What was found
C4 CHECK - DURING INSP FOUND CORROSION ALONG FS 280 BUTTSTRAP BETWEEN STR 26L AND 26R. REMOVED FASTENERS FOM IAW SRM 51-42-06-001-001-A01. BLENDED CORROSION BETWEEN STRINGERS, ORIGINAL THICKNESS .100, BLENDED .008 MATERIAL FROM STRAP, REMAINING MATERIAL THICKNESS .092, NO DAMAGE ALLOWED AREA IAW SRM 53-21-06-101-002-A02. PERFORMED ECI ON BLENDED AREA, NO CRACKS OR CORROSION FOUND AT THIS TIME IAW NDTM 51-20-006-250-A01. SENT ENGINEERING REQUEST TO MFG. RECEIVED ENGINEERING FROM MFG, AREA IS ACCEPTABLE AS IS IAW REO 670-53-21-596. REPLACED FASTENERS AS REQUIRED IAW SRM 51-42-06-001-001-A01. TREATED, PRIMED, PAINTED AND APPLIED CORROSION PREVENTATIVE COMPOUND TO AREA IAW SRM 51-21-11-101-001-A01, 51-25-06-001-A01, 51-25-16-001-001-A01 AND 51-21-11-001-001-A01. ALL WORK IN CONFORMITY WITH HORIZON AIR TASK CARD REO670-53-21-596.