What was found
DURING CLIMBOUT AT APPROXIMATELY 12,000 FT, THE RT ENGINE OIL PRESSURE WENT TO ZERO. IT WAS IMMEDIATELY FOLLOWED BY A RED MASTER WARNING LIGHT AND A LOW OIL PRESSURE LIGHT. AFTER COMPLETING THE EMERGENCY CHECKLIST, THE GAUGE RETURNED TO NORMAL WITH A REDUCED THRUST SETTING. ON POST FLIGHT, RT ENGINE OIL QUANTITY WAS BELOW MINIMUM AND THERE IS A TRACE OF OIL ON THE LOWER AFT SECTION OF THE COWLING. AS PER RECOMMENDATION OF PWC: REMOVED RT ENGINE AND INSTALLED AN INSPECTED SERVICEABLE RT ENGINE. PERFORMED LEAK AND OPERATIONAL CHECKS WITH NO DEFECTS NOTED. ALL WORK PERFORMED IAW AMM 71-00-00 AND EMM 72-00-00.