As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENG HAS HAD 3 OCCURENCES OF FIRE WARNING POST CK ON FLIGHT. INDICATION COMES AND GOES. ALL PARAMETERS NORMAL INCLUDING FUEL FLOW. SAMC TEXT: CREW REPORTS MALFUNCTION IS IN LOOP 'A'. REF TSM 26-12-00-810-803, NR1 FDU TESTS OK. RESISTANCE VALUES OF DET'S CHK OK AT 1506 OHMS. RPLCD FDU 2WD1 REF MM 26-12-34.CHKS OK AND OP CHK LOOP & SQUIB OK. VISUAL CHK OF ENG NO DEFECTS NOTED. NO CURRENT FAULTS, NO AMIS HISTORY.