Heerema’s Aegir heavy lifter in drop fall accident

Heerema Marine Contractors’ heavy lift vessel Aegir experienced a drop fall incident last week off the coast of Taiwan, where it was working on an offshore wind project.

Netherlands-based Heerema said that “there were no injuries as a result of the incident, and no environmental impact has occurred. The piling frame and pin pile have only suffered minimal damage”, adding that “work had just started on this project, and currently, foundation installation has been temporarily paused pending investigation. The exact cause of the incident is yet unknown and will be the subject of a thorough investigation”.

The incident involving the 2013-built crane vessel happened during the afternoon of Monday June 15th.

Heerema said that the vessel was pre-piling jacket foundation piles when the incident happened. The hammer was retrieved from the pile and was back on Aegir’s deck.

Drop falls can happen when a pile suddenly drops due to unexpected soil conditions during the pile driving operations, although there are no details yet as to the cause of this incident.

Heerema signed a contract last year with Jan de Nul to install 21 jacket foundations (4 legged) for the Changhua project, 8km off the coast of Changhua county, using heavy lift vessel Aegir.

The Changhua Windfarm Phase 1 project is a project of the Taiwan Power Company (TPC) and executed by a consortium of Jan de Nul and Hitachi.