As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PREFLIGHT INSPECTION, LEFT PROP FAILS TO TURN FREELY DUE TO APPARENT INTERNAL POWER SECTION RESTRICTION. LOOSE PT BAFFLE (AIR SEAL) SUSPECTED PROBLEM. REPLACED POWER SECTION MODULE WITH AIRWORTHY MODULE IAW PW AND RAYTHEON MM. LEAK CHECK AND OPERATIONAL CHECK SATISFACTORY. (M)