What was found
DURING DISASSEMBLY OF ENGINE TURBINE SECTION FOR AN OVERTEMP INSPECTION/MPI, THIRD LPT ROTOR DISK, PN 3074096-2, SN 965332200320, WAS FOUND TO HAVE BEEN RUB DAMAGED AT THE FORWARD SIDE OF THE DISK IN FIR TREE AREAS. CONDITION APPEARS TO HAVE BEEN CAUSED BY DISK CONTACT WITH THIRD LPT STATOR ASSY, PN 3072342-4. THIRD LPT DISK, PN 3074096-2, WAS SCRAPED BY DAMAGE CAUSED PER APPLICABLE ENGINE MM NR 72-02-15 REV 12/98. ALLIED SIGNAL ENGINEERING RECOMMENDED THIRD LPT STATOR, PN 3072342-4, BE REPLACED DUE TO SUSPECT VANE SHIFT OR FLEX.