As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHX - EMERGENCY LANDING - FLT 0270 - EN ROUTE FROM IAH TO PHX RECEIVED CLASS 1 ECAM MESSAGE FOR GREEN HYDRAULIC LOW RESERVOIR THAT WAS FOLLOWED BY GREEN LOW PRESSURE, AS A PRECAUTION DECLARED EMERGENCY LANDING. MAINTENANCE REPLACED A RUPTURED PACKING ON PLUG, INSTALLED ON GREEN HYDRAULIC MANIFOLD NEAR PRESSURE TRANSDUCER (1065GN). LEAK CHECK WAS GOOD.