What was found
CREW DETERMINED THAT THE PRIMARY TRIM CONTROL WAS INTERMITTENTLY INOPERATIVE IN BOTH NOSE UP AND NOSE DOWN DIRECTIONS. THIS WAS TRUE FROM BOTH THE CAPTAINS AND FIRST OFFICERS POSITION. THE ALTERNATE TRIM FUNCTIONED OK. NO MENTION OF COM COMPLIANCE EXCEPT FOR THE NOTE THAT THE CREW DID NOT TROUBLESHOOT THE SUITCASE HANDLES. THE FLIGHT RETURNED TO A NORMAL SAFE LANDING BACK AT MSP. MX COULD NOT FIND ANY PROBLEMS OR FAILURES BUT DID CHANGE THE PRIMARY DRIVE MOTOR (SECOND ONE IN 2 DAYS) AND ALSO REPLACED THE BRAKE OVERRIDE SWITCH.