As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AIRCRAFT HAD BEEN HARD TO START. UPON INVESTIGATION THE STARTER BENDIX DRIVE GEAR FOUND TO HAVE A CHIPPED TOOTH. NO PROBLEMS NOTED WITH THE INSTALLATION OF THE STARTER.THERE IS NO SHIMMING PROCEDURE, OR ANY OTHER KIND OF ADJUSTMENT WITH THIS INSTALLATION.