DSSSOC Deep Submergence Systems Scope of Certification Program - PowerPoint PPT Presentation
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DSSSOC Deep Submergence Systems Scope of Certification Program
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... their lives when a vacuum was inadvertently drawn onboard USS GRAYBACK (SSG 574) ... This accident was the results of operator error, faulty equipment and ... – PowerPoint PPT presentation
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Title: DSSSOC Deep Submergence Systems Scope of Certification Program
1
DSS-SOC(Deep Submergence Systems Scope of
Certification) Program
- NAVSEA SS800-AG-MAN-010/P-9290
Approved for Public Release
2
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
3
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
4
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
5
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
6
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
7
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
8
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
9
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
10
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
11
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
12
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
13
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
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