From the link in the previous post -
Maintenance error
In its report, the Air Safety Investigation Branch concluded that: "the starboard wing of the aircraft separated from the aircraft in flight ... and the cockpit voice record showed that this occurred .... without any prior warning".
Aviation expert Geoffrey Thomas recalled the crash and the following investigation.
"It was a real shock for Western Australia," he said.
"Unfortunately, there was a maintenance error relating to some wing structure.
"I'll make it very simple . . .it was far more complicated than that..... there was a maintenance error made and the wing was weakened.
"Flying around the north west in summer [there is] a tremendous amount of turbulence.
"This plane was on descent into Port Hedland and the wing failed and that was unfortunately always going to be a catastrophic end."