Unsecured Door - Potential Dropped Object

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Average: 4.3 (6 votes)
Alert ID: 
Description of Process: 

A flat pack spooler unit was being lifted from the boat to be landed on to the main platform deck

Description of Incident: 

During a lift, the storage door had opened which revealed a small tool box inside which was not secured.


Investigation Findings / Learning:

  • The Antiluce drop lock had no means of secondary retention during transportation

  • Inconsistent approach to implement best practice across all workshops

  • No prior industry alert sourced for similar occurrence


Good Practice Guidance: 

Corrective Action:

  • Implemented secondary retention solution
  • Raise awareness at morning briefings and safety meetings
  • Ensure final release inspections cover all secondary retention areas on equipment


Recommended Retention Method:


  • Recommended method of secondary retention is a tie wrap
  • Recommended size of the tie wrap is between 4.7mm and 13.2mm for drop locks
  • Secondary retention must be in place on all units with drop locks for both outward and inward transportation


Unsuitable Retention Methods:


  • Do not use linch pins, R-clips, spring / roll / nappy pins or any other type of pin device as a means of secondary retaining for lifting equipment or securing at height as they can spring open or be knocked out

Related resources:

Step Change:

Design and Handling of Cargo Baskets https://www.stepchangeinsafety.net/safety-resources/publications/design-and-handling-cargo-baskets

Lifting and Mechanical Handling Guidelines https://www.stepchangeinsafety.net/news-events/news/new-lifting-and-mechanical-handling-guidelines

Step Change in Safety Lifting Forum – for more info contact support@stepchangeinsafety.net


Best Practice for the Safe Packing and Handling of Cargo to and from Offshore Locations https://oilandgasuk.co.uk/wp-content/uploads/2015/05/HS072.pdf



Causes and consequences of incident or accident: 
Moving, flying or falling object
Handling, lifting or carrying