As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SPOILERON FAULT ON TAXI OUT, RETURNED TO GATE. REMOVED AND REPLACED NR 1 SYSTEM LEFT HYDRAULIC INBOARD FLIGHT SPOILERON PCU IAW MM 27-62-01. REPLACED LOW PRESSURE SWITCH FOR HYDRAULIC SYSTEM 3B. P/N 211C223-461A. OPERATIONAL CHECK GOOD.