What was found
(CAN)ENGINE WAS DIFFICULT TO START. ENGINE RUN REVEALED A MAG DROP OF 300 - 400 RPM. INSPECTION OF THE MAGNETO FOUND THE BEARING AT THE MAIN DRIVE END BADLY WORN.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN)ENGINE WAS DIFFICULT TO START. ENGINE RUN REVEALED A MAG DROP OF 300 - 400 RPM. INSPECTION OF THE MAGNETO FOUND THE BEARING AT THE MAIN DRIVE END BADLY WORN.