As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PROPELLER WAS REPAIRED AND O/H IN MY SHOP. PROP HAD A2499-10 HIGH PITCH STOP SLEEVE INSTALLED BUT APPARENTLY ASSEMBLER DID NOT KNOW IT TAKES A 2499-9. WHEN ASSEMBLED TO GET BLADE ANGLES CORRECT, ALTERED -10 TO A -9 IAW PRINT A2499. TT ON PROP 120 HRS SINCE NEW. (K)