What was found
(CAN) BLADE RECEIVED FOR REPAIR OF FIBERGLASS DAMAGE ON THE OUTER SURFACE. DURING INITIAL INSPECTION, THE PLUG FOR THE BLADE TAPER BORE WAS REMOVED, FOUND THAT THE TAPER BORE WAS PRESSURIZED AS THE PLUG POPPED OUT WHEN RETAINING RING WAS REMOVED. FOUND CORROSION BY PRODUCTS, AND CORROSION DAMAGE INSIDE OF THE TAPER BORE. PER CMM 61-13-02, REPAIR 5-5, ZONE 4 IS ALLOWED 0.014 INCHES OF CORROSION DAMAGE DEPTH, THAT MUST BE REMOVED, THIS DEPTH WAS NOT MEASURED, BUT APPEARS TO EXCEED THE MAXIMUM DEPTH.