The U.S. Coast Guard's Computerized Maintenance System (CMS) outlines procedures for scheduled and unscheduled maintenance of its aircraft and surface assets, specifically focusing on underwater inspections and cleaning protocols. This document emphasizes the importance of compliance with environmental regulations, like minimizing copper-based antifoulant paint discharge during hull cleaning. It details preliminary and final steps for maintenance, including equipment lockout processes and documentation requirements, aiming to ensure safety and operational readiness. Key inspections include evaluation of marine growth, corrosion, structural integrity of hull and appendages, and the condition of cathodic protection systems. Technicians are instructed to record discrepancies and complete comprehensive reports following inspections. The involvement of commercial dive services must also be coordinated through specific channels. The CMS aims to facilitate structured maintenance, ensuring regulatory compliance and asset longevity, highlighting the U.S. Coast Guard’s commitment to operational efficiency and environmental stewardship during maintenance activities.

The U.S. Coast Guard's Computerized Maintenance System document outlines procedures and requirements for the maintenance and replacement of underwater zinc anodes across various hulls. It provides a structured methodology for scheduled and unscheduled maintenance, detailing the steps necessary for replacing bow thruster gear case anodes, tunnel anodes, sea chest grate anodes, stern tube anodes, and propeller zinc plates. The document emphasizes the importance of following safety protocols, including proper tagging and equipment lockout procedures, to ensure the safety of personnel during maintenance activities. Key references guide technicians in executing these processes, highlighting specific parts and materials, their identification numbers, and necessary tools. The document also incorporates a parts and service request section for efficient logistics management. Overall, it serves as a critical resource for Coast Guard personnel to maintain operational readiness and efficacy while ensuring compliance with safety and technical standards.

The file outlines the requirements for a contractor to clean and inspect the underwater (U/W) body of the USCGC WILLIAM SPARLING, as well as to renew bolt-on zinc anodes while the vessel is docked in Boston, MA, from March 10-13, 2025. Key tasks include cleaning both U/W surfaces of marine growth and other contaminants, polishing propellers, and renewing government-furnished anodes using specified procedure cards. The contractor must submit video documentation of the U/W body before and after cleaning, perform protective measures to avoid contamination, and ensure no damage occurs to existing coatings during the cleaning process. Detailed materials, including anodes and screws, along with their estimated costs, are also listed, emphasizing the need for precise replacement and adherence to Coast Guard specifications. References include Coast Guard drawings and standards outlining general requirements for maintenance, providing a structured approach to the project. This summary highlights the federal government's commitment to maintaining vessel integrity and operational efficiency through careful management of service contracts and maintenance procedures.