Lengthening the vessel for 10,2 metres inmidship with lengthening of all cables and piping system iwo cutting line. Installing of the new heating system for HFO including new coils in modified tank. Extension of freezing system and installing of new coils. New piping arrangement made of 316 L material. Reinstallation of freezing compressors and condensers, installation of new electrical, automatic & control system for ammonia piping. New insulation with mineral wool/polyurethane foam and laminated plywood lining in new part of the fish hold and fish processing area. Execution of new fish processing room arrangement: adaptation of existing equipment. Sandblasting and painting the hull, decks and deckhouse. Installation of new trawl winch and net drum with adaptation of existing low pressure hydraulic system and new control system for the winches. Modification of aft trawl gallows and new arrangement of the deck fishing equipment. Change of the double bottom tanks arrangement with modification of the ballast and fuel oil transfer system.