As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED THAT WHEN THE STARTER SELECT SWITCH WAS SELECTED TO THE LT ENG, THE ENG BEGAN TO START WITHOUT PUSHING THE START BUTTON. TROUBLESHOOTING IDENTIFIED THE LT ENG START PUSH BUTTON SWITCH AS DEFECTIVE & A NEW SWITCH WAS INSTALLED. FUNCTIONAL CHECKS WERE SATISFACTORY.