What was found
(AUS) NO4 ENGINE OIL FILTER BYPASS BUTTON EXTENDED - FURTHER INVESTIGATION FOUND HEAVY CONTAMINATION OF THE CHIP DETECTOR AND OIL DISCOLOURATION
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(AUS) NO4 ENGINE OIL FILTER BYPASS BUTTON EXTENDED - FURTHER INVESTIGATION FOUND HEAVY CONTAMINATION OF THE CHIP DETECTOR AND OIL DISCOLOURATION