CMA), you can read a bit about them here:
CMA

Hope that helps.

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