LPG Cargo Discharge Operation Checklist

This template covers the core ship-side discharge sequence for LPG cargo transfer on gas carriers. It includes pump lineup, booster and heater checks, vapour return setup, monitoring during discharge, and ship-shore figure reconciliation at the end. It is designed to capture the checklist items that must be verified in order, not to replace the vessel's cargo manual or terminal procedures.

Use it before cargo discharge starts, during the transfer at defined checkpoints, and again at completion for reconciliation and closeout. It is most useful when the operation has multiple handoffs, equipment dependencies, or terminal coordination requirements. If the discharge is routine but still safety-critical, this checklist helps keep the sequence consistent.

The cargo officer or another designated DRI should run the checklist, with input from the duty watch and terminal counterpart where required. Each item should have a clear owner so the person verifying the step is known. For critical steps, the verifier should be the person actually observing the equipment or reading the instrument, not someone relaying the result secondhand.

It is a starting point for LPG discharge operations, but it should be adapted to the cargo grade, vessel equipment, and terminal interface. Some terminals require additional vapour return controls, pressure limits, or communication checks. If your operation has cargo-specific hazards or local terminal rules, add those as checklist items before use.

Common failures include incorrect pump lineup, heater or booster settings not matching the cargo condition, vapour return not established when required, and poor reconciliation of ship-shore figures. Another frequent issue is treating the discharge as a single task instead of a sequence of independently verifiable checklist items. This template reduces that risk by forcing each step to be confirmed before the next one starts.

This is typically a per-operation checklist rather than a calendar recurring task. It should be created and completed for each discharge evolution, with any pre-arrival or pre-transfer preparation handled as separate supporting tasks if needed. If your vessel runs repeated discharges at the same terminal, you can reuse the template while keeping each job instance distinct.

Yes. You can add vessel-specific equipment checks, terminal communication steps, cargo temperature or pressure verification points, and local documentation requirements. Keep each checklist item atomic and verifiable so the crew can answer yes, no, or N/A without ambiguity. Avoid combining several actions into one line, because that makes it harder to spot where the operation actually failed.

An ad-hoc note or verbal briefing is easy to miss, especially when the team is busy and the transfer is already underway. This template creates a repeatable discharge record with clear ownership, verification steps, and a visible closeout trail. It is better suited for operations where blocking issues must be resolved before the next step can proceed.

Yes. It can sit alongside pre-transfer safety checks, permit-to-work records, cargo watch logs, and post-discharge reconciliation tasks. Many teams also link it to incident reporting or maintenance follow-up when a checklist item fails. That makes it easier to turn a discharge deviation into a tracked action instead of an informal note.