What happened
On November 4, 2024, a pilot was operating an ALTO NG ultralight aircraft, registration OK-CUD 79, on a VFR flight from Nové Město (LKNM) toward Ostrava/Mošnov (LKMT). During the flight, the pilot requested navigational assistance from FISO Praha due to deteriorating weather conditions. After being informed that LKMT was experiencing IFR conditions and was unable to accept the flight, the pilot decided to divert to Zábřeh (LKZA), which appeared to have better visibility via webcam.
As the aircraft approached the Zábřeh area, it entered meteorological conditions that precluded VFR flight. The pilot reported zero visibility and began a series of maneuvers, including descending below the minimum safe altitude. Despite instructions from the FISO to climb and maintain a safe altitude of at least 3,000 ft, the pilot performed a steep right turn while descending with a high vertical rate. This maneuver likely resulted in a loss of spatial orientation. The aircraft subsequently struck the ground near the village of Štítina, 4.2 km southwest of LKZA. The pilot sustained fatal injuries, and the aircraft was destroyed.
The investigation
The ÚZPLN investigation examined several sources of evidence, including the pilot's documentation, aircraft technical records, ATS communications, and flight data from the SkyView HDX1100 system and ADS-B recordings. The investigation also reviewed the engine condition and wreckage analysis. Investigators noted that the aircraft's ballistic parachute system was not activated during the impact. Due to the risk of accidental activation, pyrotechnic specialists were required to secure the wreckage site.
Findings
- The pilot entered meteorological conditions that prevented VFR flight (IMC).
- The flight took place after civil twilight, and the destination airport (LKZA) had no active lighting.
- The pilot performed a steep descending turn below the minimum safe altitude.
- The pilot likely experienced a loss of spatial orientation during the final maneuvers.
- The aircraft's ballistic parachute system failed to deploy.