As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENG FIRE DETECTOR WARNING LIGHT ILLUMINATED DURING CRUISE FLIGHT. AC DIVERTED FROM FLIGHT PATH AND LANDED ON THE SHOULDER OF THE ROAD. IT WAS DETERMINED THAT THERE WAS NOT A FIRE. MAINT WAS DISPATCHED TO THE LZ. IT WAS DETERMINED THAT CORROSION WAS EVIDENT BETWEEN THE WIRE TERMINAL AND THE FIRE DETECTOR. THE TERMINAL AND THE FIRE DETECTOR WERE CLEANED, AND AN OPERATIONAL CHECK OF THE FIRE DETECTION SYS WAS SATISFACTORY. (K)