As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THIS AIRCRAFT INCORPORATES PRATT & WHITNEY PT6-135A ENGINES INSTALLED IAW STC SA136150. INSPECTION REVEALED SEVERE CHAFING OF THE SECONDARY FUEL PRESSURE TUBE ASSEMBLIES OF BOTH ENGINES APPROXIMATEY 2.50 INCHES AFT OF THE TUBE FORWARD ENDS DUE TO CONTACT WITH THE ALTERNATE AIR ACTUATOR BELLCRANK FULCRUM SHAFTS WHICH ARE MOUNTED ON THE LOWER COWLING HALVES.