As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOSS OF NR 2 BRAKE ROD PIN ALLOWED BRAKE ROD TO ROTATE INTO A POSITION THAT PREVENTED LEFT MAIN LANDING GEAR FULL RETRACTION INTO WHEEL WELL. ON LANDING, BRAKE ROTATED WITH WHEEL ASSEMBLY CAUSING FIELD REPAIRABLE DAMAGE TO LEFT MAIN LANDING GEAR. BRAKE ROD PIN LOSS WAS CAUSED BY INCORRECT INSTALLATION OF PIN ASSEMBLY FOR INSTALLED BRAKE CONFIGURATION. AIRCRAFT GROUNDED.