What was found
ABQ- FLT 343 - EN ROUTE IAH-LAS, THE NR 2 ENGINE OIL QUANTITY BEGAN DECREASING RAPIDLY. CREW ELECTED TO DIVERT AIRCRAFT TO ABQ. AIRCRAFT ARRIVED AT GATE WITHOUT FURTHER INCIDENT. MAINTENANCE NOTED LESS THAN 1 QT OIL ON QUANTITY GAUGE, AND ALSO FOUND A PUDDLE OF OIL IN EXHAUST DUCT. MAINTENANCE ELECTED TO CHANGE ENGINE. TEARDOWN OF ENGINE FOUND FOD IMPACTED THE NR 6 BEARING HEAT SHIELD CAUSING IT TO CRACK AND COME INTO CONTACT/CHAF THE NR 6 BEARING PERSSURE TUBE. (M)