As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE HYDRAULIC PUMP LOW PRESSURE LIGHT ILLUMINATED AFTER 15 MINUTES. SYSTEM A HYDRAULIC QUANTITY DROPPED TO 18%. EMERGENCY DECLARED, DIVERTED, AIRCRAFT WAS GROUNDED. LANDING UNEVENTFUL. REMOVED AND REPLACED LEFT ENGINE HYDRAULIC PUMP IAW AMM 29-11-11. OPERATIONAL CHECK GOOD.