What was found
*EMERGENCY DECLAERD* ECAM CAUTION MESSAGE - Y RSVR LO LVL MESSAGE INOP - HYD HYD Y RSVR LO LVL PULLED AND COLLARD CIRCUIT BREAKERS ON PANEL 123VU - "Y HYD ELEC PULLED AND COLLARED 2 YELLOW ELECT PUMP C/B PUMP" AND "Y PUMP CONTROL" ON PANEL 121VU. FOUND LEAK AT YELLOW SYSTEM HYD PTU MANIFOLD. REMOVED YELLOW SYSTEM PTU MANIFOLD REF AMM 29-13-15000-001-A. PARTS ON ORDER FOR INSTALLATION. ALL LINES HAVE BEEN CAPED AND OR PLUGGED. INSTALLED NEW PACKINGS ON CHECK VALVE 3094GM. REINSTALLED PTU MANIFOLD IAW AMM 29-13-15-400-001-A. RAN ENGINES, OPS CHECK GOOD ON PTU AND NO LEAKS NOTED IAW AMM 29-23-00-710-004-A