As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PRE FLIGHTING AIRCRAFT WITH APU RUNNING AND PACKS ON, RECEIVED WHEEL WELL FIRE WARNING. AIRCRAFT WAS EVACUATED AND FIRE TRUCKS CALLED. NO APU AIR DUCT LEAKS NOTED REF WDM 26-17-11, FOUND RIGHT WHEEL WELL DETECTOR ELEM T205 WITH LOW RESISTANCE FROM THE CENTER CONDUCTOR TO GROUND (6.5K OHM). REPLACED T205 REF AMM 26-17-01-4. OPS CHECKED GOOD.