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FLOODING OVERVIEW FLOWCHART

FLOODING OVERVIEW FLOWCHART. External Investigation of Flooding. Flooding Fluid Temperature. Ensure Personnel Don Protective Clothing Before Entering Space for Extended Periods. Low Temp Poses Exposure Threat to Personnel. Yes. Compartment Above Waterline. Yes. Set FLBs,

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FLOODING OVERVIEW FLOWCHART

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  1. FLOODING OVERVIEW FLOWCHART External Investigation of Flooding Flooding Fluid Temperature Ensure Personnel Don Protective Clothing Before Entering Space for Extended Periods Low Temp Poses Exposure Threat to Personnel Yes Compartment Above Waterline Yes Set FLBs, Isolate Flooding Dewater with Installed Drains No No Send Investigators Into Space Determine Depth of Flooding Internal Investigation of Flooding Level Approaching Overhead Secure Space Set FLBs Yes Flooding from Structural Damage Go to Chart “1” Structural Damage No Yes Rate of Flooding No Flooding from Pipe Rupture Go to Chart “2” Pipe Rupture Yes Flood Before Source Determined Secure Space Set FLBs Yes No Investigate Nearby Compartments Expand FLBs Flooding from Progressive Flooding No Yes Set FLBs on Affected Compartment No Isolate Source of Flooding Source of Flooding Go to Chart “3” Dewatering Dewater Space Yes Determine Source/Type of Fluid No Monitor Ship Stability, Continue DC Actions, Investigation Electrical Power in the Space Electrical Power Poses Threat to Personnel Secure Space, Set FLBs Yes Determine Availability of Off-Ship Repair/ Salvage Teams No

  2. CHART 1 - FLOODING FROM STRUCTURAL DAMAGE Flooding from Structural Damage Set FLBs (if not set) Survey Flooding Source Continue with Flooding from Structural/Damage Path & Pipe Rupture Path Caused by Structural Damage/ Pipe Ruptures Yes No External Isolation Isolate without Sending Personnel into Space Conduct External Isolation Yes No Evacuate Space & Securing Compartment Depth of Water Prevents Access Yes No Patch/Plug Flooding Source Dewater while Patching/Plugging in Progress Shoring Required for Plugging Go to Chart “4” Shoring Yes No Structural Strength Compromised Go to Chart “4” Shoring Yes No Monitor Stability/Structural Integrity; Continue DC Actions/ Investigation of Damage

  3. - PIPE RUPTURE CHART 2 Flooding from Pipe Rupture Set FLBs (if not set) Fluid Type/ Characteristics (Type/Temperature/Pressure) Hazardous JP5 CHT Hydraulic Fluid Lube Oil Fuel Oil Steam Refrigerant Yes Hazardous Fluid? No Don Personnel Protective Equipment Rupture Location, Size, Extent Simultaneously Use Chart “3” Dewatering Redirect or Cover Fluid Can Rupture Be Isolated with Installed Valves? Can System Supplying Pressure to The Piping Be Secured Go to EOSS, SDOSS, MSFD No No Unisolatable Rupture Yes Yes Is the System Supplied by the Piping a Vital System that Must Stay On Line? Secure Pressure Source Yes Apply Patch No Other System Pressure Isolate Rupture with Valves Shut Additional Valves Was Isolation Effective? No Yes Will Repair Be Permanent or Temporary? Temporary Restore System, Check for Leaks Apply Patch Permanent Conduct Permanent Repair When Time Permits

  4. CHART 3 - DEWATERING Space Requires Dewatering Dewater Effectiveness Isolate Flooding Source/Establish FLBs Secure Source/ Compartment if Source Cannot Be Isolated Flooding Level Comparable to Ship’s Waterline Yes Establish Dewatering Priorities No Secure Source, Augment Dewatering Equipment Water Level Increasing Yes Installed Dewatering Systems Available Use Installed Dewatering System Yes No No Water Level Decreasing Augment Dewatering Equipment Yes Firemain Available Dewater Using Portable Eductors Yes No No Monitor Ship’s Stability Electrical Power Secured Dewatering Adversely Affects Ship’s Stability Reexamine Stability/ Dewatering Priorities Yes Repair Personnel Evacuate Space Rig Electrical Submersible Pumps Yes No Continue Dewatering/Restore Vital System No Extra Personnel Required to Operate Pumps Obtain Additional Personnel Yes Monitor Stability/Structural Integrity; Continue DC Actions/ Investigation of Damage No Dewater Using P100 or P250 Portable Pumps

  5. CHART 4 - SHORING Structural Damage Determine Shoring Type Can Direct Compression Be Used? Use I or H Shore Yes Determine Anchor Points No Use K Shore Build Additional Anchor Supports Rapid Support Required Use Metal Shores Yes No Use Wood Shores Determine Staging/Cutting Area Erect Wood, Metal, or Combination Support/Anchor Structure Additional Support Structure Required? Yes No Measure/ Cut Shores Erect Structure Tighten Structure Set Shoring Watch

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