Section 1 In-service and maintenance
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Submarine Assurance Framework, July 2022 - Volume 1 Submarine Assurance - Part 2 Implementation - Chapter 3 In-Service Maintenance - Section 1 In-service and maintenance

Section 1 In-service and maintenance

Parent topic: Chapter 3 In-Service Maintenance

1.1 Verification activities

1.1.1 Verification activities carried out by LR during the in-service and maintenance phase of the submarine lifecycle are at the request of the Navy operating the submarine or the Maintenance Organisation.

1.1.2 Verification activities carried out by LR during the in-service and maintenance phase of the submarine lifecycle are verification activities carried out to confirm that the previously approved design and the requirements within previously approved project specifications, Rules, Codes and Standards continue to be satisfied while the submarine is in-service.

1.1.3 Verification activities are to be undertaken in accordance with the In-service Verification Plan. LR will advise the manufacturer or builder and Naval Administration where the systems, equipment and components are not in compliance with the design documentation, project specifications, Rules, Codes and Standards. The items identified are to be modified or a suitable engineering justification provided.

1.1.4 Verification activities carried out by LR while the submarine is in-service or undergoing maintenance are based on specific visits by LR’s Surveyors.

1.1.5 Verification activities may be carried out periodically in accordance with an agreed schedule or whenever any significant repairs or renewals are made in order to confirm that the requirements within the project specifications, Rules, Codes and Standards continue to be satisfied.

1.1.6 Verification activities carried out periodically typically include surveys carried out:

  1. Before the submarine is put into service;
  2. During deep maintenance or extended maintenance;
  3. During docking; and
  4. Annually.

1.1.7 Verification activities carried out following any modifications or change in operating context and are to include Design Verification and Product Verification confirming that the design, the materials and the workmanship of the repairs and renewals are of suitable quality, free from defects and in accordance with applicable specifications, Rules, Codes and Standards.

1.1.8 Design verification is to be undertaken where the degraded state does not meet the original design requirements defined in design information and design verification records.

1.1.9 Prior to verification, LR is to be satisfied that the capability, organisation and facilities of the submarine maintenance organisation are such that acceptable quality and integrity can be obtained for the maintenance and repair of the submarine and its systems, equipment and components. The requirements of the In-service Verification Plan are to be integrated with the maintenance organisation’s quality system.

1.1.10 Prior to verification, LR is to be satisfied that the Navy or the maintenance organisation has an established and documented maintenance management processes in place which include service and product procurement, configuration and change control, materials and equipment traceability, maintenance, inspection and testing processes.

1.1.11 Prior to verification, LR is to be satisfied that change control processes ensure that changes requiring update of the documentation relating to the submarine design or submarine operation are assessed to ensure that the update of the documentation is carried out at an appropriate frequency. Any changes to the ConOpS or operational envelope are to be incorporated prior to deployment of the submarine.

1.1.12 Prior to verification, LR is to be satisfied that configuration control processes ensure the traceability of materials and products following changes throughout the life of the components, equipment and systems.

1.1.13 The submarine Owner or maintenance organisation is responsible for maintaining a set of design and construction and in-service documentation and records to which LR will require access. Such records are to enable through-life material and equipment traceability and confirmation that systems, equipment and components have remained within safe operating limits while in-service.

1.1.14 The Owner will be responsible for provision of an updated operational envelope to enable safe operation of the submarine, component, product or system following maintenance and repair.

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