Golden Eagle 421
Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 25; Flight Crew Total 1700; Flight Crew Type 150
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy; Ground Event / Encounter Loss Of Aircraft Control; Ground Excursion Runway
Aircraft Aircraft Damaged; General Flight Cancelled / Delayed
Aircraft
After a normal landing at ZZZ the right brake would not activate. Once rudder authority was lost the aircraft departed the left side of the runway. The nose gear collapsed in the soft dirt and the engines stopped. There were no injuries and we exited the aircraft.
Pilot reported right main brake malfunctioned; causing a runway excursion and aircraft damage.