As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN)AFTER DEPARTURE AIRCRAFT EXPERIENCED LOSS OF "A" SYSTEM HYDRAULICS AND RETURNED TO BLOCKS. "A" SYSTEM HYDRAULIC LINE ABOVE THE L/H MAIN LANDING GEAR CHAFED THROUGH AND WEARING INTO THE 13TH STAGE RESERVOIR PRESSURE LINE. TEMPORARY REPAIR. LINE TO BE REPLACED.