MID ATLANTIC Renewed for New Horizons

Overview

The vessel MID ATLANTIC underwent extensive maintenance and repair operations at our drydock facility from July 5, 2021, to July 22, 2021. The scope of work included hull cleaning and painting, valve servicing, anchor chain maintenance, and significant structural repairs. Below is an expanded overview of the critical activities executed during the drydocking period

Hull Maintenance and Painting

High-Pressure Washing

The hull of the MID ATLANTIC was thoroughly cleaned using a high-pressure washer with a force of 4000 psi. The washing process covered an area of 1100 square meters, from the keel to the waterline. This step was crucial for removing marine growth, dirt, and other contaminants, ensuring a clean surface for subsequent treatments

Sand Blasting

The entire hull, from the keel to the bulwarks, was sandblasted to a cleanliness level of SA 3.0 (white metal). This process included blasting all corroded areas and beveling the edges of the metal, covering an area of 1,458.51 square meters. Sandblasting to white metal is essential for preparing the surface for optimal adhesion of protective coatings

Painting

The hull was coated with three layers of paint, providing a total coverage of 4,375.53 square meters (1,458.51 sqm x 3). This multi-coat application enhances the vessel’s resistance to corrosion and marine fouling, extending the lifespan of the hull. Additionally, the draught marks were repainted in four areas, the vessel name in three areas, the Plimsoll marks in two areas, and the port of registry in one area. The waterline and bow thruster marks were also repainted, ensuring the vessel’s markings met regulatory standards and remained clearly visible

Sea Chest, Zinc Anodes, and Anchor Chain Maintenance

Sea Chest Maintenance

Four sea chest grids were opened, cleaned, power brushed, and painted with three coats of protective paint. This maintenance helps ensure the proper functioning of the sea chests, which are critical for the vessel’s cooling and ballast systems

Zinc Anode Replacement

A total of 73 zinc anodes were cropped and replaced on the hull. Zinc anodes are vital for protecting the vessel’s metal surfaces from galvanic corrosion, thereby preserving the integrity of the hull

Anchor Chain and Locker Maintenance

Both the port and starboard anchor chains were ranged and high-pressure washed, and the chain lockers were chipped, scraped, cleaned, and painted. The chains and anchors were also painted, and the chains were marked to facilitate safe and efficient anchor operations

Bilge and Ballast Tank Cleaning

Bilge Cleaning

The bilge areas in the main engine room and forward engine room were scraped, chipped, cleaned, and high-pressure washed. Proper bilge maintenance is critical for preventing the buildup of oil, sludge, and other contaminants, which can pose safety and environmental hazards

Ballast Tank Maintenance

Eight ballast tanks were jetted to remove all mud and debris, then cleaned and dried to prepare them for welding repairs. This process ensures the tanks are free of obstructions and in good condition for safe and efficient ballast operations

Propeller and Valve Servicing

Propeller Maintenance

The vessel’s propellers were polished using a power brush to achieve a smooth finish, which is essential for optimal performance and fuel efficiency

Valve Servicing

Several valves of various sizes were removed, serviced, painted, and reinstalled as part of the vessel’s routine maintenance. This included six 12” valves, four 4” valves, two 2” valves, and three 3” valves. Additionally, one 4” valve was replaced with a new valve, and a complete 6” valve with a pipe was installed in the sea chest. Three 12” sea chest strainers were also removed, serviced, painted, and reinstalled

Structural Repairs and Fabrication

Hull Plating Repairs

Significant hull plating repairs were conducted in multiple areas of the vessel, including the #2 and #3 ballast tanks, the engine room starboard side, and the bottom of the sea chest. These repairs involved cropping and replacing damaged plating to restore the structural integrity of the vessel

Frame Repairs

Structural frames in the #2 and #3 ballast tanks and the engine room starboard side were cropped and replaced. Frame repairs are crucial for maintaining the overall strength and stability of the vessel’s structure

Sea Chest and Piping Repairs

The bottom of the sea chest, as well as associated pipes and flanges, were cropped and replaced to ensure the proper functioning of the sea chest and prevent leaks

Additional Ballast Tank Repairs

Hull plating was also cropped and replaced in the starboard side #4 ballast tank, port side #1 ballast tank, and the #2 ballast tank. Additionally, plating on the starboard side engine room hull was cropped and replaced to address areas of significant wear and deterioration

Gallery