its original position. BNOC would later contract the massive semi-submersible workshop, Narwhal, on a “no cure, no pay” basis to remove the riser and take it to shore. On March 20, 1979, BNOC authorized the repair and re-installation of the Thistle SALM. Five months later, divers Richard A. Walker and Victor F. "Skip" Guiel Jr. were killed during the re-installation of the SALM. see Wildrake diving accident References Tankers