What was found
DURING BASIC CHECK, INSPECTION FOUND THE RT COCKPIT FLOOR DOUBLER P/N 170-03238-005 HAD CORROSION DAMAGE. THE DAMAGE IS LOCATED BETWEEN FR11 AND FR12. THE DAMAGE HAS MULTIPLE LOCATIONS AND DEPTHS. REQUESTED AND RECEIVED ETD2016-170-086669 FOR THE ACCOMPLISHMENT OF THE PERMANENT REPAIR. THE REPAIR WILL BE ACCOMPLISHED BY CUTTING OUT ANY SECTIONS WITH GREATER THAN 30% MATERIAL LOSS, APPLYING A DOUBLER REPAIR TO ANY SECTIONS WITH GREATER THAN A 10% MATERIAL LOSS, AND BLENDING OUT ANY AREAS THAT ARE 10% MATERIAL LOSS OR LESS. ENGINEERING HAS CLASSIFIED THIS REPAIR AS A MAJOR REPAIR. EO E175-53MR-300.1 WILL BE ISSUED TO ACCOMPLISH FOLLOW UP INSPECTIONS: REF: TASK 53-10-027-0001 (INTERNAL GVI THRESHOLD OF 25,202FC, INTERVAL OF 25,202FC) IS SUFFICIENT AND IS MET USING THE INSPECTION REQUIREMENTS: MPG/MRBR REVISION 12. THRESHOLD IS COUNTED SINCE NEW. THIS PERMANENT REPAIR WILL BE ACCOMPLISHED ON WO 2151787