What was found
C3 CHECK - DELAMINATION ON LEFT FORWARD VERTICAL STABILIZER PANEL BETWEEN FSS 120-129 & FSS 155-175 APPROX 7 INCHES FROM LEADING EDGE OF PANEL. PANEL REMOVED SENT TO OUTSIDE VENDOR FOR REPAIR & REINSTALLED IAW B757 SRM 51-40-02-0G PAR 4 & 7 FIG 3, 6, 7, 8 & 12.