What was found
RT MAGNETO HAD EXCESSIVE RPM DROP DURING ENGINE RUN UP PRIOR TO TAKEOFF. RETURNED TO GATE. REPLACED MAGNETO, OPERATIONAL CHECK OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
RT MAGNETO HAD EXCESSIVE RPM DROP DURING ENGINE RUN UP PRIOR TO TAKEOFF. RETURNED TO GATE. REPLACED MAGNETO, OPERATIONAL CHECK OK.