-[UIWebView webThreadWebView:resource:willSendRequest:redirectResponse:fromDataSource:] + 92 is the crash which happens on unloading of screen having web-view.
In #Fabrics.io you will get log as below:
Crashed: WebThreadEXC_BAD_ACCESS KERN_INVALID_ADDRESS 0x0000000000000010
-[UIWebView webThreadWebView:resource:willSendRequest:redirectResponse:fromDataSource:]
Raw Text
Answer: You can simply set the web-view delegate to nil to get rid of this crash on deinit, dealloc methods.