Teesside Magistrates’ Court heard how the worker was involved in the dismantling of the Brent Bravo.
The giant old The North Sea oil and gas rig caught national attention when it was towed to Seaton Carew yard in Able UK for demolition in June 2019.
The incident occurred the following month, July 31, when a module was removed.
When planning the removal, it was noted that there were three platforms on the basement deck of the structure that would need to be moved to allow the module to fall safely.
The health and safety (HSE) manager said the planning team failed to recognize that one of the platforms was not part of the main structure and was attached to the platform at using bolts that had corroded over time.
The HSE added: ‘This has affected the structural integrity of the platform and the methodology required to remove it safely.’
While cutting the bracing beams, the platform unexpectedly collapses, causing one of the employees to fall 15 meters.
An investigation into the incident revealed that Able UK failed to carry out a full structural assessment of the platform prior to demolition.
The HSE said this should have ensured the work could have been carried out safely.
Able UK, of Able House, Billingham Reach Industrial Estate, has admitted breaching Regulation 2(1) of the Health and Safety at Work Act 1974 and was fined £200,000 by the court of Middlesbrough with costs of £20,991.24.
After the hearing, HSE Inspector Richard Littlefair said: ‘When undertaking demolition work where structures are left in a pre-weakened state it is essential that those controlling the work take the appropriate action. to ensure the safety of all involved. the work.
“This includes ensuring that the stability of structures is considered before and during demolition work, as well as ensuring that controls are in place to mitigate other associated health and safety risks. , such as work at height.”
Able then said he had “undertaken a full review of our procedures”, adding: “We would like to apologize and continue to provide our support to the friend and colleague involved.”