Apr 232010
 

imageIf you have Hydralift davits for your fast rescue boat, FRC, you should check them, in particular the hydraulic ram eye at the cylinder end warns Marine Safety Forum. The safety following an incident during a man overboard, MOB, exercise. Fortunately no-one was hurt but the potential is evident.

An offshore installation called for a MOB Exercise. Crew boarded the starboard FRC and the launching operation commenced. Suddenly, for no apparent reason, the davit swung out violently damaging the sponson of the FRC. Hydraulic pipes and the stowing frame were also damaged. The FRC crew managed to disembark safely.

The type of failed davit is “Hydralift”, Model: HL6D-3200-MOB & SWL: 3200 Kg. Vessel was relieved and returned immediately to port for repairs and FRC  replacement.

image An investigation revealed failure of hydraulic ram eye at cylinder end. The complete ram was replaced on the starboard davit. Broken hydraulic hoses replaced and the system tested. On port davit the ram was removed, eyes were checked by dye penetration and found to be satisfactory.

ACTIONS
• Masters to ensure all preventative measures are taken during Launching / Recovery.

• A thorough inspection of davits to be carried out on a weekly basis in way of Hydraulic ram eyes and associated weld attachments especially in vessels with Hydralift davits.

• During Plan Maintenance days the davit cylinder will be removed for inspection and
maintenance. MPI’s and full checks will be done in every vessel with “Hydralift” davits.

• Davits and Hydraulic ram eyes will be visually inspected by the dedicated Superintendent during crew change days.

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