Cessna 152
Flight Crew Commercial; Flight Crew Flight Instructor
Flight Crew Last 90 Days 90; Flight Crew Total 350
Distraction; Situational Awareness
Aircraft Equipment Problem Less Severe; Ground Event / Encounter Loss Of Aircraft Control; Ground Excursion Runway
General Maintenance Action
Aircraft
After landing on the Runway XXL in ZZZ with my student; the aircraft lost the hydraulic braking system on the right side; unable to stop the plane to keep the center line of the runway. I cut the mixture to stop the airplane and getting into the grass next to Taxiway Delta on the left. Finally the incident was reported to ground control on 120.45 who assisted me all the time; there were no damages.
Cessna 152 flight instructor reported a loss of hydraulic brake pressure after landing; resulting in a runway excursion.