What was found
(CAN) APPOX 20 MINS INTO FLT, & AT FLT LEVEL 120 ENROUTE TO DIKO FROM DIBK WITH 19 PAX, MASTER CAUTION LIGHT ILLUMINATED ACCOMPANIED WITH NR 2 ENG LOW OIL PRESSURE LIGHT. NR 2 OIL PRESSURE GAUGE CONFIRMED ACTIVE WARNING LIGHT WITH PRESSURE INDICATION OF BELOW 75 PSI & DECREASING. ENG SHUTDOWN CARRIED OUT IAW QRH CHKLST. ENG SECURED & FLT DIVERTED TO ABIDJAN. UNITED NATIONS FLT FOLLOWING CENTRE 'AMIGO BASE' INFORMED ON HF FREQUENCY OF SIT & ASKED TO INFORM ALL FORCE NOUVELLE MILITARY GROUND TO AIR SECURITY SURVEILLANCE & DEFENSE SITES INCLUDING FRENCH AIR FORCE OF OUR NEW ROUTING & ALTITUDE & CANCEL OF PREVIOUSLY SCHEDULED AIR TASKING ORDERS. FLT TERMINATED WITHOUT ANY FURTHER INCIDENTS BACK IN ABIDJAN.