What was found
DURING INSPECTION OF AIRCRAFT, FOUND SIGHT TUBE ON HYDRAULIC RESERVOIR TO BE LEAKING, REPLACED WITH NEW. AFTER A FEW DAYS THE AIRCRAFT WAS STILL IN INSPECTION AND SAW THAT IT WAS CRACKED AGAIN SO WE INSTALLED AND OTHER SIGHT TUBE. ON THE LAST DAY OF INSPECTION SAW IT WAS CRACKED AGAIN SO INSTALLED ANOTHER NEW SIGHT TUBE ABOUT 4 DAYS LATER AFTER THE AIRCRAFT WAS IN SERVICE. FOUND THAT THE SIGHT TUBE WAS LEAKING AGAIN, REPLACED WITH NEW AGAIN.