What was found
DURING TRANSIT CHECK, A HYDRAULIC LEAK WAS DETECTED IN THE MAIN LANDING GEAR PIT. MAINTENANCE PERSONNEL PERFORMED REVISION DETECTING HYDRAULIC LEAK AT BRAKE ACCUMULATOR LINE AT HYDRAULIC SYSTEM B IAW FIM 29-30 TASK 815 PROCEDURE; SO THE HYDRAULIC BRAKE ACCUMULATOR LINE P/N 272A1554-3, S/S, MANUFACTURER BOEING COMPANY WAS REPLACED IAW AMM 29-11-12 AND THE HYDRAULIC SYSTEM B OPERATIONAL TEST WAS PERFORMED IAW AMM 29-11-29, TESTED CORRECT.