What was found
COMPRESSOR ASSY REMOVED FROM A/C FOR A 1000 TSO SCHED HOT SECTION INSP. DURING INSP, EVIDENCE RUBBING BETWEEN OUTER SHROUD OF 1ST STAGE N1 BLADES & 1ST STATE OUTER AIRSEAL KNIFE EDGES. 1 BLADE BROKEN OUTER SHROUD. CONTACT BETWEEN DAMAGED TO OUTER SHROUD OF BLADES & KNIFE EDGES WORE DOWN SHROUD OF AIRSEAL IN 2 AREAS 180 DEGREES APART. RESEARCH INDICATED 1ST STAGE OUTER AIRSEAL INSTALLED IN NEW CONDITON. 1ST STAGE BLADE SET INCLUDED 46 BLADES, & 46 BLADES OVERHAULED. RADIAL CLEARANCE MEASURE BETWEEN AIRSEAL & 1ST STAGE BLADES DURING BUILD-UP OF COMPRESSOR .028 INCH. TURBINE CASE & AIRSEAL MEASURED IN THEIR CURRENT CONDITION FOR ROUNDNESS. FORWARD SNAP OF TURBINE CASE IS .016 INCH OUT OF ROUND & AFT SNAP I