What was found
A TECH REPORTED THAT DURING THE DRY FITTING OF PARTS (PRECHECK FOR BINDING) FOR A AIRSTAIR DOOR STRUT THAT A NEW SHAFT WOULD NOT MOVE FREELY WITHIN THE TUBE. AFTER TROUBLESHOOTING, IT WAS NOTED THAT ONE AREA OF THE SHAFT WAS SLIGHTLY LARGER. A NEW SHAFT WAS INSTALLED AND AGAIN THE PARTS WERE DRY FITTED AND THE PROBLEM WENT AWAY. NO FURTHER PROBLEMS WITH OTHER PISTON SHAFTS IN STOCK WERE FOUND. THE ONE PISTON SHAFT WAS REMOVED FROM SERVICE.