As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ALUMINUM NIPPLE AN816-6D SHEARED IN FUEL FLOW TRANSDUCER INLET AFTER FOUR YEARS. THIS CAUSED LOSS OF ENGINE POWER AND FORCED OFF AIRPORT LANDING. INSTALLATION WAS CONSISTENT WITH APPROVED DATA. RECOMMEND ONLY STEEL FITTINGS BE USED IN THESE APPLICATIONS.