What was found
(CAN) CREW REPORTS AT FL190 THEY WERE CRUISING ALONG AND RECEIVED AN OIL PRESSURE CAUTION THEN NOTICED THE NR 2 ENGINE OIL WENT TO DASHES, SECONDS LATER A PEC CAUTION. AS RUNNING MEMORY AND QRH ITEMS THEY RECEIVED A MOMENTARY FIRE INDICATION THAT CAME ON AND WENT OFF AND FIRED THE FWD BOTTLE. THE MESSAGE DID NOT RETURN. AN EMERGENCY LANDING WAS DECLARED, THEY DID NOT BRACE, LANDED WITHOUT INCIDENT. THE FIRE TRUCKS DID ROLL, INSPECTED WITH NO FIRE AND THE ACFT WAS TOWED TO THE GATE. MAINTENANCE AND THE CREW HAVE DONE A GVI AND SEE NO LEAKS OR OBVIOUS DEFECTS FROM THE GROUND BUT MAINTENANCE WILL INSPECT FURTHER. LOOKING AT THE FAST DATA WE HAD A CODE 938, TASK 73-20-00-810-882 TURBO MACHINERY CHIP DETECTOR.