As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB THROUGH 17,000 FEET HYD1 LOW QTY MESSAGE WAS DISPLAYED ON EICAS. UPON LANDING AT PDX AND SERVICING OF THE NR 1 HYDRAULIC SYSTEM A LEAK WAS IDENTIFIED AT THE RIGHT INBOARD SPOILER ACTUATOR TOP HOSE FITTING. REPLACEMENT OF O-RING PART NUMBER NAS1612-4 WAS ACCOMPLISHED PER EMB135 AMM 27-62-01. NO FURTHER LEAKS WERE NOTED.