As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING TAXI, THE LT BRAKE CALIPER WOULD NOT RELEASE CAUSING DRAGGING ON THE BRAKES. AFTER SOME INVESTIGATION, THE LH BRAKE LINE TO THE CALIPER WAS FOUND TO HAVE INTERNALLY CORRODED AND COLLAPSED THE BRAKE LINE. THIS WAS CAUSING A RESTRICTION IN THE LT BRAKE SYSTEM. THE BRAKE LINE WAS REPLACED AND NO FURTHER ISSUES.