What was found
PRESS LINE COMING FROM STANDBY HYDRAULIC PUMP AT THE EDGE OF AN819 SLEEVE HAD CRACKED AND RUPTURED CAUSING TOTAL HYD FAILURE. THE OPPOSITE END OF TUBE HAD A SMALL CRACK AT THE SAME LOCATION, BUT HAD NOT RUPTURED. THIS WAS THE SECOND TIME A LINE HAD CRACKED AND RUPTURED. THE LAST OCCASION WAS AT THE CROSS ON PRESS LINE. LEAR JET HAS HEX LINE FOR REPLACEMENT. SUBMITTER SHOULD HAVE A BULLETIN ISSUED.