212wrench Posted December 12, 2022 Author Report Share Posted December 12, 2022 Interesting read. It doesn't blame the blades. Read the bottom section about where the aircraft came from and then see if you can make a conclusion if it was the blades or not. Quote Link to comment Share on other sites More sharing options...
UggaDugga Posted December 12, 2022 Report Share Posted December 12, 2022 "At some point during the flight, the main rotors became deformed. Although indications of fatigue were present post-occurrence, the extent to which this fatigue contributed to the deformation could not be determined. In the last moments of the flight, likely as a result of the deformed blades, the main rotor rpm decreased to a point that could not sustain autorotational flight, and the helicopter fell vertically and impacted the ground." There were a lot of other things going on, probably could have overcome them... But not when carbon blade are "deformed" 1 Quote Link to comment Share on other sites More sharing options...
88is Posted December 13, 2022 Report Share Posted December 13, 2022 Forgetting the pre-incident fatigue, it seems that the blades could be deforming during autorotation. Van Horn's test machine crashed during max gross auto testing - then this one has an engine failure (presumably due to the incorrect fuel setup), and it's found the blades deformed at some time during the flight. 1 Quote Link to comment Share on other sites More sharing options...
GrayHorizons Posted December 13, 2022 Report Share Posted December 13, 2022 heres something more to add some context to the blade issue https://aerossurance.com/helicopters/main-rotor-blade-certification-anomaly-in-fatal-canadian-accident/ 3 Quote Link to comment Share on other sites More sharing options...
Rifleman Posted December 16, 2022 Report Share Posted December 16, 2022 I assume this was a typo? "The damage to the cyclic control was such that the position of the twist grip throttle was inconclusive." From section 1.12 of the report. Quote Link to comment Share on other sites More sharing options...
ray Posted December 16, 2022 Report Share Posted December 16, 2022 I noticed that too, and also believe it was a typo. Quote Link to comment Share on other sites More sharing options...
412driver Posted January 1, 2023 Report Share Posted January 1, 2023 Man, I cannot believe that this happened.... 🤥😉 "The investigation determined that the pilot was not forthcoming with his CAMEs about conditions that were being followed by his family physician. In addition, the pilot’s family physician did not report the pilot’s conditions to TC, which contributed to TC’s incomplete understanding of the pilot’s health. If pilots do not declare all health issues to TC CAMEs and/or if pilots’ family physicians do not report medical conditions that are likely to constitute an aviation hazard, as required, TC may not be able to accurately assess the medical fitness of pilots, resulting in an increased risk that pilots will operate with diagnosed medical conditions that could affect flight safety." 3 Quote Link to comment Share on other sites More sharing options...
xrkyle Posted January 4, 2023 Report Share Posted January 4, 2023 On 1/1/2023 at 1:18 PM, 412driver said: Man, I cannot believe that this happened.... 🤥😉 "The investigation determined that the pilot was not forthcoming with his CAMEs about conditions that were being followed by his family physician. In addition, the pilot’s family physician did not report the pilot’s conditions to TC, which contributed to TC’s incomplete understanding of the pilot’s health. If pilots do not declare all health issues to TC CAMEs and/or if pilots’ family physicians do not report medical conditions that are likely to constitute an aviation hazard, as required, TC may not be able to accurately assess the medical fitness of pilots, resulting in an increased risk that pilots will operate with diagnosed medical conditions that could affect flight safety." I think the most notable aspect is the deceased pilot lived on Vancouver Island and had a family physician. Quote Link to comment Share on other sites More sharing options...
afonus Posted February 27, 2023 Report Share Posted February 27, 2023 On 12/13/2022 at 8:36 AM, GrayHorizons said: heres something more to add some context to the blade issue https://aerossurance.com/helicopters/main-rotor-blade-certification-anomaly-in-fatal-canadian-accident/color by number Even though I spotted it, I still think it was just a typing error. Quote Link to comment Share on other sites More sharing options...
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