Narrative:

The day started where the plane is based. We departed with two passengers and headed to ZZZ to pick up four more. We did a visual approach and landing with no abnormalities. I allowed the plane to roll out the full distance of the runway to use minimal braking. We taxied in and shut down both engines to load the passengers that were waiting. I performed a quick walk around before boarding the aircraft. Once on board I gave short safety briefing and restarted the engines. We taxied out for departure. From the marks left by the tires it seemed at some point one of the right mains started leaking air and started leaving marks on the pavement. Once we got a release from ATC for takeoff we proceeded onto the runway for departure. On the takeoff roll at just before 127 KTS the right mains blew causing a loss of directional control and the takeoff was aborted at that time. I regained direction control and proceeded to stop the aircraft. The 4 tires took out the brake hydraulic lines on the right side and was left with just the left side brakes. I was unable to bring the plane to a full stop at the end of the runway and continued into the grass for an estimated 500 ft. Once stopped we shut down the aircraft and proceeded to evacuate the plane. A couple of small grass fires were started from the hot brakes which we quickly extinguished with the use of an on board fire extinguisher. The proper authorities were informed of the incident. No one was hurt and seems to be minimal damage to the aircraft.

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Original NASA ASRS Text

Title: HS-125 Captain reported aborting the takeoff when the right main tires blew. The aircraft came to a stop in the grass at the end of the runway.

Narrative: The day started where the plane is based. We departed with two passengers and headed to ZZZ to pick up four more. We did a visual approach and landing with no abnormalities. I allowed the plane to roll out the full distance of the runway to use minimal braking. We taxied in and shut down both engines to load the passengers that were waiting. I performed a quick walk around before boarding the aircraft. Once on board I gave short safety briefing and restarted the engines. We taxied out for departure. From the marks left by the tires it seemed at some point one of the right mains started leaking air and started leaving marks on the pavement. Once we got a release from ATC for takeoff we proceeded onto the runway for departure. On the takeoff roll at just before 127 KTS the right mains blew causing a loss of directional control and the takeoff was aborted at that time. I regained direction control and proceeded to stop the aircraft. The 4 tires took out the brake hydraulic lines on the right side and was left with just the left side brakes. I was unable to bring the plane to a full stop at the end of the runway and continued into the grass for an estimated 500 ft. Once stopped we shut down the aircraft and proceeded to evacuate the plane. A couple of small grass fires were started from the hot brakes which we quickly extinguished with the use of an on board fire extinguisher. The proper authorities were informed of the incident. No one was hurt and seems to be minimal damage to the aircraft.

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.