In the event of compass errors, which correction method can be applied during flight?

The most appropriate correction method for compass errors during flight is Magnetic Deviation Adjustment. This process involves recognizing and compensating for errors that are introduced by the magnetic variations caused by the aircraft's own equipment and structure.

Magnetic deviation occurs when the magnetic compass is influenced by nearby magnetic fields generated by electronic devices or metal components within the aircraft. Pilots address this issue by understanding the specific deviations that their compass experiences relative to magnetic and true headings, often using a deviation card that represents the correction needed. Flying with a properly adjusted compass allows for more accurate navigation and flight operations, reducing the chances of course errors.

While referencing True Heading, Magnetic Variation Adjustment, and using radio navigation aids may assist in navigation, they do not address the specific errors caused by magnetic deviation in real-time flight conditions. True Heading provides a reference for navigation but does not correct the compass itself. Magnetic Variation Adjustment corrects for differences between magnetic north and true north, and relying on radio navigation aids does not solve fundamental compass errors specific to the aircraft. Thus, while those are useful navigation techniques, they do not directly correct compass errors.