As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PIT - FLT 141 - EN ROUTE PIT-SNA, AFTER DEPARTING PIT, CREW REPORTED THAT THE NR 2 ENGINE OIL QUANTITY WAS DECREASING ALONG WITH OIL PRESSURE. THE FLIGHT RETURNED TO FIELD AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE HYDRAULIC PUMP MOUNTING STUDS PULLED FROM THE GEARBOX PAD, ALLOWING A ONE INCH GAP BETWEEN PUMP AND GEARBOX. THE ENGINE WAS REPLACED TO MAKE REPAIRS TO THE GEARBOX. (M)