What was found
(CAN) REMOVED ENGINE FROM A/C AFTER DAMAGE FOUND ON HP TURBINE BLADES AT BORESCOPE INSP. ENGINE REMOVED FOR INVESTIGATION & OVERHUAL.WHEN LOW TURBINE SUPPORT ASSY & COMBUSTION LIN ER WERE REMVD, APPROX ONE HALF OF DEFLECTOR SEGMENTS FELL TO BOTTOM OF GAS GEN CASE. DEFLECTOR SUPPORT RING MISSING APPROX 1/4 OF ITS CIRCUMFERENTIAL AREA & LARGE NO OF RETAINING RIVETS WERE MISSING.THE ENDS OF FISHTAILS OF GAS GEN CASE WERE ALL HEAVILY DAMAGED WITH EXTENSIVE FRETTING, CRACKING & MISSING MATERIAL.THE LOW TURBINE SUPPORT ASSY HAD MINOR WEAR MARKS AT LOCATION OF BROKEN DEFLECTOR SEGMENTS. NO DAMAGE UP STREAM OF THE DIFFUSER TUBES IN GAS GEN CASE