In water Boiler blow down repair. Pre-fabrication of Boiler's Blowdown Stud Pipe work  was carried out in the work shop before arrival of the vessel. During cargo operations FN Diving technicians placed cofferdam assuring dry working conditions and slowing for full penetration Class approved welding. Internal technicians directly started with removal of existing damaged Overboard pipe before commencing with the welding scheme to place the new stud pipe. All operations were finished with full NDT and Class approval within the 14 hour cargo operations of the vessel. Also look at our section on hull repair.