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and/or API RP 54 bolted connections broken wires CATENARY CENTERLINE Check concentrated loads Corroded OK corrosion Cracked Welds Needs Cracked Welds OK Cracked Welds Safety Damaged Corroded Damaged Cracked Welds Damaged OK DERRICK OR MAST drilling equipment ground conditions GUY GUY GUY guying pattern GUYWIRE ANCHORS guywire loads INSPECTION OF DERRICK kinking LETTERS PATENT load capacities load transfer mechanisms location preparation lowering operation lubrication manufac manufacturer Manufacturer's Assembly Drawing MAST AND SUBSTRUCTURE MAST DERATING mast manufacturer's recommendations mast support structure MASTS WITH GUYLINES Minor Major Number Of Visible OK OK OK OK Safety Pins picking for removal PORTABLE MASTS pull testing qualified person Recommended Practices Reference API RP replaced REPORT OF VISUAL safe bearing capacity SECTION Servicing Structures Sheaves soil SPACING AND CAPACITY SUBSTRUCTURE Sample Form supplemental footing tion TUBING CROWN Visible Marks Applied VISUAL FIELD INSPECTION Welds Need Repairs Welds Safety Pins wellhead wellsite location wellsite owner/operator wire rope