What was found
DURING C6 CHECK AT (SAL), CORROSION WAS FOUND ON STRINGER 38L BTWN FR 53-64 AND STRINGER 37L BTWN FR 60-64 AT THE AFT FUSELAGE. SEE THE REF /1/ EA FOR MORE DETAILS. EVALUATED THE DAMAGE AGAINST SRM 53-41-13 AND THERE IS NO ALLOWABLE NOR APPLICABLE REPAIR FOR THIS TYPE OF DAMAGE. IN ADDITION, THE REF /4/ SRM REPAIR WAS REVIEWED BUT FOUND NOT APPLICABLE DUE TO THE MATERIAL OF THE STRINGER. REPORTED THE DAMAGE FOR REPAIR DISPOSITION. PROVIDED REF/2/ RDAS WITH PERMANENT REPAIR INSTRUCTIONS CONTAINED IN REF /3/ TD WHICH CONSISTS OF PERFORMING DVI, HFEC & ROTO TEST INSPECTION, SPLICE REPAIR, INSTALL REPAIR FASTENERS, AND RESTORE SURFACE FINISH PER SRM. THIS EC A18-880-01 ACCOMPLISHES THE PERMANENT REPAIR PER THE REF /1/ EA AND COMPLIES WITH REF /2/ RDAS WITHOUT DEVIATION; THIS PERMANENT, CATEGORY A REPAIR HAS BEEN APPROVED VIA REF /2/ RDAS AND IS CLASSIFIED AS MAJOR.