What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Upon aircraft landing while decelerating using braking and thrust reversers, the pilot reported the aircraft began to pull to the right. The pilot was not able to maintain the aircraft on runway centerline and the aircraft eventually came to rest with the nose landing gear (NLG) and right main landing gear (MLG) off the runway completely. After aircrew safely exited the aircraft, the aircraft was eventually moved to an adjacent hangar where inspection revealed minor damage to the NLG and right MLG. Additionally, a check of the anti-skid system status panel revealed the following status indicators were set to failure mode: "left xdcr", "valve", and "control unit". Based on the noted fault indications, a maintenance operational check of the anti-skid system was performed, and a component failure was noted with the anti-skid brake control unit which would not allow the brakes to release pressure. It appears this failure caused the right MLG brakes/wheel assembly to lock up and led to the aircraft eventually departing the runway.
As the FAA filed it
UPON AIRCRAFT LANDING WHILE DECELERATING USING BRAKING AND THRUST REVERSERS, THE PILOT REPORTED THE AIRCRAFT BEGAN TO PULL TO THE RIGHT. THE PILOT WAS NOT ABLE TO MAINTAIN THE AIRCRAFT ON RUNWAY CENTERLINE AND THE AIRCRAFT EVENTUALLY CAME TO REST WITH THE NOSE LANDING GEAR (NLG) AND RIGHT MAIN LANDING GEAR (MLG) OFF THE RUNWAY COMPLETELY. AFTER AIRCREW SAFELY EXITED THE AIRCRAFT, THE AIRCRAFT WAS EVENTUALLY MOVED TO AN ADJACENT HANGAR WHERE INSPECTION REVEALED MINOR DAMAGE TO THE NLG AND RIGHT MLG. ADDITIONALLY, A CHECK OF THE ANTI-SKID SYSTEM STATUS PANEL REVEALED THE FOLLOWING STATUS INDICATORS WERE SET TO FAILURE MODE: "LEFT XDCR", "VALVE", AND "CONTROL UNIT". BASED ON THE NOTED FAULT INDICATIONS, A MAINTENANCE OPERATIONAL CHECK OF THE ANTI-SKID SYSTEM WAS PERFORMED, AND A COMPONENT FAILURE WAS NOTED WITH THE ANTI-SKID BRAKE CONTROL UNIT WHICH WOULD NOT ALLOW THE BRAKES TO RELEASE PRESSURE. IT APPEARS THIS FAILURE CAUSED THE RIGHT MLG BRAKES/WHEEL ASSEMBLY TO LOCK UP AND LED TO THE AIRCRAFT EVENTUALLY DEPARTING THE RUNWAY.