An engineer employed by Dreamworld to conduct a safety audit on rides had not made it to Thunder River Rapids

AN ENGINEER employed to conduct a maintenance audit on Dreamworld rides had not reached the one that would eventually claim four lives, an inquest has been told

Major event - Dreamworld victims Kate Goodchild Luke Dorsett Roozi Araghi and Cindy Low. Picture: Supplied

AN ENGINEER employed to conduct a maintenance audit on all rides at Dreamworld had not reached the Thunder River Rapids Ride, the inquest into four deaths on the ride has heard.

Dreamworld junior engineer Gen Cruz told the inquest he was employed in 2014 to conduct a maintenance audit of the park’s rides.

“The Rapid Ride is a class two ride ... and I had been instructed to prioritise the big nine rides and I had done half of those and (I was) to prioritise the rides with higher classification number. TRRR is close to the bottom,” Mr Cruz said.

The inquest is examining what happened just before 2pm on October 25, 2016 after a pump stopped working on the Thunder River Rapids Ride, causing water levels to drop and a raft to become stuck on the conveyor belt.

Flowers at a memorial outside Dreamworld after four people were killed in an accident on the Thunder River Rapids ride on 25 October, 2016. Picture: Getty Images

That raft was hit by another carrying Luke Dorsett, his sister Kate Goodchild, her daughter Ebony, 12, Roozbeh Araghi, Cindy Low and her son, Kieran, 10.

The four adults were killed. The children escaped uninjured.

The inquest heard in the audit Mr Cruz was getting together documentation including manuals and service bulletins from rides at Dreamworld, some of which were missing.

Barrister Matthew Hickey, acting for Cindy Low’s family, asked: “Those documents are necessary to be obtained?”

“Yes,” Mr Cruz replied.

Mr Hickey asked again: “They are necessary because without them one can’t be sure they are maintaining those safely?”

“Yes,” Mr Cruz replied.

The inquest heard Mr Cruz’s employment was the first time Dreamworld had the opportunity to conduct maintenance audits on the ride.

An audit of a single ride could take two months.