During a training flight, an electrical short circuit caused an unintended extension of the ground and flight spoilers, leading to loss of control and a dive into a swampy area. The ground spoilers likely deployed due to a hot electrical short in the spoiler extend circuitry. The left ground spoiler actuator failed, resulting in a loss of lateral control, and the full nosedown elevator trim tab position contributed to the loss of pitch control. The aircraft experienced a series of 360-degree rolls and then descended into a swampy area.During a training flight, an electrical short circuit caused an unintended extension of the ground and flight spoilers, leading to loss of control and a dive into a swampy area. The ground spoilers likely deployed due to a hot electrical short in the spoiler extend circuitry. The left ground spoiler actuator failed, resulting in a loss of lateral control, and the full nosedown elevator trim tab position contributed to the loss of pitch control. The aircraft experienced a series of 360-degree rolls and then descended into a swampy area.