What was found
EN ROUTE FROM TOL, THE FLIGHT CREW NOTICED THE PITCH AND ROLL FLAGS DISPLAYED ON THE CAPTAINS AND FIRST OFFICERS ELECTRONIC ATTITUDE DIRECTION INDICATOR. THE FLIGHT CREW FOLLOWED COMPANY PROCEDURES AND RETURNED TO TOL FOR AN UNEVENTFUL LANDING. MAINTENANCE INSPECTED THE AIRCRAFT AND FOUND BOTH FOG GYROS TO BE DEFECTIVE. MAINTENANCE REMOVED AND REPLACED THE FOG GYROS IN ACCORDANCE WITH THE MAINTENANCE MANUAL AND PERFORMED SUCCESSFUL OPERATIONAL CHECKS. THE AIRCRAFT WAS RETURNED TO SERVICE.