As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED. EMERGENCY DECLARED. DFW-EZE FLIGHT RETURNED TO DFW ACCOUNT LEFT ENGINE BLEED WENT TO OFF FOLLOWED BY ISLN CLOSED THEN LEFT PACK OFF. OVERWEIGHT LANDING UNEVENTFUL. REMOVED AND REPLACED LEFT HIGH PRESSURE SHUTOFF VALVE PER AMM 36-11-07. LEAK AND OPERATIONAL CHECK GOOD.