As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE ROLL PIN ATTACHING THE CARBURETOR MIXTURE CONTROL ARM TO THE ASSY WAS ABLE TO BACK OUT FAR ENOUGH TO MAKE CONTACT WITH THE MIXTURE STOP. NO SECONDARY SAFETY, LOCKWIRE WAS FOUND RETAINING THIS ROLL PIN ON THIS ASSEMBLY OR ANY REMAINING UNITS IN STOCK.