As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 3 ENGINE OIL QUANTITY DROPPED TO 1 QUART, OIL PRESSURE FLUCTUATED BUT DID NOT DROP BELOW 35 PSI. AIRCRAFT LANDED WITHOUT INCIDENT. FOUND DAMAGED (PINCHED) O-RING AT NR 3 ENGINE OIL PRESSURE FILTER BOWL CAP. REMOVED AND REPLACED O-RING IAW MM 72-01-00. RESERVICED ENGINE TO PROPER OIL LEVEL. ENGINE RUN UP CHECK AND LEAK CHECK COMPLIED WITH. NO LEAK NOTED, A/C RETURNED TO SERVICE. (M)