As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE RUBBER (LORD) MOUNTS USED TO ATTACH THE ENGINE COWLING TO THE AIRFRAME ARE FAILING AT A RATE OF ABOUT 3 MOUNTS EVERY 100 HOURS. MAINTAIN A FLEET OF THESE MODEL AIRCRAFT USED IN A FLIGHT SCHOOL ENVIRONMENT AND SEE THIS REGULARLY ON THESE AIRCRAFT. IF NOT CORRECTED THIS COULD CAUSE A LOSS OF THE ENGINE COWLING IN FLIGHT. (K)