@RAC/OPS: Before jumping down lilflyboy262's throat, have you considered he may be an Aussie living in Canada......
Irrespective of weather the operation was there before or after folks moved in to the area and began to have issues with noise etc etc, vandalizing an aircraft, not to mention any tampering that we, on the forum, cannot see from the photo, is no way to get a resolution to any perceived problems.
I see the Tyagarah airfield has a number to call for noise complaints, they should have taken their complaint there. Not damaged an aircraft that has the potential to now cost a local business thousands of dollars, cost the pilot/pilots and other staff money as they cannot operate. Has the potential to drive other owners and users of the airfield away as they now cannot be confident their aircraft will be safe and secure, which could again, potentially remove more money from the community, all because someone threw a tanty.