Losing the private SSH key to your Amazon EC2 instance on Amazon Web Services (AWS) can be a daunting experience. However, AWS provides several methods to regain access to your instance. This podcast will walk you through the steps needed to recover your EC2 instance on AWS when your private SSH key is lost.
https://businesscompassllc.com/how-to-gain-access-to-an-ec2-instance-on-amazon-web-services-aws-when-the-private-ssh-key-is-lost/