23. Downtime Is the non productive time due to an unplanned stop of
the dredger, decreasing the production, increasing the total operating
cost and reducing the return on investment (ROI).
One of the KPI’s of both effective and efficient operation and
maintenance is the downtime. Although downtime is unavoidable; it can
be reduced to a minimum by analyzing and predicting of the possibilities
of downtime Ahmed Metwally, ahom1228@yahoo.com
24. Main Elements of Downtime
• Operation malfunction.
• Equipment malfunction.
• Onboard inventory management.
Ahmed Metwally, ahom1228@yahoo.com
25. Operation Malfunction
• Unauthorized operation.
• Lack of training and/or experience.
• Skipping preoperational checks.
• Failure to follow safety instructions.
Ahmed Metwally, ahom1228@yahoo.com
26. Equipment Malfunction
• Unfollow of operation manuals.
• Use of non standard consumables.
• Use of non genuine spares.
• Unplanned maintenance.
• Reliability of maintenance.
Ahmed Metwally, ahom1228@yahoo.com
27. Onboard inventory management
• Inventory control.
• Availability of Emergency spares.
• Information and accessibility.
Ahmed Metwally, ahom1228@yahoo.com
28. Documenting the Down Time
Operation
down time 1
hr.
• 01/06/015
Maintenance
down time 2
hrs.
• 05/06/015
Inventory
down time
30 min.
• 08/06/015
Crew
downtime 2
hrs.
• 09/06/015
Information
down time 1
hr.
• 10/06/015
Ahmed Metwally, ahom1228@yahoo.com
