Startseite Skripte für das Wintersemester 2018/19 Interaction Design Menschliche Eigenschaften Three Mile Island accident

Three Mile Island accident

Carter leaving Three Mile Island

The mechanical failures were compounded by the initial failure of plant operators to recognize the situation as a loss-of-coolant accident due to inadequate training and human factors, such as human-computer interaction design oversights relating to ambiguous control room indicators in the power plant's user interface.

In particular, a hidden indicator light led to an operator manually overriding the automatic emergency cooling system of the reactor because the operator mistakenly believed that there was too much coolant water present in the reactor and causing the steam pressure release.