What was found
ENGINE WAS RETURNED TO OUR REPAIR STATION FOR UNSCHEDULED REPAIR. DURING AN AIRCRAFT PRE-BUY INSPECTION BEING PERFORMED BY AN AIRCRAFT SERVICE CENTER, EVIDENCE OF FOD DAMAGE WAS FOUND IN THE COMPRESSOR SECTION OF THE ENGINE. NOTE: AIRCRAFT SELLER DID NOT REPORT ANY OPERATIONAL ANOMALIES WITH ENGINE SERIAL NUMBER 1915. THE SERVICE CENTER PROVIDED PHOTOGRAPHS TO, AND CONTACTED, W.I. OEM PRODUCT SUPPORT FOR DISPOSITION. BASED ON THE DAMAGE EXHIBITED IN THE PHOTOS PROVIDED BY THE SERVICE CENTER, W.I. OEM PRODUCT SUPPORT DIRECTED REMOVAL OF THE ENGINE FOR RETURN TO OUR REPAIR STATION FOR REPAIR. AFTER INDUCTION INTO OUR REPAIR STATION, SUBSEQUENT DISASSEMBLY REVEALED ONE MISSING INTERMEDIATE PRESSURE COMPRESSOR (IPC) ROTOR BLADE. THE DOWNSTREAM HIGH PRESSURE COMPRESSOR ROTOR EXHIBITED SECONDARY DAMAGE, INDICATING SOME PORTION OF THE LIBERATED IPC ROTOR BLADE ENTERED THE ENGINE CORE. STATIC COMPONENTS, INCLUDING THE FAN STATOR VANES AND IPC STATOR VANES ALSO EXHIBITED SECONDARY DAMAGE FROM THE IPC BLADE LIBERATION.