LDA 3

• Audit Title

• Document No.

• Client / Site

• Conducted on

  Date

• Prepared by

• Location
  Address

• Personnel

• Select date

  Date

1. SYSTEMS, EQUIPMENT & INSTRUMENTS

DP System

• Describe the Environment Reference System Elements role in the DP System

  Yes

  No

  N/A

• Describe the Power Generation Elements role in the DP System

  Yes

  No

  N/A

• Describe the Position Reference Systems role in the DP System

  Yes

  No

  N/A

• Describe the Heading Reference Systems role in the DP System

  Yes

  No

  N/A

• Describe the Thruster and Propulsion Systems role in the DP System

  Yes

  No

  N/A

• Describe the Control Elements role in the DP System

  Yes

  No

  N/A

• Use training manuals provided by the DP supplier

  Yes

  No

  N/A

• Verify updates and/or upgrades of the DP-system

  Yes

  No

  N/A

• Act in accordance with the vessels DP operations manual

  Yes

  No

  N/A

• Apply vessel / client specific procedures with reference to the DP operation

  Yes

  No

  N/A

• Interpret vessels Failure Modes and Effects Analyses

  Yes

  No

  N/A

• Explain the implications of identified FMEA

  Yes

  No

  N/A

• Describe tests carried out during annual trials

  Yes

  No

  N/A

DP-related vessel systems and technical equipment

• Recognise DP-related vessel systems and technical equipment

  Yes

  No

  N/A

• Interpret relevant information / documentation about all DP-related vessel systems and technical equipment

  Yes

  No

  N/A

• Describe propulsion, thrusters, rudder types and allocation on own ship

  Yes

  No

  N/A

• Verify DP-related changes in vessel systems and technical equipment

  Yes

  No

  N/A

• Verify that all DP-related vessel systems and technical equipment are up and running

  Yes

  No

  N/A

• Operate all DP-related systems on the bridge

  Yes

  No

  N/A

• Recognise technical issues which may limit or stop DP operations

  Yes

  No

  N/A

Sensors

• Explain the working principle and purpose of heading sensors (gyro)

  Yes

  No

  N/A

• Explain the working principle and purpose of wind sensors

  Yes

  No

  N/A

• Explain the working principle and purpose of Vertical Reference Sensors (VRS)

  Yes

  No

  N/A

• Explain the working principle and purpose of other sensors used in the working environment

  Yes

  No

  N/A

Position Reference Systems (PRS)

• Explain the operation and limitations of the systems used on board (e.g. Cyscan, Fanbeam, satellite-based PRS, RADius,Artemis, Tautwire, hydro acoustic systems, DARPS, RadaScan, INS)

  Yes

  No

  N/A

• Demonstrate the proper use of the systems used on board (e.g. Cyscan, Fanbeam, satellite-based PRS, RADius, Artemis,Tautwire, hydro acoustic systems, DARPS, RadaScan, INS)

  Yes

  No

  N/A

• Evaluate availability of various PRS and sensors (Gyro, Wind, VRS, etc.)

  Yes

  No

  N/A

• Evaluate most appropriate PRS for specific DP-operations

  Yes

  No

  N/A

• Determine which PRS to use for each specific operation

  Yes

  No

  N/A

• Explain the redundancy requirements for IMO DP Class 1, 2 and 3 (PRS, thrusters, generators, etc.)

  Yes

  No

  N/A

• Describe occurrences which may influence PRS

  Yes

  No

  N/A

• Evaluate consequences of failures in PRS

  Yes

  No

  N/A

• Explain the potential risks by using relative and absolute PRS simultaneously when alongside moving objects

  Yes

  No

  N/A

Coordinate Systems for Navigation

• Describe the different coordinate systems used in DP-operations (e.g. UTM, Geographic)

  Yes

  No

  N/A

2. PROCEDURES AND TASKS

Navigational & DP Watchkeeping

• Describe the watchkeeping organisation on board, authority and distribution of tasks between members of the bridge team,when under DP

  Yes

  No

  N/A

• Describe the role, tasks and responsibilities of the DPO, under DP

  Yes

  No

  N/A

• Describe the role, tasks and responsibilities of the responsible person for the bridge watch, under DP

  Yes

  No

  N/A

• Decide which bridge team member is in command of the vessel

  Yes

  No

  N/A

• Recognise the importance of minimising distractions for the DPO

  Yes

  No

  N/A

• Emphasize the importance of an external focus when controlling a vessel close to installations or other objects

  Yes

  No

  N/A

• Communicate issues related to station keeping, change of manoeuvring control position and change of command to bridge team members in a clear and formal manner

  Yes

  No

  N/A

• Recognise situations in which to call the master to the bridge

  Yes

  No

  N/A

• Log DP-related incidents

  Yes

  No

  N/A

Required Alert Level for DP Operator

• Anticipate worst case failures, knowing immediate actions required

  Yes

  No

  N/A

• Anticipate loss of any position reference system during operations, knowing immediate actions required

  Yes

  No

  N/A

• Monitor position reference systems in anticipation of the possibility of failure causing instant/violent reaction from main en-gines/thrusters

  Yes

  No

  N/A

• Adapt to changes in thruster forces when alongside moving, self-propelled units/vessels

  Yes

  No

  N/A

• Recognise the importance of always being prepared for escaping to safe position

  Yes

  No

  N/A

Change of DP Watch

Handing over

• Prepare a hand-over checklist

  Yes

  No

  N/A

• Transfer vessel's status and DP-details when handing over the watch

  Yes

  No

  N/A

• Provide an update on the ongoing operation and planned operational activities

  Yes

  No

  N/A

Taking over

• Review a hand-over checklist

  Yes

  No

  N/A

• Verify vessels position and status

  Yes

  No

  N/A

• Interpret all necessary information of vessel and operation

  Yes

  No

  N/A

• Determine the DP-status and recent occurrences which may have an effect on the DP-operation during the watch

  Yes

  No

  N/A

• Check and confirm history log of DP-equipment settings

  Yes

  No

  N/A

• Take over DP-watch in a formal and clear manner

  Yes

  No

  N/A

Project Scope & Risk Assessment

• Review the scope of the planned DP operation

  Yes

  No

  N/A

• Explain the importance of Risk Assessment

  Yes

  No

  N/A

• Perform a risk assessment

  Yes

  No

  N/A

• Review other parties Risk Assessments for a planned DP operation

  Yes

  No

  N/A

• Explain the importance of Safe Job Analysis

  Yes

  No

  N/A

• Review other parties Safe Job Analysis reports

  Yes

  No

  N/A

• Explain the importance of toolbox-meetings

  Yes

  No

  N/A

• Conduct a toolbox-meeting

  Yes

  No

  N/A

Communication and Reporting

• Obtain information and clearance from e.g. installation, port control, VTS on issues important for the safe operation of the vessel under DP

  Yes

  No

  N/A

• Discuss working position with e.g. installation, port control, VTS

  Yes

  No

  N/A

• Communicate approach-plan with bridge team, work site control, ECR, third parties

  Yes

  No

  N/A

• Inform all involved crew, engine control room and other parties on board (if applicable) in sufficient time before arriving or departing the work site

  Yes

  No

  N/A

• Inform and update relevant parties of status of the vessel, changes in reference systems or the DP system and any developing emergency situations

  Yes

  No

  N/A

• Check that all parties on board complete relevant checklists

  Yes

  No

  N/A

• Comply with applicable reporting procedures and operational instructions in the operating area and as required by BridgingDocuments

  Yes

  No

  N/A

Weather Precautions

• Interpret weather forecast

  Yes

  No

  N/A

• Anticipate environmental conditions which may limit the use of DP

  Yes

  No

  N/A

• Assess if the environmental conditions are suitable for DP-operations

  Yes

  No

  N/A

DP Emergency Drills & Procedures

• Recognise the importance of the vessels FMEA document and the annual trials report for planning emergency drills

  Yes

  No

  N/A

• Demonstrate actions in case of unstable Position Reference System(s)

  Yes

  No

  N/A

• Demonstrate actions when losing Position Reference System(s)

  Yes

  No

  N/A

• Demonstrate actions if Position Reference System(s) suddenly change the position/range/bearing data significantly

  Yes

  No

  N/A

• Demonstrate actions in case of error in wind input

  Yes

  No

  N/A

• Demonstrate actions in case of a DP drive-off

  Yes

  No

  N/A

• Demonstrate actions in case of a DP drift-off

  Yes

  No

  N/A

• Demonstrate actions when losing all DP control functions

  Yes

  No

  N/A

Incident Reporting

• Use DP Incident Reporting Systems

  Yes

  No

  N/A

• Describe types of DP incidents that may be reported to DP Incident Reporting Systems

  Yes

  No

  N/A

• Review existing Incident Report Forms

  Yes

  No

  N/A

• Review incidents / accidents / failures of equipment / personnel performance

  Yes

  No

  N/A

DP Logs

• Recognise the importance of keeping detailed vessel log books documenting all aspects of DP Operations

  Yes

  No

  N/A

• Recognise the importance of personal DP Experience Log Books

  Yes

  No

  N/A

De-brief

• Evaluate the DP Operation, including DPO/DP System performance

  Yes

  No

  N/A

3. OPERATIONS

Work environment familiarisation

• Interpret information about the work location (e.g. water-depth, installations, subsea obstructions)

  Yes

  No

  N/A

• Analyse external forces which may reduce the position-keeping capability of the vessel (e.g. pipe tension, ice, tides, current, thrusters).

  Yes

  No

  N/A

• Verify available installed transponders and their location

  Yes

  No

  N/A

• Analyse the effects construction(s) and equipment such as cranes, flare booms etc. may have on the planned DP operation

  Yes

  No

  N/A

• Confirm heading and position of the object/structure (e.g. FPSO, installation) in case of station keeping alongside

  Yes

  No

  N/A

• Check whether the object/structure is fixed or floating (moving)

  Yes

  No

  N/A

• Assess where the vessel shall be positioned, considering weather or leeside and the operation to be carried out.

  Yes

  No

  N/A

• List precautions if vessel will be positioned on weather side of an object/installation

  Yes

  No

  N/A

• Identify escape routes for each phase of the operation, taking into account changing weather conditions, vessel movement, anchor chains/wires, operational issues, etc.

  Yes

  No

  N/A

Determining safe position

• Describe ¥Safe Position and the factors affecting it

  Yes

  No

  N/A

• Determine a ¥Safe Position

  Yes

  No

  N/A

• Determine a safe working heading

  Yes

  No

  N/A

• Decide on safe separation distances, taking into account combined movement when operating alongside an object

  Yes

  No

  N/A

• Determine the minimum distance required to carry out safe position location setup

  Yes

  No

  N/A

• Obey requirements with reference to safe distances as set by client (if applicable)

  Yes

  No

  N/A

• Anticipate the influence of environmental conditions on the vessel

  Yes

  No

  N/A

• Determine a position to stabilize the vessel under DP

  Yes

  No

  N/A

• Assess the movement of floating installations when determining a safe distance to carry out location setup checks

  Yes

  No

  N/A

• Determine if the working position is acceptable and in accordance with the standing order

  Yes

  No

  N/A

Vessel under manual control

• Describe advantages/disadvantages of various types of main propulsion, rudders and thrusters with regard to manual manoeu-vring

  Yes

  No

  N/A

• Discuss special precautions to be taken due to wind, current, wave height and swell during manual manoeuvring close to in-stallations or other obstructions

  Yes

  No

  N/A

• Stop the vessel at a pre-determined position

  Yes

  No

  N/A

• Explain the reason for stopping vessel completely before switching to DP control

  Yes

  No

  N/A

• Test manoeuvring stations

  Yes

  No

  N/A

• Demonstrate manual manoeuvring of the vessel

  Yes

  No

  N/A

• Demonstrate manual station-keeping of the vessel

  Yes

  No

  N/A

Entering DP control

• Determine optimum bus-tie breaker-setting and which engines to use during the operation

  Yes

  No

  N/A

• State the busbar-setting to be used in accordance with FMEA-report and the vessels DP class

  Yes

  No

  N/A

• Determine if both closed and open busbar-setting are approved for operating under the relevant DP-class

  Yes

  No

  N/A

• Test vessels manual manoeuvring capability during prevailing weather conditions at a safe position in manual, joystick and DP mode

  Yes

  No

  N/A

• Verify that levers and controls are aligned and levelled prior to switching from navigation bridge to DP bridge or vice versa

  Yes

  No

  N/A

• Switch from navigation bridge to DP bridge and vice versa without losing control of the vessel

  Yes

  No

  N/A

• Verify that levers and controls are aligned and levelled prior to switching from Manual mode to DP mode or vice versa

  Yes

  No

  N/A

• Transfer control between manual/joystick/DP operation and vice versa without losing position and control

  Yes

  No

  N/A

• Control the vessel under manual, joystick and DP, keeping the vessel in the desired position

  Yes

  No

  N/A

• Create a DP approach-plan

  Yes

  No

  N/A

• Verify if a DP approach-plan is in compliance with standing orders

  Yes

  No

  N/A

• Determine a safe approach angle to the destination (e.g. installation)

  Yes

  No

  N/A

• Explain when the DP computers should be reset

  Yes

  No

  N/A

• Demonstrate how to reset the DP computers

  Yes

  No

  N/A

• Demonstrate the use of the training functionality on the DP-system on board

  Yes

  No

  N/A

• Complete all tasks on the DP-checklists

  Yes

  No

  N/A

• Recognise no-go /stop criteria for DP operations

  Yes

  No

  N/A

Vessel under control of the DP System

• Explain the influence of a vessels speed when calibrating PRS and preference of a vessel being stationary

  Yes

  No

  N/A

• Set-up the number of position reference systems required in accordance with the DP class

  Yes

  No

  N/A

• Explain when to enable additional position reference systems after having switched from DP-joystick to DP

  Yes

  No

  N/A

• Stabilize the vessel under DP

  Yes

  No

  N/A

• Determine appropriate incremental steps for changing position, e.g. towards a structure.

  Yes

  No

  N/A

• Demonstrate moving towards a structure or object, thereby reducing speed in incremental steps, considering conditions and distance, avoiding overshooting

  Yes

  No

  N/A

• Determine if the quality of PRS-signals is sufficient for safe DP-operations under agreed DP-class

  Yes

  No

  N/A

• Check operational ability and accuracy of the DP-system

  Yes

  No

  N/A

• Carry out a drift-trial

  Yes

  No

  N/A

• Ensure vessel is on DP in accordance with FMEA

  Yes

  No

  N/A

• Confirm clients contractual DP requirements and conditions are met

  Yes

  No

  N/A

• Explain the various DP modes

  Yes

  No

  N/A

• Explain the expression Ðbuilding the modelÓ and its role in dynamic positioning

  Yes

  No

  N/A

• Explain the use and impact of the various gain settings (low, medium, high)

  Yes

  No

  N/A

• Explain the gain model function (e.g. quick model, fast learn) and when to use it

  Yes

  No

  N/A

• Explain how the DP-control system uses PRS inputs

  Yes

  No

  N/A

• Explain how the DP-model is weighed towards the PRS in use

  Yes

  No

  N/A

• Explain why ¥sea current or ¥sea force indicated on the DP may be remarkably high

  Yes

  No

  N/A

• Generate a DP Footprint Plot for the vessel

  Yes

  No

  N/A

• Use a DP Capability Plot to determine if DP operation is possible in prevailing conditions

  Yes

  No

  N/A

• Analyse consequences of moving out of position

  Yes

  No

  N/A

• Demonstrate the proper operation of the DP, including relevant special functions

  Yes

  No

  N/A

DP station-keeping near floating installations

• Explain the complications, specific challenges and difficulties when operating near floating objects as compared to fixed ob-jects

  Yes

  No

  N/A

• Demonstrate operating under DP near floating objects, using the specific DP-features and taking into account specific chal-lenges and difficulties

  Yes

  No

  N/A

• Interpret data with reference to mooring arrangements of a floating installation

  Yes

  No

  N/A

• Recognise external influences which may introduce errors or disrupt readings from sensors and PRS

  Yes

  No

  N/A

• Assess the risk of losing targets used by a laser-system, due to rapid movement of a floating installation or movement and position of cranes and deck equipment

  Yes

  No

  N/A

• Identify changes in the position and heading of the floating object by various means

  Yes

  No

  N/A

• Anticipate changes due to thruster-use by a self-propelled floating object

  Yes

  No

  N/A

• Determine when to make changes to the position of the vessel

  Yes

  No

  N/A

Monitoring, Alarms and Indicators of condition

• Monitor movement of the vessel and changes in the position and heading

  Yes

  No

  N/A

• Monitor position reference systems, sensors and signal quality

  Yes

  No

  N/A

• Monitor power output and thrust

  Yes

  No

  N/A

• Monitor thruster efficiency for station-keeping at different headings, drafts and trim, taking corrective action as required

  Yes

  No

  N/A

• Monitor if the DP operating parameters of continuous operating power are not exceeded

  Yes

  No

  N/A

• Monitor vessels position-keeping capability

  Yes

  No

  N/A

• Monitor movement of the object / installation (target - if applicable)

  Yes

  No

  N/A

• Monitor, by various means, changes in distance/heading between object and own vessel (if applicable)

  Yes

  No

  N/A

• Recognise changes in environmental conditions

  Yes

  No

  N/A

• Recognise increased importance of situational awareness when operating close to floating objects

  Yes

  No

  N/A

• Determine and set alarm and warning limits

  Yes

  No

  N/A

• Recognise alarms which may interfere with a proper operation of the DP-system and maintaining position

  Yes

  No

  N/A

• Discuss alarms with Engine Control Room

  Yes

  No

  N/A

• Evaluate the possible consequences of each alarm

  Yes

  No

  N/A

• Describe the DP status alert levels normally found on board a DP-vessel

  Yes

  No

  N/A

• Identify the procedures to follow for DP and non-DP alarms

  Yes

  No

  N/A

• Acknowledge alarms within time constraints

  Yes

  No

  N/A

• Explain ¥Consequence Analysis

  Yes

  No

  N/A

• Analyse the consequence analysis alarm

  Yes

  No

  N/A

• Decide to continue or to abort an operation after analysing alarms

  Yes

  No

  N/A

• Monitor visual indicators

  Yes

  No

  N/A

• Interpret visual indicators, to recognise conditions which may result in malfunction of DP

  Yes

  No

  N/A

Termination of DP Operation

Normal completion of operation

• Identify safe departure route and best vessel heading for departure

  Yes

  No

  N/A

• Recognise external dangers prior to departure

  Yes

  No

  N/A

• Retrieve Position Reference System Equipment from e.g. the installation or seabed (if applicable)

  Yes

  No

  N/A

• Demonstrate moving to a Ðsafe positionÓ in appropriate steps

  Yes

  No

  N/A

• Recover / retract deployed equipment, forward azimuth thruster, HPR, HiPAP (if applicable)

  Yes

  No

  N/A

Suspending operation

• Describe ship-based conditions which may result in aborting the operation

  Yes

  No

  N/A

• Describe external conditions which may result in aborting the operation

  Yes

  No

  N/A

• Re-stabilise the DP-system, using other available reference systems or by making adjustments

  Yes

  No

  N/A

• Recognise when environmental conditions become critical with reference to station keeping

  Yes

  No

  N/A

• Recognise the consequences of losing a reference system in relation to DP-class status

  Yes

  No

  N/A

• Describe the risks / challenges of the various control-modes

  Yes

  No

  N/A

• Determine the need for required changes in power and engines due to changing environmental conditions

  Yes

  No

  N/A

• Identify new escape routes based on changes in the mode, vessel alignment or environmental conditions

  Yes

  No

  N/A

• Decide to continue, reposition the vessel or suspend the operation, taking into account redundancy requirements

  Yes

  No

  N/A

• Determine the need to disconnect hoses or recover equipment

  Yes

  No

  N/A

• Consider changing to DP joystick or manual mode for manoeuvring when suspending an operation

  Yes

  No

  N/A

• Move to a safe position under full DP using incremental steps

  Yes

  No

  N/A

Emergency stop of operation

• Describe conditions on the vessel that may result in an emergency departure / disconnect / shutdown or similar action

  Yes

  No

  N/A

• Describe conditions on a nearby object / installation that may result in an emergency departure

  Yes

  No

  N/A

• Demonstrate the proper sequence of actions if experiencing an on board emergency which may influence DP-control duringDP-operations

  Yes

  No

  N/A

• Demonstrate the proper sequence of actions if colliding with an installation, nearby objects or vessels during DP-operations

  Yes

  No

  N/A

• Recognise limitations of vessel movement when having equipment or divers deployed

  Yes

  No

  N/A

• Explain why manual control should be selected after a full blackout, awaiting the power to be restored

  Yes

  No

  N/A

• Explain the course of action in case the ships integrity may be breached while under DP

  Yes

  No

  N/A

• Demonstrate the proper sequence of actions, including starting-up procedure, after a full blackout during DP-operations

  Yes

  No

  N/A

• Move the vessel to a safe position as fast and safe as possible

  Yes

  No

  N/A

4. SAFE MODE OF OPERATION

• If the 380V switchboard is in the closed configuration, what condition are you in?

  Yes

  No

  N/A

• If the Emergency Generator is set to automatic mode, what condition are you in?

  Yes

  No

  N/A

• Two new DPO arrive on board, they have not participated in a black out recovery drill, what condition are you in?

  Yes

  No

  N/A

• The Engine Room is not manned, what condition are you in?

  Yes

  No

  N/A

• The Gyros are showing a 1.5 degree difference, what condition are you in?

  Yes

  No

  N/A

• It has been 18months since the last Annual DP Trials, what condition are you in?

  Yes

  No

  N/A

• DGPS 1 is not operational, what condition are you in?

  Yes

  No

  N/A

• The Chief Engineer wants to conduct maintenance on the salt water cooling pump, what condition are you in?

  Yes

  No

  N/A

• The DP Consequence Analysis in enabled, what condition are you in?

  Yes

  No

  N/A

• The DP Position out of Limits warning alarm is not functioning, what condition are you in?

  Yes

  No

  N/A

5. ACTIVITY SPECIFIC OPERATING GUIDELINES

• The DP Alarms with a heading out of limits, the heading is 4 degrees, what condition are you in?

  Yes

  No

  N/A

• The DP Alarms with a positon out of limits, the offset is 6m, what condition are you in?

  Yes

  No

  N/A

• Both bow thrusters are running at 40%, what condition are you in?

  Yes

  No

  N/A

• The DP alarms with loss of Net A, what condition are you in?

  Yes

  No

  N/A

• The Fire Alarm is activated, what condition are you in?

  Yes

  No

  N/A

• The DP UPS alarms on the DP system, what condition are you in?

  Yes

  No

  N/A

• The DP alarms with, bow thurster 1 prediction error, what condition are you in?

  Yes

  No

  N/A

• All online DGs are running at 55% load, what condition are you in?

  Yes

  No

  N/A

• Work Station number 2 loses power and the screen goes blank, what condition are you in?

  Yes

  No

  N/A

• The DP Alarms with, LTW out of limits, what condition are you in?

  Yes

  No

  N/A

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