N705JP

On September 1, 2024, about 1520 central daylight time, a Diamond DA42 airplane, N705JP, sustained substantial damage when it was involved in an accident near Mandan, North Dakota. The pilot and passenger were not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight.

According to the pilot, he departed Bismark Municipal Airport (BIS) and requested vectors for the RNAV 31 approach at Mandan Regional Airport (Y19) from air traffic control. The pilot reported that his approach to Y19 was uneventful and estimated that he touched down about 100 ft past the numbers for runway 31. The pilot attempted to decelerate, keeping constant pressure on the brakes. The pilot stated that the brakes were not working until he approached the end of the runway at which point the brakes “slowly got responsive.” The pilot stated that the pilot-rated passenger asked about conducting a go-around during the landing attempt, but the pilot was focused on stopping. The pilot reported that a go-around could have been possible and that it was a “shock” that he couldn’t stop the airplane.

According to the pilot-rated passenger, the landing at Y19 was so smooth that he did not notice the airplane had touched down until the nose wheel shimmied. The passenger stated that the airplane appeared to touchdown within the first third of the 4399 ft runway. He stated that the landing roll seemed normal, but he did not feel as much deceleration as he would have expected.

The airplane exited the paved surface of the runway and impacted a runway end identifier light (REIL) resulting in substantial damage to the fuselage.

According to the airport manager, who examined the runway surface after the accident, there were visible tire skid marks leading off the end of the runway.

A review of Automatic Dependent Surveillance – Broadcast (ADS-B) data revealed that the airplane departed from runway 13 at BIS, climbed to about 4,500 ft mean sea level and made an approach to runway 31 at Y19. The airplane’s ground speed at touchdown was about 118 kts.

A review of Automated Weather Observing System (AWOS) data based on the field at Y19 revealed that five minutes before the accident, the wind was from 170° at 7 knots.

The airplane was recovered for further examination.