What was found
RT ENGINE EXPERIENCED LP VIBE TO 9.9. CREW RETURNED TO FIELD AND ENGINE LOCKED UP AFTER SHUTDOWN WITNESSED BY MX STANDING BY. REMOVED AND REPLACED RIGHT ENGINE ASSEMBLY, IN REF TO THE AMM. OPERATIONS AND LEAK CHECK GOOD. COMPLIED WITH TASK CARD ENGINE INSTALLATION (RII). DYNAMOMETER S/N D34420 DUE JUN-21. DIGITAL PROTRACTOR S/N MKE-062A DUE OCT-20/5 TO 75 FT/LB TORQUE WRENCH. S/N 1098400352 DUE OCT-20/50 TO 250 FT/LB TORQUE WRENCH. S/N 0906399257 DUE JUN-21.