What was found
PILOT REPORT: ONE MINUTE AFTER TAKEOFF, LT ENGINE COMPRESSOR STALL WAS PRESENTED AND A STRONG SHAKE ON THE AIRPLANE WAS FELT. LT THROTTLE LEVER WAS REDUCED UNTIL COMPRESSOR STALL STOPPED. ENGINE COMPRESSOR STALL CHECK LIST WAS PERFORMED A NORMAL LANDING WAS PERFORMED. CORRECTIVE ACTIONS: THE C1.5--C7TH--C6TH COMPRESSOR BLADES STAGE, BORESCOPE INSPECTION WAS PERFORMED NO DISCREPANCIES WERE FOUND. THE C1 WAS CHECKED WITH 2 BLADES OUT OF LIMITS IAW AMM-72-33-02/P 401 THE C1 WAS REPLACED P4151631-X1: THE INLET CASE MUST BE CHANGED IN LT ENGINE, IAW AMM 72-23-02 P/401 THE INLET CASE WAS REPLACED. IN LT ENGINE; P4151631-X2 : THE NOSE COWL REQUIRED CHANGE IN LT ENGINE : IAW AMM 71-10-01 P/201 THE NOSE COWL WAS REPLAC