Report is out now.
Sad but true:
The National Transportation Safety Board determines the probable cause(s) of this accident to be:
The pilot's failure to follow airplane flight manual procedures for an antiskid failure in flight and his failure to immediately retract the lift dump after he elected to attempt a go-around on the runway. Contributing to the accident were the pilot's lack of systems knowledge and his fatigue due to acute sleep loss and his ineffective use of time between flights to obtain sleep.
Here the full Report:
ERA13MA139