As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON PUSHBACK, LOST ALL "C" HYD SYSTEM FLUID. VERY LARGE LEAK FROM LEFT WING OBSERVED (#3 SPOILER PCA PACKING). AIRCRAFT RETURNED TO BLOCKS (BTB). MAINTENANCE FOUND PACKING LEAKING ON SPOILER ACTUATOR. REMOVED & REPLACED PACKING IAW B767 AMM 27-61-02 & SERVICE "C" HYD IAW AMM 12-12-01. OPS CHECK GOOD & NO LEAK NOTED IAW AMM 29-11-00. AIRCRAFT RETURNED TO SERVICE.