What was found
INNER FUSELAGE SKIN PANEL STA 1193 BETWEEN STR-28L AND 29L, PN 146T3252-1: AN EXISTING DEEP GOUGE WAS FOUND AND WAS BLENDED OUT AS PER SRM B767-300 SRM 53-00-01 ALLOWABLE DAMAGE 1. AFTER THE BLEND AND DRILL OUT (0.250"), THE MEASURED MINIMUM FUSELAGE SKIN THICKNESS WAS 0.052", A 26% REDUCTION FROM THE NOMINAL SKIN THICKNESS OF 0.071", WHICH IS ABOVE THE ALLOWABLE DAMAGE LIMITS OF 15% SKIN THICKNESS REDUCTION AS PER B767-300 SRM 53-00-01 ALLOWABLE DAMAGE 1. UNABLE TO PERFORM PLUG FASTENER REPAIR DUE TO REDUCTION OF THICKNESS. THE BLEND OUT IS LOCATED CLOSE TO THE HYDRAULIC SYSTEM PIPE INLET AT STA 1197 -STA1197+11 STR 27L – STR 28L, WHICH MEANS THAT BLEND OUT FALLS WITHIN THE NO REPAIR ZONE BY A FUSELAGE SKIN CUTOUT AS PER B767-300 SRM 53-00-01 REPAIR RESTRICTION, FIG 202.