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Dropped object: first aid injury during ROV maintenance - DEV imca
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Dropped object: first aid injury during ROV maintenance

What happened?

A tooling tray guide arm fell from an ROV skid rail slot and hit an ROV technician’s torso. He was beneath the ROV disconnecting the securing pin. Two further technicians had pulled out the tooling tray to allow access for the injured person to clear himself from underneath. While doing so, the guide arm dropped from the ROV skid rail onto the ROV technician underneath. The estimated weight of the tooling tray was 68 Kg. He was taken to the local clinic as a precaution for a check-up, as the vessel was in port at the time of the incident.

Incident scene
Tooling tray guide arm that made contact with IP
Additional view of guide arm

What went wrong?

  • There was a requirement to remove the tooling tray before the next project;
  • The technician was required to go underneath to disconnect the securing pin from the hydraulic cylinder that connects the tooling tray to the ROV skid;
  • The skid was removed whilst he was underneath, and it fell onto him causing injury;
  • The risk assessment performed was not task specific.

What were the causes?

  • There was a lack of communication and poor risk perception demonstrated by the ROV technicians;
  • The mechanism was not designed to be easily or safely removed.

What lessons were learned?

  • There is a need for the attachment design for the clevis pin to be in a position that allows for access from the main deck in front of the ROV; removing the need for personnel to be underneath during removal;
  • There needs to be higher hazard/risk perception for routine tasks.

What actions were taken?

  • Improved the design (see image) eliminating the need for working underneath.

Members may wish to refer to:

Safety Event

Published: 10 September 2018
Download: IMCA SF 20/18

Relevant life-saving rules:
IMCA Safety Flashes
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