What was found
FUSELAGE SKIN PANEL, STA 919.5, STR 19L- STR 20L, P/N 145T3321-4, AN EXISTING AREA OF CORROSION WAS FOUND AND WAS BLENDED OUT AS PER SRM B767-300 SRM 53-00-01 ALLOWABLE DAMAGE 1. AFTER THE BLEND OUT, THE MEASURED MINIMUM FUSELAGE SKIN THICKNESS WAS 0.178", A 20% REDUCTION FROM THE NOMINAL SKIN THICKNESS OF 0.223", WHICH IS ABOVE THE ALLOWABLE DAMAGE LIMITS OF 15% SKIN THICKNESS REDUCTION AS PER B767-300 SRM 53-00-01 ALLOWABLE DAMAGE 1. THE BLEND OUT IS LOCATED CLOSE TO THE REAR OVER-WING EMERGNCY EXIT DOOR, WHICH MEANS THAT THE BLEND OUT FALLS WITHIN THE NO REPAIR ZONE BY A FUSELAGE SKIN CUTOUT AS PER B767-300 SRM 53-00-01 REPAIR, FIG 202.