What was found
DIVERTED DUE TO RT ENGINE OIL QTY AND PRESSURE IND. RT ENGINE SHUTDOWN. IN CRUISE LOSS OIL QTY & PRESSURE. CREW SHUTDOWN ENGINE. UPON LANDING FOUND EXHAUST OIL WETTED. ENGINE REMOVED. UPON DISASSEMBLY OF ENGINE FOUND NR 5 BEARING BAY HEAVILY COKED & NR 5 SCAVENGE LINE BLOCKED WITH COKE. UPON SEPARATION OF LPT FROM EXHAUST CASE FOUND NR 5 BEARING CARBON SEAL ASSEMBLIES CARBON ELEMENT SPINNING FREE WITH AXIAL PLAY BETWEEN FRONT & REAR SEAL PLATE ASSY. AXIAL PLAY DEMONSTRATES A INSUFFICIENT TORQUE OF THE SEAL PLATES IN THE ASSEMBLY. ROOT CAUSE OF THE OIL LOSS IS MISASSEMBLED NR 5 CARBON SEAL ASSY.