Aircraft Compass Swing
Is it required to do a compass swing when both engines of an aircraft have been changed at same time?
ANSWER: I cant see any reason why you would need to do a compass swing after a dual engine change.
Click on the following link to download a page from Advisory Circular AC 43.13-1B. It gives you information on when you should perform a compass swing.
AC 43.13-1B, Section 3, Ground Operational Checks
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