As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE-N/A, NR 1 ENGINE MAIN ENGINE DRIVEN FUEL PUMP FILTER ASSY CAP UNSEATED WITH HELICOIL. A/C DECLARED FUEL LOSS IN INBD FLIGHT TO DTW. A/C HAD 12.4K LBS REMAINING. AIRPORT EMERGENCY EQUIPMENT WAS DISPATCHED. NR 1 ENGINE FIRE HANDLE WAS PULLED BY CREW TO S/O POSITION. ALSO, HELICOILS WERE STILL THREADED, FUEL FILTER CAP CRACKED. NR 1 ENGINE FUEL PUMP ASSY WILL REQUIRE REMOVAL AND REPLACEMENT.