What was found
DURING B-6 BASIC CHECK AT EAMS, CORROSION DAMAGE WAS DISCOVERED ON THE RT IB SEAT TRACK (P/N 170-03263-001) AT FR15, FR16 AND FR17 IN THE FORWARD CABIN FLOOR STRUCTURE. THE DAMAGE WILL BE REPAIRED BY A CUTOUT AND DOUBLER REPAIR IN ACCORDANCE WITH SRM PART II 53-10-10/REPAIR 01P. THE RT SEAT TRACK BEAM IS NOT CLASSIFIED AS FATIGUE CRITICAL STRUCTURE (FCS), BUT IT IS CLASSIFIED AS PRIMARY STRUCTURE. CLASSIFIES THIS AS A MAJOR REPAIR DUE TO STRENGTH RESTORATION OF PRIMARY STRUCTURE. SUPPLEMENTAL FOLLOW UP INSPECTIONS ARE NOT REQUIRED.