What was found
THIS EO IS BEING ISSUED TO PROVIDE INSTRUCTIONS TO ACCOMPLISH THE PERMANENT REPAIR OF CORROSION DAMAGE TO THE AFT CABIN FLOOR STRUCTURE LT AFT SEAT TRACK PN 170-86081-003 AT FR 84 & Y=-260.4. THE APPROX DAMAGE DIMENSIONS ARE 2.0 INCHES X .90 INCH TO A MAX DEPTH OF 100% MATERIAL LOSS & 2.00 INCHES X .50 INCH TO A MAX DEPTH OF .090 INCH DEEP. ACCOMPLISHMENT OF THIS PERMANENT TRACK SPLICE REPAIR WILL BE IAW ETD2016-170-031349 & SRM PART II 53-00-10 FIG 205. ACCOMPLISHMENT OF THIS EO HAS BEEN CLASSIFIED AS A MAJOR REPAIR DUE TO STRENGTH RESTORATION & WILL REQUIRE FOLLOW UP INSPECTIONS. EO E170-53MR-032 1 WILL BE ISSUED TO ACCOMPLISH THE FOLLOW UP INSPECTIONS IAW ANAC DER. REF TASK 53-23-005-0001 INTERNAL GVI, THRESHOLD OF 20,483FC OR 27,242FH, INTERVAL OF 10,133FC OR 13,476FH IS SUFFICIENT & IS MET USING THE INSPECTION REQUIREMENTS, MPG & MRBR REVISION 11. ACCOMPLISHMENT OF THIS MAJOR REPAIR WAS ON EO E170-53MR-032 UNDER WO 2051497.