What was found
FLT 625 - MCO - RT ENG SHUT DOWN DUE TO OIL QTY DEPLETION. OIL TEMP REMAINED NORMAL. OIL PRESS STARTED TO FLUCTUATE. OIL LEAKED DOWN TO 6 QTS SLOWLY THEN DEPLETED RAPIDLY. O/W LANDING 102,000 LBS. RT ENG OIL PRESS DIFF SWITCH IS BROKEN. INSPECT OIL SYS FOR FOREIGN MATTER. INSPECTED ENG FOR SIGNS OF LEAKAGE. REMOVED AND REPLACED NR 2 ENG OIL PUMP IAW MM CHAPTER 79-30. PERFORM ENG RUN AND LEAK CHECK, PERFORMANCE GOOD IAW MM CHAPTER 79-30. PERFORMED DETAILED INSPECTION IN REF TO O/W LANDING IAW DC-9 MM 5-51-0 PAGE 601-607. NO DEFECTS NOTED. REMOVED AND REPLACED OIL PRESS DIFF SWITCH AND PERFORMED ENG RUN. SYS CHECKS GOOD IAW MM 79-30. LEAK CHECK GOOD. (M)