What was found
(CAN) AIRCRAFT DEPARTED. AS THE AIRCRAFT ACCELERATED THE CREW BECAME CONCERNED DUE TO A VIBRATION. THE AIRCRAFT WAS DIVERTED TO INTERNATIONAL AIRPORT. INVESTIGATION FOUND A CRACK IN THE HYDRAULIC LINE FROM THE LT ENGINE DRIVEN HYDRAULIC PUMP WHERE IT CONNECTS TO THE INPUT PORT OF THE LT PRESSURE FILTER. A NEW LINE WAS INSTALLED. THE HYDRAULIC SYSTEM WAS SERVICED AND GROUND FUNCTION TESTS WERE COMPLETED. THE AIRCRAFT WAS RELEASED TO SERVICE.