Its a bit unfair to Jetstar to suggest that as they ‘appear’ to be the only ones with issues on the 717 fleet, that there is an issue within Jetstar.
Series of problems DO occur, even in aircraft fresh out of the factory. You only have to a look at the ADs (airworthiness directives) published, you’ll soon realise that all aircraft are far from perfect.
I don’t know the full situation over in Austrailia, except that it appears that the media have an issue with Jetstar. Any problem, no matter how minor, seems to get the attention of the media. Unfortunately the media are very good at turning a very benign incident into a full scale drama. It then gives an image to the public that Jetstar is somehow ‘unsafe’.
If the press reported on every single technical issue to affect airlines, they’d be no room for other news.