As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON TAKEOFF FROM ROC, THE NR 1 ENGINE OIL PRESSURE DROPPED 25 PSI. THE CREW SECURED THE ENGINE IAW PROCEDURES AND RETURNED TO FIELD. MAINTENANCE INSPECTED THE NR 1 ENGINE IAW PWC MM 05-50. NO DEBRIS OR DEFECTS NOTED. SERVICED THE ENGINE WITH 3 QUARTS OF OIL, GROUND CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE. (M)