As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: LOW PRESSURE LIGHTS ILLUMINATED ON BOTH THE SYSTEM A ENGINE DRIVEN PUMP AND ELECTRIC PUMP DURING GEAR RETRACTION ON TAKEOFF. HYDRAULIC INDICATION SHOWED AS LOW AS 1400 PSI BEFORE RECOVERING, LOW PRESSURE LIGHTS WERE ILLUMINATED. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT DFW. (OPEN).