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74 Cards in this Set
- Front
- Back
Discuss the chain of command and how it applies to your DLSS up to the SCA.
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-SCA(NAVSEA/NAVFAC)
-CO -DIVISION OFFICER -MDV OR SENIOR DIVING SUPERVISOR -REC SUPERVISOR -DLLS MAINT TECH |
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When can you use substitute orings in a DLSS system with out NAVSEA approval?
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Never
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What is a DFS and how does it effect DLSS equipment?
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Specifications are engineered requirements such as type of materials,dimensional clearances, electrical values, vibration levels, flow rates and physicalarrangements to which components are purchased, installed, tested and maintained.
All DLSS are designed and constructed to specific technical physical requirements. It isimperative that every effort be made to maintain all systems and components to their designed specifications. There are, on occasion, those situations in which the applicable specifications can not be met and the system or component is controlled with a departure from specification. To maintain a precise control of any DLSS technical configuration, all deviations must be recorded and approved by the proper recertification authority. |
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What cleanliness methods will be used for hydrostatic and pneumatic testing on DLSS equipment air and oxygen, and what MIL STD does it fall under?
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DLSS cleaning methods used are NAVSEA-OOC4-PI-002 process instruction for cleaning diving systems. Ultrasonic sink capable of 180 deg solution, (NOC) Navy Oxygen Cleaner, NID and water, TSP ( Tri-sodium phosphate). All DLSS equipment will be cleaned IAW with MIL-STD-1622 for AIR/ MIL-STD-1330 for O2 systems. Hydrostatic testing will typically be conducted with Filtered Grade B water.
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What is the hydrostatic and pneumatic test (pressure drop test) criteria when does it need to be completed.
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System drop test is conducted when initially installed, after major overhaul/repair or at 2 year intervals IAW PMS.
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How do you document rework of a REC?
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Re-work is documented by adding a (-) mark after the REC number to indicate a REV to the REC.
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What happens to closed REC, and supporting documentation?
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REC’s and supporting documentation must be maintained for certification period, usually 3 years. If any OQE needs to be maintained past the certification period it shall be maintained until replacement of component.
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What are the DLSS responsibilities of a REC supervisor?
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The DLSS REC Supervisor shall be qualified to manage the routine operation and
maintenance of assigned DLSS. The REC Supervisor is responsible for training maintenance technicians, reviewing RECs prior to start of work, and filing and maintaining all required documentation related to DLSS maintenance. The REC supervisor must be thoroughly familiar with technical manuals and MIL-STD/MIL-SPECs that apply to system maintenance, cleanliness, and testing. The REC Supervisor reviews the work of the Maintenance Technician and signs RECs during opening and closing reviews. |
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State the purpose of re-entry control as it pertains to a certified DLSS?
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Re-entry control program is designed to provide guidance and procedure to DLSS craftsman in order to maintain DLSS systems in the as built-as certified condition. The REC program also provides the necessary OQE to be inspected for the certification process.
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The SCA shall specifically state what?
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specific guidelines that must be followed for the certification of new and existing U.S. Navy diving and manned hyperbaric diving and manned hyperbaric systems. The guidelines are provided for the design, construction, operation,
maintenance, repair, modification, and overhaul phases. U.S. Navy diving and manned hyperbaric systems include all surface-supplied diving systems, saturation diving systems, manned recompression chamber systems, tethered submersibles capable of hyperbaric operations, on-bottom habitats, diver worn equipment (except SCUBA), and handling systems used for maneuvering diving systems or personnel during manned operations. |
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What are the only two areas of certification?
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Hyperbaric and manned diving systems.
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What is your PSOB a checklist of?
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a. Equipment identification
b. Operating parameters c. Air supply system d. Mixed gas/oxygen supply system e. Electrical systems f. Diver handling system g. Validation of as-built system drawings h. Inspections, tests and re-entry control records (current certification period) i. Operating and emergency procedures j. Maintenance procedures (PMS) k. On-site survey l. Operational demonstration |
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What is in the scope of certification?
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A Certification Scope Notebook contains basic subsystem diagrams that outline those structures, subsystems, and equipment that are within the SOC as described in
the PSOB |
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What is the process instruction for compressor efficiency?
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NAVSEA-00C4-PI-004, Compressor Capacity Test
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What does the acronym PSOB stand for?
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Pre-survey outline booklet
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What documentation provides an accurate and auditable record of work with in the scope of certification?
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REC
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(True/False) The REC provides positive assurance that all systems; subsystems and components that have been breached are restored to a fully certified condition.
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True
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Who signs block 6 on the test and inspection form?
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DLSS Technician
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To determine whether work is within the SOC, references shall be made to what appropriate certification document?
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PSOB
Certification boundary drawings |
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Whose signature(s) are needed for re-entry?
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CO, Diving Officer or Delegated Authority with CO Letter
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The Diving Officer’s signature is required on a REC when?
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All associated REC’s are complete
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Work on DLSS equipment must always meet the requirements to support the certification, as prescribed by the?
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SCA
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REC records shall be maintained for a period of?
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3 Years, however REC packages shall be retained until the identical maintenance has been repeated (for instance a 60M-1)
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On a valve seat tightness test and inspection report, seat tightness will be conducted for a minimum of how many minutes?
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05 min
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What two types of DFS are there?
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Major, Minor
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What publication would you find the cleaning and testing of shipboard oxygen and nitrogen gas piping?
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MIL-STD-1330
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What publication would you find cleaning of shipboard compressed air systems?
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MIL-STD-1622
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What manual would you find piping devices?
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TED-010
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What manual would you find information on U.S. Navy diving & manned hyperbaric system safety certification?
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MAN-010
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Who are the different systems certification authorities and what are they responsible for?
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NAVSEA OOC - Responsable for Sea Commands
NAVFAC SCA - Responsable for Shore Installations |
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Where would you find the mechanical make-up, gas available, system limits, and the PMS of a diving system?
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PSOB
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List four ways that you can lose certification on a system?
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1. When the terms under which certification was
granted have been violated 2. a situation arises which would cause the equipment to be considered unsafe for continued use 3. When major repair or overhaul of an individual item of class-certified equipment is required 4. Not maintained in "as built" "as certified" |
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Who is the SCA for NSSF TRCS Chamber?
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NAVSEA
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What is OQE and why is it important to DLSS?
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Objective Quality Evidance - OQE is any statement of fact, either quantitative or qualitative, pertaining to the
quality of a product or service based on observations, measurements, or tests which can be verified. |
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System certification survey cards come in which categories?
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1A, 1B, 1C, 1D, II
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MIL-STD-1622 and MIL-STD-1330 are for what?
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1622 Air - 1330 O2
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What NSTM covers O-rings?
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078
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How often should air samples be taken?
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Every 6 months
4-8 month window |
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Who is overall in charge of NSSF Re-entry Control Program?
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Diving Officer
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The DLSS procedures provide the necessary instructions for maintaining the system in what?
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As Certified Condition
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Any disturbance of a joint in a certified system, whether it is breaking a mechanical joint, silver brazing or welding, removing a gauge for calibration or painting the interior requires?
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REC
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(True/False) A REC is not required for normal system operations, or the routine replacement of consumables, such as CO2 scrubber canisters, K-bottles, and compressor lubricating oil.
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True
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Who is over all in-charge of the DLSS program that pertains to diving and hyperbaric systems?
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NAVSEA OOC or NAVFAC OOCE
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The DLSS maintenance technician is responsible for what during a REC?
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- Responsible for completing the REC forms and obtaining the required signatures prior to work.
- Completing the required supporting forms, while performing the maintenance action in accordance with approved written procedures |
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Who has the final technical review signature for REC’s both prior to and upon completion of DLSS work?
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Senior Diving Supervise/MDV
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Whose signature is required as administrative approval for Re-entry and verification that work was satisfactorily completed?
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Commanding Officer
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(True/False) The first step in preparing to work on a DLSS is to identify what aspects of the work will fall within the SOC.
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True
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Once you have established the SOC documentation, located the work area within the certified boundary and properly identified all material involved you should?
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- Establish all actions necessary to accomplish the work involved
- Identify material control and inspection requirements - Use the system technical documentation |
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When performing a REC it maybe discovered that additional work is required, or procedures, which differ from the REC under which work is being performed. The action is requires what?
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Revision
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(True/False) You discover during the testing stage that you have pinched an O-ring, you would document a re-work in the REC log by placing a (-) in the original REC number followed by a sequential number. This number will be issued to identify all documentation associated with the re-work.
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True
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All planned maintenance (PMS) conducted on a system within the certification boundaries shall be accomplished by using only what approved maintenance procedures?
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NAVSEA/NAVFAC procedures
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Strict adherence to established repair parts control procedures is considered vital to maintaining a certified system. What regulates the material control for replacement of repair parts in a system?
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Bill of material is contained in the as-built drawing and in the operation and maintenance manual
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(True/False) Any component that cannot be verified as being cleaned per approved procedures shall be considered contaminated, and my not be installed in the DLSS until its cleanliness is verified.
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True
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Who reviews the REC to ensure technical specifications will be met, technical adequacy of procedures, cleanliness are adequate and verified, prior to signing that work is ready to commence?
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REC Supervisor
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Any statement of fact, either quantitative or qualitative, pertaining to the quality of a product or service based on observations, measurements, or tests which can be verified is call what.
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Objective Quality Evidence
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What log provides a record of command or unit entries into the SOC system or components and is used to summarize the chronological record of REC’s for the life of the certified system?
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Re-entry Control Log
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What is to be used as a continuation of any of the blocks on the REC form, or as needed to record supplemental data required to provide further guidance to the maintenance technician?
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Re-entry control continuation page
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What is used to provide a report for documenting component parts replacement, re-use, inspections, torque, and lubricants used?
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Controlled Assembly Report
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MIL-STD-1622 is what type of reference for DLSS?
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Cleaning of shipboard compressed air systems
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MIL-STD-1330 is what type of reference for DLSS?
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Cleaning and testing of shipboard oxygen and nitrogen gas piping
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NSTM 551 is what type of reference for DLSS?
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Compressed air plant systems
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NSTM 078 is what type of reference for DLSS?
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O-rings and seals
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Figure 1
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Re-Entry Control Log
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Figure 2
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Re-Entry Control Form
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Figure 3
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Re-Entry Control Continuation Page
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Figure 4
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Re-Entry Control Continuation Page Rework
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Figure 5
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Test and Inspection Report
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Figure 6
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Controlled Assembly Report
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Figure 7
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Test and Inspection Report, Joint Tightness Test
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Figure 8
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Test and Inspection Report, Valve Seat Tightness Test
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Figure 9
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Test and Inspection Report, Hydrostatic/Pneumatic Test
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Figure 10
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Test and Inspection Report, System Drop Test
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Figure 11
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Departure from Specifications Log
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Figure 12
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Request for Departure from Specifications Report
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