As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON GEAR RETRACTION LOST ALL SYSTEM QUANTITY AND PRESSURE. FOLLOWED COM RED BORDER AND AMPLIFIED 2.29.2 HYDRAULIC SYSTEM LOSS AND 2.28.4 FUEL DUMPING CHECKLIST RETURNED FOR LANDING IN ISO AT 155,000 LBS. T/S FOUND MLG ACT RETURN LINE BLOWN REMOVED AND INSTALLED TEMP FLEX LINE IAW B727 MM 32-32-09. OPS CHECK GOOD. REMOVED AND REPLACED NR 1 AND NR 2 HYD PUMP AND FILTERS IAW 29-11-54.