What was found
(CAN) THE PILOT NOTED AN INCREASE IN VIBRATION. POST LANDING INSPECTION REVEALED A NR OF MID-SPAN STATION ALONG THE T/E OF BLADE WERE VOIDED AND THE SKIN SEPARATED FROM T/E EXTRUSION. AFTER THE ACFT SAT STATIC OVERNIGHT THE MECHANIC NOTED ADDITIONAL VOIDING AND SEPARATION OCCURRED OF THE OTBD 3 OF T/E OF SAME BLADE. UPON INSPECTION OF THE OPPOSING BLADE, IT WAS OBSERVED 1 BS WAS ALSO VOIDED AND SEPARATED.