As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THIS EO IS BEING ISSUED TO PROVIDE INSTRUCTIONS TO ACCOMPLISH A PERMANENT REPAIR OF CORROSION DAMAGE TO THE CENTER FUSELAGE III LH IB SEAT TRACK P/N 170-86081-005. ACCOMPLISHMENT OF THIS TRACK SPLICE REPAIR WILL BE PER ETD2019-170-161136B AND SRM 1583 PART II 53-00-10/REPAIR 01P. ACCOMPLISHMENT OF THIS EO HAS BEEN CLASSIFIED AS A MAJOR REPAIR BECAUSE THE SEAT TRACK IS A PSE AND THIS EO IS RESTORING STRENGTH. EO E175-53MR-475 IS BEING ACCOMPLISHED UNDER WO 2807345.