Whats Legal When Obsolete?
There are two aspects to the legality of obsolete data: navigation and information. The legality of using obsolete data for navigation can be found in your Flight Manual Supplement. The Limitations section of the Garmin 530W Flight Manual Supplement simply states IFR en route and terminal navigation is prohibited unless the pilot verifies the currency of the database or verifies each selected waypoint for accuracy by reference to current approved data.