As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A PREFLIGHT INSPECTION, FOUND THE PORTABLE HALON FIRE EXTINGUISHER LIGHT IN WEIGHT. WEIGHED THE EXTINGUISHER AND FOUND IT TO BE LESS THEN A POUND, SHOULD BE 3 + POUNDS. THIS WAS THE THIRD EXTINGUISHER THAT WAS FOUND WITH NO OR LITTLE CHARGE LEFT.