Reason/For Identification of potential damage mechanism or potential locations Internal inspection Internal lining and deposit removal Onstream Inspection External inspection Thickness measurements Pressure tests Part Pressure Test Tightness test / non code pressure test Personnel & property damage risk should assess by Pneumatic test procedure NDE in place of pressure test PMI testing Crack like flaws and environmental cracking assessed Preferential weld corrosion Inspection at time of installation When RBI assessment exceeds 10 yrs reviewed & approved by External inspection interval established by Internal inspection interval established by Inspection interval for Pressure relieving devices Inspection deferral 10% of inspection interval or 6 months whichever less Deferral of inspection repair Deletion of inspector recommendation Repair Plan prepared by Repair and alteration work authorized by Alteration w.r.t to ASME Sec authorized by Hold points designated by Pre-authorization if inspector satisfied with repair organization and no pressure test Nozzle installation Temporary repairs Temporary fillet weld approved by Lap band repair Repairing a crack at discontinuity Local PWHT Rerating Personnel Corrosion Specialist Inspector Inspector in consultation with corrosion specialist Either inspector / examiner (if approved by inspector) Inspector / qualified personnel (if approved by insp.) Inspector / Examiner Inspector Engineer Owner / user Engineer (for pneumatic test) Engineer Engineer and inspector Inspector / Examiner Engineer / Corrosion specialist Inspector Inspector Engineer and inspector Inspector or engineer Inspector or engineer By inspector or engineer or other qualified individual as per owner or user’s QA system Inspector Inspector and inspection supervisor Engineer or inspection supervisor Inspector or engineer Inspector before work Engineer Inspector Inspector Engineer Approved by Inspector and engineer Inspector and engineer Inspector and engineer Engineer Engineer Manufacturer or owner/user engineer
