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.

Frank Bowlin

Wednesday, November 26, 2014 at 12:00 AM ET

Verified

Key Takeaways:

Under Part 91, flying GPS approaches strictly requires a current database as mandated by Flight Manual Supplements and the AIM; failure to comply risks violations of FAR 91.9 and 91.13.
Using obsolete GPS data for en route or terminal navigation requires pilot verification against current approved data, but using it for advisory displays or in lieu of DME/ADF is generally considered legal for Part 91 operations if the underlying information is verified.

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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.