What was found
AIRCRAFT WAS GROUNDED: PILOT REPORTS NOSE LANDING GEAR MAKES A VERY LOUD CLUNK AFTER EXTENSION. MAINTENANCE FOUND STRUT PRESS GAGE ON NOSE STRUT AT ZERO PSI. FOUND THE NOSE STRUT PRESS TRANSDUCER AND STRUT PRESS TRANSDUCER SHUTOFF VALVE LEAKING NITROGEN. REMOVED AND REPLCED THE STRUT PRESSURE TRANSDUCER IAW AMM 27-48-07. REMOVED AND REPLACED THE STRUT PRESSURE TRANSDUCER SHUTOFF VALVE IAW AMM 27-48-08. SERVICED NOSE STRUT WITH NITROGEN IAW AMM 12-15-02. SWUNG NOSE GEAR SEVERAL TIMES. ALL OPS CHECK NORMAL. (SEE SDR #AALA201906249045)