What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: ON TAKEOFF WITH GEAR RETRACTION, MASTER CAUTION HYDRAULIC ILLUMINATED. SYSTEM-A ENGINE 1 LOW PRESSURE ILLUMINATED. SYSTEM-A ELECTRIC NUMBER 2 LOW PRESSURE ILLUMINATED. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT IAD. PERFORMED FIM TASK 29-30-00-810-812. REMOVE AND REPLACED PRESSURE HOSE (AALA202507316372), SUPPLY HOSE (AALA202507310712), UPPER (AALA202507313384) AND LOWER (AALA202507316684) HYDRAULIC CASE RETURN HOSES. PER AMM 29-11-11, AMM 29-11-61, AMM 20-10-52 AND AMM 20-10-52 ON ENGINE NUMBER 1. LEAK CHECK GOOD. ACCOMPLISHED HYDRAULIC SYSTEM-A AND B-SYSTEM TEST, PER AMM 29-11-00. ALL TEST PASSED.