As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) FUEL MANIFOLD DETERMINED TO EXHIBIT CARBON BLOCKAGE OF INTERNAL PASSAGES DISRUPTING FUEL FLOW TO INTEGRAL FUEL NOZZLES AND LIMITING MAXIMUM AVAILABLE FLOW. THIS RESULTS IN PRESSURE RELIEF VALVE ACTIVATION AND APR HEADROOM FAULT INDICATIONS. MFG IS INVESTIGATING AND WILL IN FORM OF CORRECTIVE ACTION THROUGH SCHEDULED SERVICE DIFFICULTY REVIEWS WITH TCCA.