As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TRANSIT CUSTOMER HAD RUDDER TRIM STICK IN FULL RT TRIM CONDITION AND COULD NOT TRIM LT. FOUND THAT IF TRIMMED TOO FAR TO RT. THE INDICATOR PIN WOULD JUMP OUT OF TRIM WHEEL TRACK AND COULD LOCK TRIM WHEEL. WE READJUSTED INDICATOR PIN AND CENTERED CONTROLS. THIS IS THE 2ND INCIDENT. (K)