As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) OXYGEN SYSTEM FOUND INSTALLED IN AIRCRAFT WITH NO INSTALLATION CERTIFICATION OR WEIGHT/BALANCE DATA IN THE AIRCRAFT LOG BOOK. THE OXYGEN SYSTEM IS NOT APPROVED FOR AIRCRAFT USE AND THE INSTALLATION DOES NOT COMPLY WITH FAR REQUIREMENTS. UNAPPROVED PART.