What was found
PDIS 604 29-02 1940 30MAR22 CRK OPEN U ON CLIMB OUT RECEIVED LEVEL TWO HYD 1 FAIL. ALL FLUID LOST. DECLARED EMERGENCY AND RETURNED TO CRK. WHILE CONFIGURING RECEIVED LEVEL TWO SLAT DISAG WITH ROLLING MOMENT. RAN QRH AND PLANNED FLAP 28/0 EXT LANDING AND ON SHORT FINAL RECEIVED LEVEL TWO FLAP DISAG. DISCONTINUED APPROACH. CONFIGURED FOR SECOND APPROACH AT SLOWER SPEED AND LANDED FLAPS 28/0 EXT UNEVENTFULLY. REMOVED HYD SYS NO.1 MANIFOLD ASSY.PER MD11 AMM 29-12-40-2. NOTE NO PART NUMBER & SERIAL NUMBER ON REMOVED PARTS.( MISSING DATA PLATE)