What was found
27.07.2021 15:40 HYDRAULIC LEAK IN THE RIGHT MAIN LANDING GEAR PIT. DURING TRANSIT CHECK, A HYDRAULIC LEAK WAS DETECTED IN THE RIGHT MAIN LANDING GEAR PIT. MAINTENANCE PERSONNEL PERFORMED REVISION DETECTING HYDRAULIC LEAK AT FLAP PRIORITY VALVE; SO THE FLAP PRIORITY VALVE PACKING’S P/N NAS1612-12, S/S, TSN 44073, CSN 21618, MANUFACTURER BOEING COMPANY INC WERE REPLACED IAW AMM 27-51-04, TESTED CORRECT.