What was found
DURING SLAT RETRACTION, AFTER TAKEOFF RECEIVED A PSEU FAIL CAUTION INDICATION. DURING APPROACH, EXTENSION OF SLATS, DOWN ARROW STAYED ON, THOUGH INTERMITTENT. PERFORMED A NO FLAP, NO SLAT LANDING IAW QRH. REPLACED THE LT SLAT A SENSOR D1-65 IAW AMM 27-84 WDM 27-84-00. FOUND WIRE 9506-22-20RD HAD SHORTED TO GROUND BETWEEN P1 6005 AND D1-65. REPLACED THE WIRES 9506-22-20RD AND 9506-22-02BL IAW SWPM 20-10-03 20-00-09. REPLACED THE PSEU IAW AMM 32-61. PERFORMED A FUNCTIONAL TEST OF THE SLAT SYSTEM IAW AMM 27-80. TESTED OK. PERFORMED AN OPERATIONAL SLAT SENSOR TEST IAW AMM 27-84, NO FAULTS.