As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHILE PERFOMING A SCHEDULED REMOVAL / INSTALLATION OF THE FUEL NOZZLES, A SMALL PIECE OF METAL DEBRIS WAS FOUND WITHIN THE INTERNAL PASSAGE OF ONE OF THE FUEL MANIFOLD TRANSFER TUBES. THE DEBRIS WAS LODGED WITHIN THE TUBE AND HAD TO BE EXTRACTED BY PUSHING IT THROUGH WITH A PUNCH. THE NOZZLES DID NOT SHOW ANY ABNORMAL CONDITION. A NEW TRANSFER TUBE WAS INSTALLED.