What was found
(CAN) AIRCRAFT, BLADE RECEIVED FOR MAJOR INSP. DURING INSP OF THE BLADE SHANK IAW CMM, WAS FOUND WITH CORROSION PITTING AND ETCHING OF THE ALUMINIUM SURFACE. DURING INSP OF THE TAPERBORE IAW CMM, CORROSION PITTING WAS FOUND. ZONE 5 IS NOT ALLOWED ANY CORROSION DAMAGE, THERE IS PITTING VISIBLE. THE BLADE MUST BE REMOVED FROM SERVICE IAW CMM, NO CORROSION PITTING ALLOWED, THE BLADE IS MARKED TO SHOW THAT IS IN COMPLIANCE WITH FAA AD 96-08-02. CORROSION IN THE TAPER BORE WAS PREVIOUSLY ADDRESSED BY CURRENT FAA AD 96-08-02.