As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONTROL WHEEL BROKE ON LT TOP .7500 INCH FROM CORNER ON LIFT OFF VX ON PILOTS SIDE. THIS IS THE OLD SQUARE CONTOL WHEEL AND IS ORIGINAL PART, 40 YEARS OLD. BROKEN CONTROL WHEEL SHATTERED, PUSH TO TALK SWITCH FASTENED TO CONTROL AT SAME LOCATION. CONTROL WHEEL IS WHITE PLASTIC WITH BLACK PLASTIC COATING OVER ALL SURFACES.