As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHEN TAXIING OUT FOR DEPARTURE ON R06L, SMOKE BEGAN EMANATING FROM THE LT LG. ERS RESPONDED TO THE ACFT & LOCAL MX WAS DISPATCHED FOR INSPECTION. THE ACFT WAS THEN TOWED BACK TO THE GATE. RESOLUTION LT MLG WHEEL & BRAKES INSPECTED & OPERATIONAL TESTS CARRIED OUT IAW AMM 32-42-00-710-001 & 32-43-00-710-001, NO FAULTS FOUND. SUSPECT GLYCOL ON BRAKES.