A walkaround audit performed aboard a vessel revealed two vital security deficiencies within the engine room, as reported by the Worldwide Marine Contractors Affiliation (IMCA). The audit recognized improper software of Lock Out/Tag Out (LOTO) procedures and unauthorized modifications to electrical programs, each of which pose important dangers to personnel and gear.
What Occurred
Throughout an onboard engine room audit, two unsafe practices had been recognized. Electrical gear related to the principle switchboard was switched off for repairs to the hydraulic pipeline of the anchor dealing with system, however no LOTO was utilized.
Though the emergency cease was activated from the bridge, {the electrical} isolation level was not secured with a LOTO system. A hydraulic valve was bodily closed and tagged out, however the mechanical isolation was incomplete because the valve lockout system was not utilized.
Moreover, the audit recognized unauthorized and undocumented disconnections and bypassing of vital electrical programs. These modifications weren’t logged, and correct reinstatement procedures had not been adopted after doubtless momentary modifications made throughout Dynamic Positioning (DP) trials.
Why It Occurred
In each LOTO-related circumstances, the accountable personnel didn’t comply with the complete isolation procedures. A key contributing issue was the unavailability of appropriate LOTO gadgets for {the electrical} isolation factors, regardless of prior directions to make sure ample onboard stock. The management of labor and isolation course of was not successfully carried out or monitored. Within the case of unauthorized electrical disconnections, causes included:
Lack of documentation for momentary modifications.
Failure to assign accountability for system reinstatement.
Poor communication between shifts and groups.
Absence of verification checks post-DP trials.
Actions Taken
No particular corrective actions had been detailed within the report. Nevertheless, reference was made to prior fleet-wide directions about making certain the provision of LOTO gadgets onboard, indicating a procedural hole in compliance or enforcement.
Classes Discovered
Merely switching off gear or closing a valve doesn’t guarantee full isolation. With out correct LOTO, programs could be unintentionally reactivated as a consequence of error or malfunction.
LOTO procedures should be utilized in each upkeep or restore exercise involving hazardous power, no matter perceived threat.
Recurrently confirm the provision and suitability of LOTO gadgets onboard for all required isolation factors.
Momentary system modifications, particularly throughout DP trials, should be formally documented, authorised, and reinstated promptly after testing.
Reinforce clear communication throughout handovers, making certain all personnel are briefed on system modifications and restoration tasks.
Conduct post-maintenance checks to verify full system reinstatement earlier than resuming operations.
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Supply: IMCA
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