What was found
THE TAIL ROTOR SPIDER BECAME STIFF AFTER BEING INSTALLED AT OVERHAUL. THIS WAS 19 HOURS AFTER OVERHAUL, OVER 80 POUNDS IN FORCE WERE REQUIRED TO SLIDE SPIDER MAXIMUM OF 30 PER MM. THE SPIDER WAS REPLACED WITH ANOTHER OVERHAULED SPIDER. IT IS NOW STIFF AND REQUIRES 95 POUNDS OF FORCE. EUROCOPTER STATES OVERHAUL PROCEDURE CHANGED RECENTLY. THIS PROBLEM WOULD BE IMPOSSIBLE TO DETECT IN-FLIGHT WITH HYDRAULIC POWER ON. TAIL ROTOR CONTROL WOULD BE VERY DIFFICULT WITH HYDRAULIC FAILURE. SUBMITTER STATED WILL CONTINUE 25-HOUR INSPECTION OF FORCE IN THIS AIRCRAFT.