Narrative:

On departure we got a hydraulic quantity low crew alert system (cas). There were no other indications of a problem and the weather was good so I elected to continue to our destination. When on a visual approach the flaps would not come down and [we] got hydraulic main low. I called for the gear down which was slow; but came down. At that point I thought the best action was to [divert to another airport] for a longer runway. I landed the aircraft with normal braking and had no problems taxiing to the ramp.we got a white cas but didn't think it was a problem until we had trouble getting the landing gear down.we went to an airport with a longer runway in case we did not have hydraulics for brakes.

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Original NASA ASRS Text

Title: LR-45 Captain reported diverting to a suitable alternate when they got a CAS for low hydraulic quantity.

Narrative: On departure we got a hydraulic quantity low Crew Alert System (CAS). There were no other indications of a problem and the weather was good so I elected to continue to our destination. When on a visual approach the flaps would not come down and [we] got hydraulic main low. I called for the gear down which was slow; but came down. At that point I thought the best action was to [divert to another airport] for a longer runway. I landed the aircraft with normal braking and had no problems taxiing to the ramp.We got a white CAS but didn't think it was a problem until we had trouble getting the landing gear down.We went to an airport with a longer runway in case we did not have hydraulics for brakes.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.