Our worst maritime environmental disaster was an accident waiting to happen, says the author of the first book on the Rena catastrophe.
An experienced senior salvage master quoted in John Julian's book Black Tide, released today, also suggests authorities may have missed a chance to refloat the container ship in the days after it hit the Astrolabe Reef near Tauranga six months ago - a claim dismissed by those involved in the response.
Captain Ian Tew, a former senior salvage master involved in 65 operations around the world, said there was a "real chance" the Rena could have been removed from the reef using tugs, its main engine and heavy swells that pushed the ship onto a sharp list in stormy weather.
"The heavy swell might well have reduced the ground reaction to nothing and the rock she was impaled on might have broken off."
He argued that even if the attempt had failed, it would have been worth the try.