What was found
NR 2 SERVO SYSTEM CAUTION LIGHT ILLUMINATED APPX. 15 MINUTES INTO THE FIRST FLIGHT OF THE DAY, ACCOMPANIED BY NR 2 HYDRAULIC PRESSURE FLUCTUATING 2000 AND 3000 PSI. EMERGENCY PROCEDURE WAS COMPLETED PER THE EP CHECKLIST. ENROUTE TO LEEVILLE WITH SYSTEM NR 2 SECURED, NR 2 HYDRAULIC PRESSURE FLUCTUATED BETWEEN 0-3000 PSI. NORMAL LANDING GEAR EXTENSION WAS NOT ATTEMPTED DUE TO INADEQUATE PRESSURE. LANDING GEAR WAS EXTENDED USING EMERGENCY BLOW-DOWN SYSTEM. AIRCRAFT WAS LANDED WITHOUT FURTHER INCIDENT.