What was found
UPON RETRACTING THE LANDING GEAR THE “GEAR UNLOCKED” LIGHT ILLUMINATED. AT 500 FEET FLAPS SELECTED UP AND THE “STAB MIS-COMPARE” AND HYD PRESS” WARNING LIGHTS ILLUMINATED. WHILE PERFORMING CHECKLIST PROCEDURE THE GEAR UNLOCK, HYD PRESS AND STAB MIS-COMPARE LIGHTS EXTINGUISHED. EMERGENCY WAS DECLARED AND DIVERTED BACK TO KMSP. LANDING WAS UNEVENTFUL. MAINTENANCE WAS ABLE TO DUPLICATE THE DISCREPANCY ON THE GROUND. MAINTENANCE FOUND THE NLG UP-LOCK FREE FALL CABLE OUT OF ADJUSTMENT. FREE FALL CABLE WAS RIGGED. GEAR SWINGS PERFORMED WITH NOT DEFECTS NOTED. AIRCRAFT WAS RETURNED TO SERVICE.