DSSSOC Deep Submergence Systems Scope of Certification Program

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DSS-SOC(Deep Submergence Systems Scope of
Certification) Program

• NAVSEA SS800-AG-MAN-010/P-9290

Approved for Public Release
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DSS-SOC

• In 1982, five divers lost their lives when a
  vacuum was inadvertently drawn onboard USS
  GRAYBACK (SSG 574). This accident was the
  results of operator error, faulty equipment and
  an inadequate design. This led to redesign of
  diving systems to ensure a vacuum could not be
  drawn. It also led to requiring safety analysis
  during design for all systems and certification
  of all material within the Scope of Certification
  (SOC).

Approved for Public Release
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DSS-SOC

• Deep Submergence System
• Those systems and components which, when working
  together, provide the capability for manned
  operations.
• Scope of Certification
• The SOC of a DSS is comprised of those systems,
  subsystems and components and the associated
  maintenance and operation procedures required to
  provide maximum reasonable assurance that DSS
  personnel are not imperiled during systems
  operations.

Approved for Public Release
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Objective Quality Evidence (OQE)

• OQE is a statement of fact, either quantitative
  or qualitative, pertaining to the quality of a
  product or service based on observations,
  measurements, or tests that can be verified.

Approved for Public Release
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Identification of DSS-SOC Items

• Electric Boat Purchasing Standard Clause 12-34
• Deep Submergence Systems Scope of
  Certification
• No specific action is required of the Supplier
  by this clause alone. This clause is applied to
  identify that the subject part number is a Deep
  Submergence Systems Scope of Certification
  (DSS-SOC) item which requires Certification
  and/or Test Reports defined elsewhere in the part
  number.
• Special care should be taken to maintain
  required Certifications and/or Test Reports for 7
  years after close of the purchase order, as
  required by Electric Boat Specification 2678.
  All applicable Certifications and/or Test Reports
  must be traceable to the Purchase Order and must
  accompany the shipment to the address specified
  by the Purchase Order.
  

Approved for Public Release
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Certification for Manned Use of DSS-SOC Equipment

• Functional Audits of Shipyard Quality System
• Certification Audits of Ship
• Phase I
• Phase II
• Maintenance of Certification

Approved for Public Release
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Material Control

• Material Control Division A
• Material where a single failure would result in
  loss of DSS Personnel
• Material Control Division B
• Material where failure would require immediate
  emergency corrective action
• Material Control Division C
• All other material not Division A or B

Approved for Public Release
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DSS-SOC Safety Concerns

• Toxic Off-gassing
• Implodable Volumes
• Explodable Volumes
• Certification of Correct Material
• Certification of Testing
• Maintenance of Certification
• Cleanliness

Approved for Public Release
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Certificate of Conformance

• Required by Electric Boat Standard Clause 12-4
• Required for all DSS-SOC Material
• Certification of Conformance Test
• Required when invoked by Electric Boat Standard
  Clause 12-36

Approved for Public Release
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Certification of MIL-STD-1622 Critical Cleanliness

• Invoked By Electric Boat Standard Clause 76-9BM
• Test Report for Cleaning Results is Required
• Identification per Paragraph 5.16.4.1 is Required
• Proper Packaging is Required
• MIL-STD-1330 Oxygen Cleaning is allowed

Approved for Public Release
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Certification of Implodability Testing

• Hydrostatic Testing requires cycling from zero
  pressure to operating pressure for 10 cycles
• Test Reports must contain all required
  information specified by the Purchase Order
• Test Reports must be signed by the test operator
  and inspector
• Serial Numbers for each item are required and are
  to be traceable to the Test Reports

Approved for Public Release
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Common Problems

• Incorrect Lubricant used
• Incorrect or unapproved paint used on Label
  Plates
• Required Certifications from subtier suppliers
  are unavailable
• Cleanliness requirements have not been met or are
  not maintained
• Stickers/Labels required for MIL-STD-1622 or
  MIL-STD-1330 Cleanliness are missing or
  incomplete
• Traceability from hardware to Test Reports is
  missing

Approved for Public Release
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Summary
Approved for Public Release

• The lives of DSS-SOC Personnel depend upon
• Compliance with the approved design
• Use of approved and correct materials
• Compliance with Testing and Certification
  Requirements
• Compliance with Cleanliness, Packaging and
  Marking Requirements
• Compliance with OQE Requirements