What was found
DURING CRUISE AT FL 340, RECEIVED A HYD BLUE SYS LOW PRESSURE ECAM. HYD PAGE OF ECAM SHOWED 2950 PSI IN THE BLUE SYSTEM, NO OTHER INDICATIONS ON OVERHEAD PANEL AND SYSTEM QUANTITY WAS NORMAL. NO OTHER INDICATION ON HYD BLUE SYSTEM, PRESSURE REMAINED CONSTANT THROUGH OUT FLIGHT AND QUANTITY NEVER WENT LOW.