On January 2, 2024, about 1710 central standard time, a Learjet 35A, N45MF, was substantially damaged when it was involved in an accident near San Marcos, Texas. The 2 pilots and 3 passengers were not injured. The airplane was operated under the provisions of Title 14 Code of Federal Regulations Part 135 as an air medical transport flight.

The airplane departed Albuquerque International Sunport Airport (ABQ), Albuquerque, New Mexico, about 1448 mountain standard time and flew to San Marcos Regional Airport (HYI), Austin, Texas. The crew flew the ILS 13 approach to runway 13 (5,601 ft asphalt runway).

The pilot reported that during the landing, he touched down within the touchdown zone, applied the brakes, and deployed the spoilers. The airplane did not respond to braking and did not slow down for the airplane to remain on the runway.

The airplane departed the end of runway 13 and came to rest in the grass. The lower fuselage sustained substantial damage.

The airplane was retained for further examination.

Wind Speed/Gusts, Direction: 12 knots / 24 knots, 310°