It will be the ultimate bungee jump - a terrifying 1,500 metre free fall from a helicopter, the equivalent of more than three times the height of Hong Kong's Two IFC.
A.J. Hackett, the New Zealand adventurer who introduced the extreme sport to millions, plans to launch himself out of a helicopter over Kuala Lumpur. After plunging for what will surely seem like a lifetime, the giant elastic cord attached to his feet will tighten and he will be catapulted 500 metres back into the air, eventually yo-yoing to a stop.
If successful, the stunt will double the existing record for the world's highest bungee jump.
Hackett admitted to feeling nervous about the record attempt. 'I do get a bit scared sometimes, but I'm still able to split the emotion from the logic,' he told ABC radio.
The stunt has been enabled by new bungee cord technology.
'Last December, we opened the world's highest [bungee] site in Macau,' said Hackett, visiting Australia to promote a new biography. 'There, we developed this new technology, which is a tapered bungee cord, fatter at the top than it is at the bottom. It means you can stretch them a long, long way.