Organizational communication

This essay has a total of 446 words and 2 pages.

organizational communication

The Three Mile Island Disaster - An Organizational Communication Study


The accident at the Three Mile Island Unit 2 nuclear power plant near Middleton,
Pennsylvania, on March 28, 1979, was the most serious in U.S. commercial nuclear power
plant operating history. Even though it led to no deaths or injuries to plant workers or
members of the near by community, it did bring about sweeping changes involving emergency
response planning, reactor operator training , human factors engineering, radiation
protection, and many other areas of nuclear power plan operations. It also caused the U.S.
Nuclear Regulatory Commission to tighten and heighten its regulatory oversight. Resultant
changes in the nuclear power industry and as the NRC has the effect of enhancing safety.

The accident began at about 4:00 am on March 28, 1979, when the plant experienced failure
in the secondary, non - nuclear section of the plant. The main feed water pumps stopped
running, caused by either a mechanical or electrical failure, which prevented the steam
generators from removing heat. First the turbine, then the reactor automatically shut
down. Immediately, the pressure in the primary system (the nuclear portion of the plant)
began to increase. In order to prevent the pressure from becoming excessive, the
pressurizer relief valve (a valve located at the top of pressurizer) opened. The valve
should have closed when the pressure decreased by a certain amount but did not. Signals
available to the operator failed to show that the valve was still open. As a result, the
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