What was found
THIS EO IS BEING ISSUED TO PROVIDE INSTRUCTIONS TO ACCOMPLISH THE PERMANENT REPAIR OF CORROSION DAMAGE TO THE CROSSBEAM FRAME 14 UPPER FLANGE IAW FIGURES 1, 2 & 3 FOR DAMAGE DIMENSIONS & LOCATIONS. REQUESTED & RECEIVED RELIEF IN THE FORM OF ETD2015-170-029053 FOR THE ACCOMPLISHMENT OF THE BLEND OUTS & CROSSBEAM FRAME 14 ANGLE REPAIR APPROVAL. BECAUSE THE FLOOR CROSSBEAM FRAME 14 IS A PSE, ACCOMPLISHMENT OF THIS EO HAS BEEN CLASSIFIED AS A MAJOR REPAIR. FOLLOW UP INSPECTIONS WILL BE ACCOMPLISHED ON EO E175-53MR-171.1 IAW ANAC DER FORM ATTACHED. INTERNAL DET INTERVAL OF 9,000 FC. THERE IS NO SPECIFIC TASK IN MPG & MRBR REVISION 10 THAT COVERS THIS REQUIREMENT. ACCOMPLISHMENT OF THIS MAJOR REPAIR IN ON EO E175-53MR-171 UNDER WO 1894583.