Safety Alert
<<< Back to Results

Printable version

Squeezed hand due to unintentional activation of winch

Country: NORWAY - Europe

Location: OFFSHORE

Incident Date: 10 November 2021   Time: ---

Type of Activity: Lifting, crane, rigging, deck operations

Cause: Caught in, under or between (excl. dropped objects)

Function: Production

What happened?:

During connection to shuttle tanker, a crane operator stood by the control panel to operate the mooring winch. At the level below was an auxiliary winch connected to a rope that was hanging over the railing. By mistake, the crane operator activated the lever for the auxiliary winch, and the IP at the level below saw the rope connected to the auxiliary winch move. He thought the rope was slipping over the railing and grabbed it. At the same time, the crane operator pulled further on the aux winch lever, which resulted in the IP's hand being pulled in and squeezed between the railing and the structure.

What Went Wrong?:

  • The design of the workplace made it challenging for the crane operator to keep an eye on the control panel while operating the winch.
  • The risk of unintentional operation of the winch was not identified in the governing documentation, and the IP's role in the work operation was not sufficiently described in the procedure.
  • The production technician lacked part of the required training and did not know that the auxiliary winch could be operated from the control panel.

Corrective Actions and Recommendations:

  • Closer follow-up of outstanding competence requirements.
  • Update procedures and SJA with risk of unintentional driving of winch.
  • Disconnect redundant levers.
  • Make improvements to workplace design.

Figure 1: Crane operator by the control panel

Figure 2: IP standing by railing on level below control panel with auxiliary winch in foreground

Safety Alert number: 336
IOGP Safety Alerts


Whilst every effort has been made to ensure the accuracy of the information contained in this publication, neither the IOGP nor any of its members past present or future warrants its accuracy or will, regardless of its or their negligence, assume liability for any foreseeable or unforeseeable use made thereof, which liability is hereby excluded. Consequently, such use is at the recipient's own risk on the basis that any use by the recipient constitutes agreement to the terms of this disclaimer. The recipient is obliged to inform any subsequent recipient of such terms.
This document may provide guidance supplemental to the requirements of local legislation. Nothing herein, however, is intended to replace, amend, supersede or otherwise depart from such requirements. In the event of any conflict or contradiction between the provisions of this document and local legislation, applicable laws shall prevail.

City Tower, 40 Basinghall Street
Level 14
London, London EC2V 5DE
United Kingdom