As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PRE-FLIGHT INSPECTION, THE PILOT INSTRUCTOR DISCOVERED A POSSIBLE CRACK ON THE PROPELLER. CLOSER INSPECTION REVEALED AN APPROXIMATELY 4" CRACK ON NR 2 BLADE OF PROPELLER. THE CRACK IS DEVELOPED LONGITUDINAL ON BLADE FROM TIP TO HUB. NO IMPACT MARK OR OTHER DAMAGE TO PROPELLER OBSERVED. PROPELLER REMOVED FROM SERVICE.