Maritime New Zealand is warning boaties to check their steering systems following a fatal jet boat crash in February.
Christchurch man Cameron Moore, 46, died while racing down the Clutha River during the Otago Rivers Jet Boat Race near Wanaka on February 24.
His boat left the water along a straight section of the river, skidding then crashing into the river bank.
Maritime NZ confirmed the cause of the crash was steering failure after a wire broke and a shackle fell off.
Its compliance systems delivery deputy director Pelin Fantham said all jet boat owners should ensure their boats are safe.
"The steering set-up in all jet boats should be checked as soon as possible. If you are unsure about what to look for, talk to the supplier or manufacturer of your jet boat," she said.
"You need to physically check the steering system of your jet boat. If it uses D-shackles and locking wire check that the shackles are individually wire locked. Check the condition of the shackles. If there are nicks or tooling damage, consider replacing them."