Library filed under Structural Failure from Canada

Turbine in Ontario breaks in half

Chatham-kent-collapse_thumb The turbine that collapsed was a GE 1.5MW xle, placed in service in 2011 by US-based Invenergy as part of the 52-turbine (78 MW) Raleigh wind facility in Chatham-Kent in southwest Ontario. The project was soled to Terraform in 2015. No information has been released as to the cause of the failure. 
19 Jan 2018

'Forgotten washer' heard in hub before wind turbine collapsed in Cape Breton

Enercon's email did not elaborate on the hub's damage. However, documents from the Labour Department regarding a subsequent stop-work order said a hub assembly was damaged in a "bearing failure" in March 2016. On Aug. 17, workers tested the turbine's lightning-protection system, which required positioning the blades so they pitched into the wind.
15 May 2017

http://www.windaction.org/posts?location=Canada&topic=Structural+Failure
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