What was found
ON APPR FOR 20 YEG, GEAR DOWN SELECTED, GOT AN UNSAFE GEAR INDICATION ON NOSE GEAR. FOLLOWED ECAM & QRH. EXTENDED GEAR W/GRAVITY PROCEDURE. TUG TO GATE. CARRIED OUT LUBE SERVICING INSTRUCTIONS ON NOSE GEAR ASSEMBLE AS PER AIRBUS AMM 12-22-32-00. NOSE GEAR SWING CARRIED OUT AS PER AMM REF 21-31-00-05. CYCLED EIGHT CONSECUTIVE CYCLES THAT CHECKED SERVICEABLE. AS PER CAUTIONARY AND MOCC REQUEST, RH NOSE DOOR SEQUENCE VALVE REMOVED AND REPLACED AS PER AMM REF 32-31-18-04. RECYCLED NOSE GEAR MUILTIPLE TIMES CHECKS GOOD. RH NOSE GEAR DOOR SEQUENCE VALVE LEAK AND FUNCTION CHECKS SERVICEABLE. OK FOR SERVICE.