What was found
DURING HEAVY MAINTENANCE, CRACK INDICATION ON FRAME 36 CWB VERTICAL STRINGER 6, OPEN FASTENER H OLE ON ZONE 1, CRACK DIRECTION IS 12 OCLOCK, CRACK DEPTH IS 0.110 INCH , IN FWD CARGO COMPARTMENT (1 EA)(-Y1292); ACCOMPLISHED REPAIR OF CRACK DAMAGES ON THE CENTER WING BOX FRONT SPAR HORIZONTAL BEAM AT LEVEL OF FR36 AND -Y1292 IN ACCORDANCE WITH AEROMAN EA 57-0036-26. AIRBUS RDAF 81801723/003/2026 ISSUE A. AND EC NO: A26-513-01. THIS REPAIR IS CATEGORY B. PERFORMED ROTOTEST ON REAMED HOLE NO CRACK INDICATION FOUND IAW NTM 51-10-18. TH= IT= 11,500FC/ 23,000 FH, METHOD INSPECTION 1: ROTOTEST AFTER FASTENER REMOVAL AND AFTER BUSH REMOVAL IAW NTM 51-10-01 AND NTM 51-10-18 AND METHOD INSPECTION 2: HFEC OF THE SPAR VERTICAL STRINGERS RADIUS AND THE HORIZONTAL FLOOR BEAM RADIUS IAW NTM 51-10-08 AND ISB57-1178.