What was found
CREW REPORTED THAT THE RT ENGINE OIL PRESSURE FLUXUATED BETWEEN 40 AND 50 PSI AT CRUISE FLT OF 11,000 FT. NR 2 ENGINE WAS SHUT DOWN AND FLIGHT DIVERTED TO ACY. MAINTENANCE TROUBLESHOT AIRCRAFT AND FOUND A B-NUT FOR THE OIL PRESSURE TRANSMITTER TO BE LOOSE. B-NUT WAS TIGHTENED, AREA OF ENGINE WAS CLEANED. PERFORMED MFG LOSS OF OIL PRESSURE / LOW OIL PRESSURE INSPECTION IAW MFG MM 05-50-00. AIRCRAFT GROUND RAN AT 80 PERCENT WITH NO DEFECTS NOTED. NR 2 ENGINE OIL CAP ADJUSTED. NO LEAKS WERE NOTED. AIRCRAFT RETURNED TO SERVICE.