What was found
TOTAL LOSS OF A HYDRAULICS UPON GEAR RETRACTION, (LEVEL AND PRESSURE 0). A PUMPS RAN AMAX OP 3 MINS BEFORE SHUTOFF. REMOVED AND REPLACED LT GEAR LOCK SEQUENCE VALVE IAW MM 32-32-031-4. PERFORMED GEAR SWING IAW AMM 32-32-00-005. REMOVED BOTH NR1 AND NR 2 HYD PUMPS DUE TO HYD FLUID LOSS IAW AMM 29-11-033-4 AND INSTALLED BOTH PUMPS. REMOVED AND REPLACED BOTH A SYS PRESSURE FILTERS IAW MM 29-11-041. REMOVED AND REPLACED BOTH NR 1 AND NR 2 ENG CASE DRAIN FILTERS IAW AMM 29-11-041. PERFORMED LEAK CKS, NO LEAK NOTED AT THIS TIME.