Drydock preparation: define the scope before the window closes

Separate the work packages

A repair list should distinguish inspection, disassembly, machining, component replacement, fabrication and testing. These stages can have different resource requirements and dependencies.

Identify the missing inputs

Before mobilisation, collect maker references, drawings, measurements, condition findings and the required spares. Clarify crane access, workshop requirements, onboard utilities and the responsibilities for each stage of the work.

Define completion

Agree which checks, photographs, service reports and relevant certificates are needed. The scope should explain what constitutes completion so that execution and documentation are working toward the same outcome.

MSACHKL perspective

Late additions cannot always be absorbed into an existing window. Prioritise critical items, identify tasks that depend on other work and review the material lead time before committing to the sequence. A planned repair is easier to coordinate when technical requirements and commercial approval arrive together.

Use maintenance planning as a management process

IMO describes the ISM Code as an international standard for safe ship management and operation and pollution prevention. A drydock work list should therefore sit within the vessel’s wider management process, with clearly assigned responsibilities and traceable decisions.

Our planning interpretation is to treat each work package as a defined requirement. Identify who confirms the scope, who supplies materials, who provides access and who accepts completion. Where a task depends on another activity, record that dependency before fixing the sequence.

Separate confirmed work from provisional findings

Some tasks can be specified before arrival. Others depend on inspection or dismantling. Distinguish these categories in the commercial scope so a provisional repair is not mistaken for a fixed outcome. State the information that will determine whether extra material or workshop work is required.

For example, an overhaul enquiry may identify the equipment and reported symptoms while leaving internal condition unknown. The initial scope can describe inspection and assessment, with subsequent repair work subject to the findings and approval. This makes the commercial decision clearer without pretending the equipment has already been examined.

Prepare for completion and the return to operation

Define the agreed checks, service reporting, photographs and relevant documents alongside the work scope. If different providers are involved, identify how their records will be brought together for review. A task that is physically complete but poorly documented can remain difficult to close administratively.

Before mobilising, review access, utilities, spares, lifting arrangements and attendance dates. During the project, keep changes linked to their technical reason and approval. On completion, compare the delivered scope with the original requirement and record any remaining action.