Investigation Summary
The flight was chartered for political campaigning, originating in Sivas with a stopover in Caglayancerit, Kahramanmaras. Shortly after departing the stopover for Yerkoy, the helicopter encountered deteriorating weather. At 16:10 local time, reporter Ismail Gunes called emergency services, reporting he was injured and the sole survivor. Despite this, rescuers struggled to pinpoint the location due to a snapped ELT antenna. The search involved over 1,000 personnel but was frustrated by two meters of snow and fog. The wreckage was found 47 hours later by local volunteers. The investigation was later reopened to address allegations of foul play, including the presence of three military jets in the area ('hava hareketliligi') and the testing of victims for carbon monoxide poisoning. Lawyers for the families alleged that the victims might have been deliberately incapacitated or that the jets caused the crash. While the official cause remains CFIT, the legal team continues to challenge the findings, seeking a reassessment of air movements and potential poisoning to support their contention of deliberate killing.
Final Conclusions
The Turkish Civil Aviation Authority determined the primary cause was controlled flight into terrain (CFIT) due to bad weather and fog. The investigation noted that while the helicopter was equipped with an ELT, its antenna was broken during the crash, preventing the transmission of a strong distress signal. A secondary factor in the fatalities was the delay in the search and rescue operation caused by extreme environmental conditions, which led to the death of the sole initial survivor from hypothermia.
Video Analysis
No video analysis linked for this case file yet.
Systems & Failure Modes
Emergency Locator Transmitter (ELT)
A device designed to transmit a distress signal on 121.5 or 406 MHz upon impact; in this case, the antenna was severed, rendering the signal too weak for satellite detection.
GSM Triangulation
Authorities attempted to locate the crash site using signals from the passengers' mobile phones, but the mountainous terrain and limited cell tower density hindered precise coordinate calculation.
Interesting Facts
- 01The helicopter was cruising at a height of 1,000 to 1,500 feet above the terrain when it struck the mountain.
- 02The Emergency Locator Transmitter (ELT) antenna was broken during impact, preventing rescuers from receiving a strong signal.
- 03Search and rescue efforts involved over 1,000 personnel, including gendarmerie, AKUT volunteers, and village guards.
- 04The crash site was located at an elevation of approximately 2,000 meters (6,600 feet).
- 05The sole initial survivor, Ismail Gunes, managed to move 500 meters from the wreckage before dying of exposure.
Safety Actions & Advisories
SAR Coordination Review
The Turkish Prime Minister initiated an official investigation into the potential failure of authorities regarding the coordination and duration of the search and rescue operation.
Known Controversies & Unanswered Questions
Allegations of Foul Play and Military Interference
Reference ↗Lawyers for the victims' families requested a reopening of the investigation to examine regional air traffic ('hava hareketliligi'), alleging that three military jets in the area might have caused the crash. Additionally, the investigation looked into carbon monoxide levels in the victims to determine if they were deliberately poisoned or incapacitated.