As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTS THE ENGINE COULD NOT BE LEANED AT ALTITUDE AND THAT IT WOULD NOT IDLE OR CONTINUE RUNNING AT SPEEDS BELOW 800 RPM. FOUND THE FLEXIBLE FUEL LINE LEAKING THROUGH THE BRAIDED EXTERIOR ALONG ITS ENTIRE LENGTH. THIS LINE SUPPLIES FUEL FROM THE FUEL INJECTOR TO THE FUEL FLOW TRANSMITTER HARD LINE. IT IS ROUTED BETWEEN NR 3 AND NR 5 CYLINDERS.