What was found
WHILE CLIMBING THROUGH FL180, PILOTS NOTICED A CONTINUAL DECLINE IN OIL PRESSURE ON THE LT ENGINE. PROCEDURE REQUIRED SHUTDOWN AND SECURING LT ENGINE IN FLIGHT. AT THAT TIME THE AIRCRAFT WAS 20 MIN FROM INTENDED DESTINATION. PILOTS MADE A NORMAL DESCENT TO 40N AND LANDED WITH ONE ENGINE, WITHOUT INCIDENT. EXCHANGED PRESSURE TRANSDUCERS FROM SIDE TO SIDE, TEST RAN, COULD NOT DUPLICATE PROBLEM. REPLACED SUSPECT TRANSDUCER, MOC-OK.