Citationjet (C525/C526) - CJ I / II / III / IV
Flight Crew Commercial
Troubleshooting; Situational Awareness; Time Pressure
Aircraft Equipment Problem Less Severe
Flight Crew Returned To Departure Airport
Aircraft
On climbout through roughly 13;000 feet; we felt multiple vibrations/shudders along with an accompanying HYD PRESS ON light. After discussing various possible causes - gear; flaps; speed brakes; etc.; the Pilot Monitoring could see that the speed brakes on the right side were partially deploying and retracting intermittently. After getting a weather update at ZZZ we requested to return. Approach and landing were uneventful. No emergency declared.
Cessna 525 Captain reported an intermittent partial deployment of the speedbrakes during climbout; resulting in an air return to the departure airport.