What was found
LOST YELLOW HYD SYS QUANTITY AND PRESSURE. PUMP DID NOT CAVITATE. SERVICED YELLOW HYD SYS REF AMM NR12-12-29-00-0. RAN NR 2 ENG IAW JRH CHAPTER 5 AFTER SHUTDOWN FOUND LEAK AT LOWER AFT PYLON DRAIN MAST. OPENED INBD/OTBD PYLON ACCESS PANELS. MOTORED ENG AND FOUND LEAK AT RT TUBE MANIFOLD. R & R O-RING REF AMM 29-12-69-04-01, FIG 402, ITEM NR 20. FOUND CLAMP BROKEN ON ADJACENT LINE PART NIS LAX. RAN NR 2 ENGINE IAW JRH CH.5 FOR LEAK CHECK. NO LEAKS NOTED. INSTALLED MISSING CLAMP AND CLOSED BOTH ACCESS PANELS. OK FOR SERVICE AT THIS TIME.