FLOODING OVERVIEW FLOWCHART

ExternalInvestigationof Flooding

Monitor ShipStability, Continue DCActions, Investigation

Determine Availabilityof Off-Ship Repair/

Salvage Teams

CompartmentAbove

Waterline

Set FLBs,Isolate Flooding

Dewater withInstalled Drains

DetermineDepth ofFlooding

LevelApproaching

Overhead

Secure SpaceSet FLBs

Rateof

Flooding

Flood BeforeSource

Determined

Secure SpaceSet FLBs

Set FLBson Affected

Compartment

Sourceof

Flooding

DetermineSource/Type

of Fluid

ElectricalPower inthe Space

ElectricalPower Poses Threat

to Personnel

SecureSpace, Set

FLBs

FloodingFluid

Temperature

Low TempPoses Exposure Threat

to Personnel

EnsurePersonnel Don

Protective ClothingBefore Entering

Space forExtendedPeriods

SendInvestigatorsInto Space

InternalInvestigation of

Flooding

IsolateSource ofFlooding

Flooding fromStructuralDamage

Floodingfrom PipeRupture

Go toChart “1”StructuralDamage

Go toChart “2”

PipeRupture

Flooding fromProgressive

Flooding

DewaterSpace

InvestigateNearby

CompartmentsExpand FLBs

Go toChart “3”

Dewatering

Yes

No

Yes

No

Yes

No

Yes

No

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

CHART 1 - FLOODING FROM STRUCTURAL DAMAGE

Flooding fromStructural Damage

Set FLBs(if not set)

SurveyFloodingSource

Caused byStructural Damage/

Pipe Ruptures

ExternalIsolation

Continue withFlooding from

Structural/DamagePath & PipeRupture Path

Isolate withoutSending Personnel

into Space

ConductExternalIsolation

Depth ofWater Prevents

Access

EvacuateSpace &Securing

Compartment

Patch/PlugFloodingSource

Dewater whilePatching/Plugging

in Progress

StructuralStrength

Compromised

ShoringRequired for

Plugging

Monitor Stability/StructuralIntegrity; Continue DC Actions/

Investigation of Damage

Go toChart “4”Shoring

Go toChart “4”Shoring

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

CHART 2 - PIPE RUPTURE

Flooding fromPipe Rupture

Set FLBs(if not set)

Fluid Type/Characteristics

(Type/Temperature/Pressure)

HazardousFluid?

HazardousJP5 CHT Hydraulic Fluid Lube OilFuel Oil Steam Refrigerant

Don PersonnelProtectiveEquipment

Redirector Cover

Fluid

Go toEOSS,

SDOSS,MSFD

RuptureLocation, Size,

Extent

CanRupture

Be Isolated withInstalledValves?

Is theSystem Supplied

by the Pipinga Vital System that

Must Stay OnLine?

Isolate Rupturewith Valves

WillRepair Be

Permanent orTemporary?

ShutAdditional

Valves WasIsolation Effective?

ConductPermanent Repair

When Time Permits

ApplyPatch

RestoreSystem, Check

for Leaks

SimultaneouslyUse Chart “3”

Dewatering

CanSystem Supplying

Pressure to ThePiping BeSecured

UnisolatableRupture

Apply Patch

OtherSystemPressure

SecurePressureSource

Permanent

Temporary

Yes

No

Yes

No

Yes

No

No

No

Yes

Yes

CHART 3 - DEWATERING

Space RequiresDewatering

Isolate FloodingSource/Establish

FLBs

EstablishDewatering

Priorities

InstalledDewatering Systems

Available

FiremainAvailable

ElectricalPower

Secured

RepairPersonnel Evacuate

Space

ExtraPersonnel Required

to OperatePumps

DewaterUsing P100 or P250

Portable Pumps

UseInstalled

DewateringSystem

DewaterUsing

PortableEductors

RigElectrical

SubmersiblePumps

ObtainAdditionalPersonnel

DewaterEffectiveness

Flooding LevelComparable to Ship’s

Waterline

WaterLevel

Increasing

WaterLevel

Decreasing

MonitorShip’s Stability

DewateringAdversely Affects

Ship’s Stability

ContinueDewatering/Restore

Vital System

Monitor Stability/StructuralIntegrity; Continue DC Actions/

Investigation of Damage

SecureSource/

Compartment ifSource Cannot

Be Isolated

SecureSource,

AugmentDewateringEquipment

AugmentDewateringEquipment

ReexamineStability/

DewateringPriorities

Yes

Yes

No

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

StructuralDamage

CHART 4 - SHORING

Can DirectCompression

Be Used?

DetermineShoring Type

Use KShore

Use I or HShore

DetermineAnchorPoints

Build AdditionalAnchor Supports

RapidSupport

Required

UseMetalShores

Use WoodShores

DetermineStaging/Cutting

Area

AdditionalSupport Structure

Required?

Measure/Cut Shores

ErectStructure

SetShoring Watch

Erect Wood,Metal, or

CombinationSupport/Anchor

Structure

TightenStructure

Yes

No

Yes

No

Yes

No