As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING MAINTENANCE, NR 1 SYSTEM'S HYDRAULIC WAS PRESSURIZED AND A CLOUD OF HYDRAULIC FLUID MIST WAS NOTED COMING FROM THE LEFT OUTBOARD WING REAR SPAR AREA. THE LEFT INBOARD ROLL SPOILER LIFT DUMP PRESSURE LINE WAS FOUND LEAKING.