As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ROUGH ENGINE AND SLIGHT LOSS OF POWER ON 3RD TAKE OFF OF THE DAY. NR 6 CYLINDER TEMPERATURE JUMPED CONSIDERABLY HIGHER THAN THE REST OF THE CYLINDERS BUT STILL IN THE "GREEN", MADE PLENTY OF POWER TO CLIMB AND RETURN TO THE AIRPORT. LEFT MAGNETO REPAIRED WITH MAGNETO GEAR REPLACEMENT KIT P/N AB-357586.