As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT HYDRAULIC QUANITY FELL TO 6 QUARTS IN FLIGHT AT 33000 FT. TURNED OFF HYD PUMP PER ABNORMAL PROCEDURES CHECKLIST. RETURNED TO NORMAL LEVEL AFTER 10 MIN. FOUND GOUND SPOILER VALVE LINE LEAKING. INSTALLED APPROVED TEMP LINE PER M/M GOOD FOR 350 HRS FROM FLIGHT 1172/10.