Australia news live: Qantas launches investigation into trans-Tasman mayday; superannuation crackdown on sex offenders

And welcome to Wednesday’s Guardian Australia live blog.

Qantas has launched an investigation into an engine issue on QF144 from Auckland to Sydney yesterday. Qantas engineers and aviation safety inspectors are set to examine the plane’s jet to determine why it failed, prompting a mayday call and emergency landing. The flight landed safely at Sydney airport at about 3.30pm and Qantas said all 145 passengers disembarked the aircraft normally.

Convicted child sexual abusers will…