As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RECEIVED EICAS FOR LEFT HYDRAULIC QTY. PERFORMED CHECKLIST. DETERMINED FLIGHT CONTROLS COULD BE AFFECTED. EMERGENCY DECLARED, LANDED WITHOUT INCIDENT. FOUND LEFT SYSTEM RUDDER PCA PRESSURE LINE LEAKING AT REDUCER. R & R O-RING IAW AMM 27-21-02-022-001. LEAK AND OPS CHECKED NORMAL.