Citationjet (C525/C526) - CJ I / II / III / IV
Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Critical
Flight Crew Executed Go Around / Missed Approach; Flight Crew Landed in Emergency Condition; Flight Crew Overcame Equipment Problem; General Declared Emergency
Aircraft
After completing the check flight and during the visual approach; the landing gear handle was put in the down position but we had no indicator lights that the gear was locked down. So we executed a go-around and stayed in the pattern while doing the appropriate checklist. After the landing gear was blown down and declaring an emergency; we had a low brake pressure indicator so  we continued to circle in the pattern while running the appropriate checklist for low brake pressure and the emergency equipment deployment.  We then landed without incident.
CE-525 Captain experiences a landing gear failure to extend during approach. A go-around is initiated and the landing gear is blown down successfully but low brake pressure is indicated. The appropriate checklist is complied with and a safe landing ensues.