What was found
(CAN) AIRCRAFT WAS ON DECENT. WHEN GEAR DOWN WAS SELECTED DOWN GRINDING NOISES WERE HEARD IN THE CABIN AND THE NOSE DOWN AND LOCKED LIGHT WAS NOT ILLUMINATED. EMERGENCY PROCEDURES WERE USED TO GET THE NOSE DOWN LOCKED LIGHT AND THE A/C WAS LANDED WITHOUT FURTHER INCIDENT. HYDRAULIC FLUID WSA NOTICED LEAKING IN THE POWER PACK AREA. THE A/C WAS FERRIED. ON CHANGING THE POWER PACK A CRACK WAS DISCOVERED ON THE PUMP BODY ON THE OPPOSITE END FROM THE MOTOR.