CASE STUDY LIFTING OF SUB-SEA HANG-OFF LIFTING FPSO HANG-OFF BEND RESTRICTOR FLANGES TO ACCESS CORRODED HYDRAULIC HOSES MINIMAL AND ZERO-GAP FLANGE SPREADING BY DIVERS CS_2013_02_Rev01_A4 | 25/10/13 | PAGE 1/2 were found to lack the nylon spacer rings which should maintain a flange access gap. As a result the hang-off units had dropped so that the flanges were face-to-face, and heavily corroded together. PROBLEM Dive teams had been unabl

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