What was found
MAJOR REPAIR LT FUSELAGE SKIN BS 657 - 661 AT STRINGER 26L HAS SCRIBE MARK DAMAGE & MUST BE INSP IAW REQUIREMENTS OF AMM53-31-93 PRIOR TO THRESHOLD OF 28,996 PTC & EVERY 2000 CYCLES THEREAFTER. ACCOMPLISH INSP IAW PART II OF ECRA 5330-04413. REPAIRED LT FUSELAGE SKIN STATION 660 - 760 AT LAP IAW ECRA 5330-04413. INSP REQUIREMENTS PERFORM INSP BS 400 - 661 SKIN LAP AT STRINGER 26LT IAW AMM 53-31-93 & DETAILED VISUAL INSP. ADDITIONAL INSP REQUIREMENTS UT PHASED ARRAY INSP IAW NDT MANUAL PART4 53 -00-02 & HFEC INSP NDT MANUAL PART6 51-00-01 OR 51-00-19. CONTACT ENGINEERING PRIOR TO 28,996 PTC FOR INSP REQUIREMENTS 07 NOV SFO INF. AMM 53-31-93 HAS BEEN UPDATED WITH INSP REQUIREMENTS. THIS CF CAN BE DELETED.