Incident Overview
On June 28, 2019, a group flight from Mielec to Gliwice was being conducted with three aircraft, each carrying a two-person crew. Approximately eight minutes before landing, the pilot of an AT-3R100, registration SP-EZH, reported an emergency landing due to problems with the engine control lever. The aircraft landed at a landing site in Świętochłowice at 09:42 local time, sustaining damage. The crew did not sustain any injuries, and no additional rescue actions were required as no other hazards were identified.
Cause
The Polish State Commission for Aircraft Accident Investigation determined that the cause of the incident was improper maintenance: failure to secure the pushrod of the engine control lever, which led to the spontaneous unscrewing of the left pushrod tip and its subsequent jamming.
Contributing Factors
No contributing factors were identified.
Post-Incident Actions
After landing, the pilot informed the aircraft owner of the incident. The commission was notified via the emergency number. The incident was discussed with maintenance personnel as a preventive measure. No additional safety recommendations were issued.