What was found
AT 6000 FT & 210 KNOTS ATTEMPTED TO EXTEND SLATS INFLT. SLATS FAILED TO EXTEND WITH ECAM & ASSOCIATED CHIME. ECAM SHOWED SLATS SYS 1 & 2 FAULTED. FOLLOWED ECAM PROCEDURE WITH NO SUCCESS. RAN QRH & ABLE TO GET FLAPS TO 40 DEGREES WITH SLATS RETRACTED. LANDED NORMAL & RETRACTED FLAPS TAXIING TO GATE. EMERGENCY DECLARED IAW FIM: 27-80-00 PERFORMED BITE CHECK ON SFCC 1 & 2. BOTH SLAT & FLAP INDS PASSED, IAW TSM 27-80-00 THEN FULLY EXTENDED & RETRACTED SLATS & FLAPS WITH VISUAL CONFIRMATION. WHEN SERVICING LT WING, NR 6 SLAT JACKSCREW, WATER INTRUSION WAS FOUND. IAW AMM 27-84-23-04, COMPLETED LT WING SLAT JACKSCREW INSTALLATION IAW AMM 27-84-23-04. SYSTEM TESTED GOOD.