As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FIRE DETECTION LIGHT ON P5 PANEL AND FAULT LIGHT ON F/E PANEL FLICKERS INTERMITTENTLY AND THEN CAME ON STEADY. NO NAC TEMP INDICATED. ISOLATED FAULT TO NR 1 "A" LOOP. PLACED NR 1 SWITCH TO "B" AND LIGHT EXTINGUISHED. T/S PER AMM 26-11-00. UNABLE TO DUPLICATE. SYSTEM OPS CKS OK.