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: HYDRAULIC SYSTEM-A QUANTITY DECREASED FROM 93% TO 77% WITHIN 5 MINUTES AFTER TAKEOFF. CONTINUED LOSS AT 1% EVERY TEN MINUTES THERE AFTER; AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT DFW. **SUPPLEMENTAL REPORT WILL BE SUBMITTED**(OPEN).