What was found
(CAN) DEPARTED AIRPORT 10/14/09 ON FLIGHT 7435 AND BEGAN TO HAVE LT ENG OIL PRESSURE FLUXUATIONS AFTER REACHING CRUSE ALTITUDE. CAPTAIN SHUTDOWN ENG IN FLIGHT AFTER OIL PRESSURE DROPPED BELOW MINIMUMS. ACFT DIVERTED. AFTER TALKING WITH MFG, OUR PRELIMINARY REPORT POINTS TO A FATIGUE CRACK ON THE EXTERNAL OIL PRESSURE FITTING. THE FITTING WILL BE SENT TO MFG FOR TESTING TO DETERMINE THE CAUSE OF THE CRACK AND THE ENGINE IS BEING SHIPPED TO REPAIR STATION TO INVESTIGATE POSSIBLE PWR SECTION DEFECTS.