As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT FL 330, RAT -15, NR 3 ENGINE OIL PRESSURE LIGHT ILLUMINATED WITH 51 PSI AND OIL TEMP. OF 110 DEG. DURING IDLE, TEMP WAS 115 DEGREES, RPESSURE OF 48 PSI. OIL PRESSURE LIGHT FLICKERED AT IDLE. PERFORMED ENGINE SECURING PROCEDURE. NR 3 ENGINE N2 40 PERCENT AND OIL PRESSURE OF 30 PSI WITH ENGINE SECURED. REPLACED NR 3 ENGINE OIL STRAINER. INSPECTED FOR METAL, NONE FOUND. REPLACED LOW OIL PRESSURE SWITCH AND OIL PRESSURE DIFFERENTIAL SWITCH. RUN UP AND LEAK CHECKED GOOD IAW DC-8 MM 79-20-04-2.