As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHEN INSTALLED THE STARTER TEETH WOULD NOT LINE UP. UPON FURTHER INSPECTION IT WAS FOUND THAT THE STARTER APPEARED TO HAVE THE WRONG GEAR INSTALLED FOR THE PART NUMBER. WHEN ANOTHER EXACTLY THE SAME TYPE OF STARTER WAS INSTALLED THE AIRCRAFT STARTED WITHOUT ANY PROBLEMS AND CHECKED OUT NORMAL. (TC# 20090915007)