What was found
NR 1 HYD LEAK IN AIR. UNEVENTFUL LANDING. HYD FLUID NOTICED ON BOTTOM OF AFT FUSELAGE. COMPLIED WITH CAMP CARD 20260831-23. INSPECTED AREAS WITH HYD FLUID & FOLLOWED TO AFT EQUIP BAY. LARGEST CONCENTRATION OF FLUID AROUND LT HYD FILTER MANIFOLD. TORQUED HYD LINES IN AREA IAW SPM 20-30-00-400-801. CLEANED IAW SPM 51–25–00–110–801 & SERVICED HYD SYS NR 1 IAW AMM 12-12-00-611-801. PRESSURIZED SYS NR 1 IAW AMM 29-10-00-862-801. NO LEAK NOTED. PRESSURIZED EDP IAW AMM 29-12-01-710-801. FOUND LEAK AT LT FIREWALL SHUTOFF VALVE. REPLACED LT SHUTOFF VALVE IAW AMM 29-12-33-000-801, & 29-12-33-400-801. OPS TESTED GOOD, NARROWED DOWN LEAK FROM CRACK ON LT PRESS LINE AFT OF SHUTOFF VALVE. REPLACED HYD LINE IAW SPM 20-30-00-910-807, & SPM 20-30-00-400-801. NO LEAKS NOTED. REINSTALLED ORIGINAL SHUTOFF VALVE IAW AMM 29-12-33-000-801, & 29-12-33-400-801. OPS & LEAK TEST GOOD. HYD SYS NR 1 SERVICED IAW AMM 12-12-00-611-801.