As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT ENGINE LOW OIL PRESSURE MASTER CAUTION ON CLIMBOUT. (ACFT RETURNED TO DEPARTURE AFTER T/O -- EMERGENCY DECLARED) PERFORMED OIL CONSUMPTION CHECK, RUN ACFT AT 85 PERCENT N1 FOR 30 MINUTES WITH NO OIL PRESSURE INDICATIONS IAW AMM 71-00-00-710-810. NO FURTHER DEFECTS NOTED AT THIS TIME. ACFT OK FOR SERVICE.