As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PULLED FUEL TANKS DUE TO FUEL SMELL IN COCKPIT AFTER TANKS ARE TOPPED OFF. FOUND VENT HOSE CONNECTIONS VERY BADLY SPLIT DUE TO AGE OF HOSES. 1971 YEAR AIRCRAFT, FIRST REPLACEMENT. NEED AD ON THIS SUBJECT AS THE USE OF THESE AIRCRAFT IN THE FIELD INCREASES.