The Marine Services Division’s Engineering Capabilities include:
- Writing the technical work packages required to accomplish complex ship repair and component overhaul tasks
- Full service design agent and In-Service Engineering Agent (ISEA) for the U. S. Dry Deck Shelter Program
- Designing Field Changes and other alterations for Dry Deck Shelters and their associated U. S. Navy submarines
- Computer aided Finite Element Analysis of alterations and other engineered designs
- Preparation of Job Material Lists
- Superior technical resolutions to deficient as-found conditions discovered during shipboard repair work
Drawings and Changes
The Dry Deck Shelter (DDS) Planning Yard (PY) manages and controls changes to the DDS Configuration Baseline. The current DDS configuration is defined by system and component drawings and technical data. All DDS drawings are developed and maintained in accordance with ASME Y14.100. New drawings and major changes are initiated using Computer Aided Design technology.
Alterations and Design Upgrades
The DDS PY coordinates the preparation of an Alteration and Improvement (A&I) as directed by the Navy’s lead engineering organization, Commander, Naval Sea Systems Command (NAVSEA), through the cognizant Host Ship Planning Yard. These A&Is are specifically applicable to the DDS support systems installed on the “Host” Submarines.
Field Changes
A Field Change (FC) is the configuration management tool used to execute design changes in the approved configuration baseline of the DDS and its support equipment throughout the Shelter’s life cycle.
Liaison Action Requests
The Liaison Action Request (LAR) is the tool used by sailors in the Fleet and other maintenance and repair personnel to report, resolve, and document problems associated with approved drawings and procedures. The DDS PY is responsible for the resolution of the reported issues, and the appropriate distribution of the answered LARs generated in the DDS Program.
Technical Data Documentation
The DDS PY maintains Technical Data, which includes publications, instructions, and documentation necessary to support the operations, maintenance, certification, and mission support requirements of a DDS throughout its life cycle. All data and documents prepared for use in the Shelter Program provide sufficient guidelines and responsibilities for maintaining the DDS in a certified condition.
SolidWorks & Finite Element Analysis
Engineers in the Dry Deck Shelter Planning Yard utilize SolidWorks 3-D design software to create virtual models of the components and systems they work on. After creating these virtual models, the Engineers use a number of engineering analysis tools to optimize the performance of components used on the Dry Deck Shelter. Among the tools used frequently by the Planning Yard are COSMOSWorks, FloWorks, and MathCAD.
Integrated Logistic Support
The DDS Planning Yard is responsible for implementing and maintaining the Integrated Logistic Support (ILS) Plan for the DDS Program. The DDS PY logistic support responsibilities include: Selected Record Data, Maintenance Planning, Configuration Management, Supply Support, Life Cycle Evaluation, and Impact Assessment. Products and services include:
- Maintenance Requirement Cards (MRCs)
- Maintenance Index Pages (MIPs)
- Coordinated Shipboard Allowance Lists (COSAL)
- Technical Manuals (TMs)
- Ships Configuration and Logistics Support Information System (SCLSIS)
- Provide inputs for the Uniform Inventory Control Point (UICP) Weapons Systems File (WSF) database
- Provisioning for new Field Changes
- Maintain and update provisioning as drawings are revised
Rotatable Pool
The DDS Planning Yard manages the DDS Contingent Spare and Rotatable Pool for COMNAVSPECWARCOM. The pool provides equipment, parts, and material to SEAL Delivery Teams (SDVTs) ONE and TWO and to the DDS Host Submarines typically during Restricted Availabilities and Regular Overhauls. The DDS Rotatable Pool is a stocking point of depot level repairable major assemblies and components. When a pool asset is installed, the removed component/carcass is returned to the DDS Planning Yard where it is repaired, overhauled, or restored as necessary, off-line, in accordance with approved procedures, and returned to the Rotatable Pool for the next required use.
Planning Capabilities
OII-MSD has Submarine Safety (SUBSAFE) and Deep Submergence Scope of Certification (DSS-SOC) Planners who routinely prepare the formal work packages that control the quality of work performed by OII-MSD. These uniquely talented Planners identify the material required for a job, and initiate procurement to obtain these parts to meet often tight schedules.
Depending upon the level of Objective Quality Evidence (OQE) required for the work, the Planners prepare the appropriate formal work packages including the required OQE forms so that the work can be certified. These formal work packages follow the same discipline as U.S. Naval Shipyards to integrate with the final certification process for at-sea operations.
OII-MSD maintains a Technical Library within Planning that serves the Planners, Engineers, and Waterfront Technical Departments.
Tools used by the Planners include:
- Technical Library and ATIS (Advanced Technical Information System) format that maintains a complete inventory of the latest SUBMEPP and NAVSEA technical manuals, and the latest OrdAlt, ShipAlt, and TempAlt instructions identified through the Ships Configuration Logistics Support Index (SCLSIS).
- ATIS format that includes drawings and associated Technical Variance Documents (TVD) for SSN-688 Class, SSN-726 Class, and SSN-21 platforms.
- Computer programs (WORD, EXCEL, ACCESS) and the infrastructure to develop Technical Work Documents (TWD), and Flushing and Test Procedures used in major and minor repairs and alterations on various shipboard air, hydraulics, weapons, structural, and mechanical systems.
- Maintain an up-to-date selection of all Mil Standards and Mil Specs through the use of the HAYSTACK database.
- Maintain a classified inventory of references used in TWD development.
- Access to various technical manuals used to support repairs onboard surface ships and diving operations.

