As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INDUCTION AIR BOX SUPPORT MOUNTING BOLT (AN3-34 BOLT) IS WORN PREMATURELY BY SUPPORT BRACKET 15671-002. THE SAME BOLT ALSO IS WEARING AT CONTACT AREA FROM ALTERNATE AIR DOOR SUPPORT BEARING P/N 50200-101. THIS BOLT SUPPORTS THE INDUCTION AIR BOX ONTO THE CRANKCASE AND ACTS AS THE HINGE FOR THE ALTERNATE INDUCTION AIR DOOR. TO INSPECT THIS DAMAGE, THE AIR BOX HAS TO BE REMOVED AND DISASSEMBLE.