As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT NOTED REDUCED FUEL FLOW AND SOME POWER LOSS ON CLIMB-OUT. RETURNED TO AIRPORT. INVESTIGATION FOUND .3750 INCH LONG BY .1250 INCH WIDE PIECE OF FERROUS MATERIAL LODGED IN FUEL METERING UNIT DOWNSTREAM OF INLET SCREEN RESTRICTING FUEL FLOW. OBJECT SENT TO TCM ANALYZATION LAB. SOURCE OF OBJECT DETERMINED TO HAVE ORIGINATED FROM CLEANING BATH POROUS MEDIA.