As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN FLT NR 1 HYD ISO VALVE, ROLL SPOILER INBOARD DYD, NR 1 RUD HYD CAUTION LIGHT ILLUMINATED FOLLOW BY LOSS OF NR 1 HYD QTY. REMOVED AND REPLACED NR 1 ENGINE DRIVEN HYDRAULIC PUMP. NO CONTAMINATION IN CASE DRAIN FILTER, OPS & LEAK CHECK GOOD.