As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) RH WING RIB LOCATED IN ENGINE BAY ILLEGALLY MODIFIED - A HOLE HAD BEEN DRILLED THROUGH THE RIB STAINLESS STEEL FIRE BARRIER TO FACILITATE PUSHROD REMOVAL - THE HOLE WAS LEFT UNCOVERED ALLOWINGA POSSIBLE ENGINE FIRE TO PENETRATE TO THE FIBREGLASS LEADINGEDGE AREA CONTAINING FUEL PLUMBING - PERSONNEL/MAINTENANCE ERROR - UNAPPROVED MODIFICATION