He did. And the floats failed. Because they had not been maintained safely. We have plenty of proof of this, including a TCCA M&M Safety Inspection Report.
You sound like Bill Yearwood.
Even if there was an engine malfunction, it doesn't make the aircraft uncontrollable. It shouldn't cause the accident...Historically, engine failures don't cause accidents like this.
Historically, people take better care of their aircraft.