Table Of Content

Created on 10/7/2005 SURVEY SYSTEM CERTIFICATION REQUIREMENTS/GUIDELINES FOR AFLOAT AND PORTABLE RECOMPRESSION CHAMBERS AND SURFACE SUPPORTED DIVING SYSTEMS SYSTEM SURVEYOR ____________________________ SECTION I – GENERAL DATE: / / YES NO 1. Has the PSOB for Standard U.S. Navy Surface Supported Diving Systems or Recompression Chambers been submitted to and approved by NAVSEA 00C (USNCERTMAN SS521-AA-MAN-010 /Rev 1) 2. Are the primary and secondary air/gas systems clearly defined in the PSOB? (USNDM Vol. 2, Chpt. 8, Para.7.2 for SSDS Chpt. 22 Para 4 for RCC) 3. Are the drawings for all equipment within the Scope of Certification up to date reflecting the current "as-built" configuration? (USNCERTMAN SS521-AA-MAN-010/Rev 1 Chpt. 2 Para. 2-2.3 & Chpt. 3 Para. 3-2.8) 4. Do systems drawings identify all functional components by type, material, part or piece number, etc. and are designation numbers for components shown on the diagramatic/schematic drawings? (USNCERTMAN SS521-AA-MAN-010 Chpt. 3 Para. 3-2.8) 5. Do adequate Operating Procedures (OP's) and Emergency Procedures (EP's) exist for system line up and operation and are they approved in writing by NAVSEA 00C3? (USNCERTMAN SS521-AA-MAN-010 Chpt. 3 Para. 3-6 & USNDM Vol. 2, Chpt. 8, Para 8-7.2.1) 6. Does the Scope of Certification adequately define the boundaries and differentiate between in-scope and out-of-scope equipment? (DLSS Gen Specs Chap. 1 Para 2.5) 7. Have Re-Entry Control Procedures (REC) been officially established in writing? (USNCERTMAN SS521-AA-MAN-010 App. I-5) 8. Is REC procedure being followed and a log kept? (USNCERTMAN SS521-AA-MAN-010 App. I -7.1) 9. Are the air/gas systems and recompression chamber adequately covered by PMS? (USNCERTMAN SS521-AA-MAN-010/Rev1 Chpt 2 Para 8.b.3 and Chpt 3 Para 2.9.4 10. Are air samples taken every six months and are the sample reports available for review? (USNDM Vol. 1, Chpt. 4, Para. 4.1). 11. Is documentation available verifying that all divers' breathing gas meets the required purity standards? (USNDM Vol. 1, Chpt. 4, Para. 4.1). 1 Created on 10/7/2005 SECTION I – GENERAL DATE: / / YES NO 12. In installations where diving air systems receive air from or provide air for non-diving functions, are priorities established in writing assuring adequate air is available for diving and/or recompression chamber operation? 13. Are flexible hoses used for oxygen service of an approved type? (Teflon Lined)? (NSTM 550-7.6.2) 14. Do temporary installed flexible hose assemblies meet the requirements of S6430-AE-TED-010 Vol. 1 TECHNICAL DIRECTIVE FOR PIPING DEVICES, FLEXIBLE HOSE ASSEMBLIES? (USNCERTMAN SS521-AA-MAN-010 App. B Para. -10.4, App H Para 4.2.2.2.1.f and App K Para 4.e) 15. Are rubber flex hoses within their 12-year service life? (S6430-AE-TED-010 Chpt. 11 Para. 4) 16. Hoses and connectors used in application where they may be subject to mechanical loading, or if they were to fail and rupture, (and cause physical harm), are they provided with strain relief? & USNDM Vol 2, Chpt. 7, Para. 4.3) 17. Is air compressor suction located so as to avoid contamination or exhaust fumes? (USNCERTMAN SS521-AA-MAN-010 App. B Para. B-14.3.1.a, DLSS Gen Specs Chap 1 Para 3.13.1 & USNDM Vol. 2, Chpt. 7, Para. 4.4.1) 18. Is there a filter installed in the compressor air intake either at the weather deck end or prior to the line entering the compressor? (NSTM Chpt. 551 Para. 1.3.1 & 1.3.2 and Topside Tech Notes Vol 2 Issue 1) 19. Is maintenance being performed on DLSS compressors? (USNDM 4-4.1) 20. Is MIL-L-17331, 2190 TEP (normal operation), MIL-L-17672, 2135 TH (cold weather), or a NAVSEA approved lubricating oil being used in the compressors? (USNDM Vol. 2, Chpt. 8, Para. 7.2.2.4) 21. Is there a backpressure regulator installed between the compressor outlet and the accumulator for compressors with a discharge pressure over 1000 PSIG? (USNDM Vol. 2, Chpt, 8, Para. -7.2.2.8, DLSS Gen Specs Chap 1 Para 3.13.3 and Topside Tech Notes Vol 2 Issue 1) 22. Do low/medium pressure compressors operate in a discharge pressure range that is within 15 percent of maximum rated output pressure? (NSI Engineering Study "Use of Back Pressure Regulators in DLSS") 23. Are installed moisture separators within PMS recertification test/inspection requirements? (NSTM Chpt. 551 Para. 1.14.1.1.b & PMS MIP 5921/34 & DLSS Gen Specs Chap. 1 Para 3.13.4.1) 24. Are installed filter housings within PMS VIP inspection requirements? PMS MIP 5921/34) 2 Created on 10/7/2005 SECTION I – GENERAL DATE: / / YES NO 25. Are all permanently installed air/gas flasks within PMS recertification test requirements as defined by NAVSHIPS TECH MANUAL? (NSTM Chpt. 551 Para. 1.14.1.1.a, c thru e & PMS MIP 5921/34) 26. The method of recertifying MIL-F-22606 flasks is by using UT inspection. The UT procedure is defined and shall have a separate flask inspection report prepared in accordance with T9074-AS-GIB-010/271 for each flask. The following information as a minimum shall be included in the report: a. Is there a separate report for each flask tested? b. Are flasks identified by size and type? c. Is the magnetic particle and ultrasonic procedure(s) identified and approved? d. Are the inspector’s qualifications current? e. Is the date of each inspection recorded? f. Is the type of material recorded? g. Is the equipment used described by serial numbers (ultrasonic instruments and magnetic particle equipment)? h. Is the Ultrasonic transducer manufacturer, frequency, size, angle, and serial number recorded? i. Was ultrasonic couplant used? j. Are the ultrasonic calibration standard serial numbers recorded? k. Is the paint condition and the specific technique used to compensate for paint (thickness measurement and shear wave inspections) described? l. Is a unique number assigned to each reportable discontinuity? m. Are the specific locations of each discontinuity on the flask reported? (Reporting shall be such that the area can be relocated after the flask is painted). n. Is the length of each discontinuity, and the method used to measure the length recorded? o. Is the orientation of the discontinuity (eg. relative to the flask axis or weld direction) recorded? p. Is the ultrasonic peak amplitude in dB, relative to reference level recorded? q. Is the location of the discontinuity from the scanning surface recorded? r. Is the characterization of the discontinuity recorded? s. Did the flask pass? (T9074-AS-GIB-010/271) 3 Created on 10/7/2005 SECTION I – GENERAL DATE: / / YES NO 27. Are all Department of Transportation (DOT) type cylinders within the DOT hydrostatic test date requirements? (Code of Federal Regulations Chpt. 1 Vol. 49 Sect. 180.209) 28. Are composite flasks free of structural damage? (SS500-HK-MMO-010/LWDS App. D (Kevlar) & App. E ( Carbon Fiber)) 29. Are composite flasks being drained according to PMS and post diving procedures? ( LWDS Man. Table 2-13 and ) 30. Are HP air/gas flasks stowed so there is easy access for inspection and bleed off of accumulated moisture? On horizontal flasks check arrow to make sure it is pointed down. (DLSS Genspecs 1-3.12.1) 31. Have air/gas receivers (LP, MP volume tanks) been given a VIP inspection IAW PMS (Every 3 Years) (USNCERTMAN SS521-AA-MAN-010 App. B Para. B-4) 32. Is there relief valve protection downstream from all pressure reducing stations? (Topside Tech Notes Vol 1 Issue 2) 33. Is the relief valve set at 110 % of maximum working pressure and tagged with the pressure setting, date set and testing activity and has it been set/checked within past 3 years? (Topside Tech Notes Vol 1 Issue 2) 34. Are relief valves (except chamber relief valves) installed so they cannot be isolated from the system they are protecting? (Topside Tech Notes Vol 1 Issue 2) 35. Are all critical installed system gages within calibration? (USNCERTMAN SS521-AA-MAN-010 App. B Para. B) 36. Are all gages labeled, adequately supported, provided with isolation valves and mounted to allow for "blowout plug" operation? 37. Are valves, check valves, moisture separators, filters and regulators installed so that gas flow is in the direction of the flow arrows or inlet and outlet legends marked on the device? (DLSS Gen Specs Chap 1 Para 3.5.9g) 38. Are all valves and functional components identified with a label plate bearing the system designation number as it appears on the drawing? (DLSS Gen Specs Chap 1 Para 3.5& NSTM Chpt. 505) 39. Are all valve handwheels color-coded, where required? (NSTM Chpt. 505 & DLSS Gen Specs Chap 1 Para 3.5) 40. Are all valves and controls readily accessible? (DLSS Gen Specs Chap 1 Para 3.31 & Chap 1 Para 3.5.2a) 4 Created on 10/7/2005 SECTION I – GENERAL DATE: / / YES NO 41 Are all lines and piping runs labeled, color coded (where multiple service), and provided with flow direction arrows? (NSTM Chpt. 505 & USNCERTMAN SS521-AA-MAN-010 App. B Para. 10.1 & DLSS Gen Specs Chap 1 Para 3.5) 42. Are lines adequately supported with pipe clamps/brackets and are they protected from external forces when in an exposed location? (USNCERTMAN SS-521-AA-MAN-010 App. B Para. B-10 & DLSS Gen Specs Chap 1 Para 3.5.7) 43Are lines and pipe runs free from chafing or vibrating against hard edges and free from excessive vibration? (DLSS Gen Specs Chap 1 Para 3.5.7) 44. Are reducing stations provided with an emergency bypass or is there a second reducer installed in the system? (USNCERTMAN SS521-AA-MAN-010 App. B Para. B-10.3.b & DLSS Gen Specs Chap 1 Para 3.5.10.4) 45. Are there dust caps/bags on charging connections, manifold outlets, interface hose connections, and divers umbilical hoses when not in use? (DLSS Gen Specs Chap 1 Para 3.5.8.1) 46. Are all components (filters, air receivers, flasks, moisture separators, moisture traps, divers air manifold, etc.) that trap condensed water or oil mist provided with drain valves? (NSTM Chpt. 551, Para 1.12.3.2) 47. Confirm that any new components i.e. valves, reducers, pressure regulators, relief valves, etc., have been tested to 1.5 max system operating pressure. (MIL-STD 1330 Table V) 48. For 5000 PSI compressors used for charging 3000 PSI systems: Are relief valves in place to prevent over pressurization? (USNCERTMAN SS521-AA-MAN-010 App. B) 49 Are there provisions for lighting of diving control stations for night operations? (USNCERTMAN SS521-AA-MAN-010 App. B Para. B-10.8 & DLSS Gen Specs Chap 1 Para 3.8.7) 51. Are the DLSS maintenance workers, if working on O systems, qualified O clean 2 2 workers IAW 1330 section 5.14? Are qualification records available to SCA for review? (USNCERTMAN SS521-AA-MAN-010 Chapter 3 Para. 3.9) 52. Are O clean workers re-qualified every three years? 2 (MIL-STD 1330 Chapter 5 Para 14.3) Have new/refurbished valves been seat tightness tested? (MIL-STD-1330D, Table VII) 5 Created on 10/7/2005 SECTION II - SURFACE SUPPORTED DIVING SYSTEMS (AIR/MIXED GAS) YES NO DATE: / / 1. Is the primary air/gas system capable of supporting the maximum number of divers (both pressure & flow) during the most imposing dive specified in the PSOB? (DLSS Gen Specs Chap. 1 Para 3.4.1 ) 2. Is the secondary air/gas system capable of supporting the maximum number of divers (both pressure & flow) on an ascent from the most imposing dive specified in the PSOB if the primary system fails at the "worst case" time? (DLSS Gen Specs Chap 1 Para 4.1.1.1.5) 3. Is a Diver's Umbilical Hose Record Log maintained? (USNCERTMAN SS521-AA-MAN-010 App. B Para. B-9.3) 4. Are all air/gas systems filtered before reaching the diver? (DLSS Gen Specs Chap 1 Para 3.5.12) 5. Does the diving air/gas manifold have a pressure gage and gage isolation valve? (USNCERTMAN SS521-AA-MAN-010 App. B Para. B-9.2.b) 6. Are all surface supplied diving helmets used with this system listed in the PSOB? 7. Is there PMS coverage for HEOX Booster Pump Assembly? MIP 5921/175 8. Is ISO quality air being used to supply air for Haskel air motors? Haskel Air Quality Recommendation 9. Are any ECP’s installed or missing in system? 6 Created on 10/7/2005 SECTION III – RECERTIFICATION DIVE CHECKLIST DATE: / / YES NO 1. Conduct OP’s and line up system to dive with chamber lined up for Sur-D dive if applicable. 2. Set primary and secondary regulators for depth of dive: Primary regulator setting ___________ Secondary regulatory setting:___________ 3. Hook up 3 helmets to system and conduct helmet and umbilical checklist. a. Inspect helmet exterior for cleanliness, excessive wear: cracks, holes, or gouges deeper that 1/8” and damaged piping or components. b. Inspect helmet faceplate for nicks or scratches more than 1 inch long and 1/32” deep. Ensure all screws are secure and in place. c. Inspect neck dam and clamping device for damage and proper operation. d. Inspect helmet interior for cleanliness, damaged components, exposed wires, loose or missing electrical parts. e. Inspect oral nasal exhaust valves for proper operation should be clean, soft, and pliable. f. Inspect oral nasal and nose clearing device for proper operation and installation. g. Inspect helmet liner for cleanliness and torn or frayed material. h. Inspect helmet-locking ring for proper operation and damage. i. Remove second stage cover and inspect diaphragm for proper operation, should be clean, soft, and pliable. j. Inspect second stage interior for cleanliness. k. Inspect roller lever for proper operation. l. Re-install second stage cover and test operate purge button and dial-a-breath for proper flow. m. Inspect spider bands on EXO and MK 20. n. Inspect face seal on EXO and MK 20. o. Inspect side block, particularly valve stems for damage. 7 Created on 10/7/2005 SECTION III – RECERTIFICATION DIVE CHECKLIST DATE: / / YES NO p. Ensure umbilical and attached cameras and U/W lighting are on the ANU list. q. Inspect umbilical for proper seizing, strength member, and spinnaker shackle attachment. r. Inspect umbilical length for damage or excessive wear. s. Conduct inventory of all command Surface Supplied Diving Helmets: Helmet: How Many: Serial Number: MK-21 MK-20 EXO-BR-MS 4. If conducting operational flow test: a. Flow primary air to helmets and free flow all helmets. b. Monitor primary regulator; note drop on regulator outlet gage____________. c. Shift to secondary regulator; note drop on regulator outlet gage____________. d. Conduct pneumo test for all divers. 5. Start dive on primary air and verify primary air regulator tracks properly. 6. Once divers are on the bottom launch standby diver and have all 3 divers get together. 7. Have two divers take a vent while standby watches them, ensure regulator keeps up. 8. Verify depth gages compare. 9. Shift to secondary regulator and have two divers take a vent, ensure regulator keeps up. 10. Primary regulator psi___________sat__________unsat_______ 11. Secondary regulator psi___________sat__________unsat_______ 12. At dive supervisor’s discretion, shift back to primary regulator and have divers return to stage, verify regulator returns to set pressure: psi_________. 8 Created on 10/7/2005 SECTION III – RECERTIFICATION DIVE CHECKLIST DATE: / / YES NO 13. Surface divers and verify regulators track properly all the way up and depth gages compare. NOTE: If certifying a recompression chamber and conducting a SUR-D dive go to chamber checklist for manned dive. 9 Created on 10/7/2005 SECTION IV - RECOMPRESSION CHAMBER DATE: / / YES NO NOTE When conducting a survey of a recompression chamber that does not operate in conjunction with a surface supported diving system (i.e. Submarine Tender, ASDV'S Mobile Chambers, etc.) the appropriate portions of SECTIONS II and IV should be completed for the recompression chamber support systems. 1. Do calculations confirm that primary air system has sufficient air. (USNDM Vol5, Chpt. 22, Para. 4, Table 22-2 & DLSS Gen Specs Chap 1 Para 4.2.4.2). 2. Do calculations confirm secondary air system has sufficient air. (USNDM Vol. 5, Chpt. 22, Para 4 & Table 22-2). 3. Has interior of chamber been painted since last survey? a. If chamber has been painted was a NAVSEA approved painting procedure used? (USNDM Vol 5, Chpt. 22, Para. 6-2.4) 4. Has an air sample been taken from the chamber interior to ensure that no undesirable off gassing or contamination has occurred? (Accomplished on steel chambers after any interior painting has been done, and on all chambers after overhaul or rework. Sample should also be taken if contamination is suspected.) (USNCERTMAN SS521-AA-MAN-010 App. F Para. F-2) If painted, use NAVSEA-OOC3-P1-001 paint instruction for sample - if not painted, use regular sample. (NAVSEA-00C3-P1-001) 5. Has chamber been pressure tested within the last two years? (USNDM Vol 5, Chpt. 22, Para. 6-2 & Fig 22-13a). 6. Is the material in the oxygen system, including valves, piping, fittings, gages, hoses, lubricants and software of approved material? (DLSS Gen Specs Chap. 1 Para 3.6.5. (USNCERTMAN SS521-AA-MAN-010 App. B Para. B-10.5) 7. Are sufficient oxygen cylinders on station and can cylinders be readily connected and removed from the system while oxygen is in use? USNDM Fig. 22-11a 8. Does each installed BIBS mask have an isolation valve or quick disconnect? 9. Are chamber BIBS masks operating properly with adequate flow rates and no leaks? 10. Are chamber relief valves set at 110 psi and tagged with pressure setting, date set and testing activity? (Topside Tech Notes Vol 1, Issue 2 and DLSS Gen Specs Chap. 1 Para 3.5.10.3) 11. Are ball-type gag valves installed between the chamber and chamber relief valve? (DLSS Gen Specs Chap. 1 Para 3.5.10.3) & USNDM Vol. 5, Chpt. 22, Para. 2-5.4) 10