The head of Tasmania's state-owned ferry operator has blamed "human error" which has resulted in modifications to the two new Spirit of Tasmania ships and their berth being needed.

Last month, TT-Line revealed the "project recovery team", which was introduced following major delays and cost blowouts to the vessel replacement project, had identified an issue with the new fenders at the berth, caused by the "wrong specifications" being acted on.

The fenders sit between the vessel and the port to absorb kinetic energy.

TT-Line has now identified that the fenders were built "much stronger than required", following a change to the specifications.

"It was clearly human error by TT-Line in 2023,"

TT-Line chair Ken Kanofski said.

Spirit of Tasmania IV unable to berth at Geelong

The ABC unde

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