[DOC] [TLE] Three Mile Island accident - Wikipedia [PAR]  [DOC] [TLE] NRC: Backgrounder on the Three Mile Island Accident [PAR] The Three Mile Island Unit 2 (TMI-2) reactor, near Middletown, Pa., partially melted down on March 28, 1979. This was the most serious accident in U.S. commercial nuclear power plant operating history, although its small radioactive releases had no detectable health effects on plant workers or the public. [DOC] [TLE] Three Mile Island accident - Wikipedia [PAR] The Three Mile Island accident was a partial nuclear meltdown that occurred on March 28, 1979, in reactor number 2 of Three Mile Island Nuclear Generating Station (TMI-2) in Dauphin County, Pennsylvania, United States. It was the most significant accident in U.S. commercial nuclear power plant history. [DOC] [TLE] Three Mile Island Accident. - World Nuclear Association [PAR] Three Mile Island: In 1979 at Three Mile Island in USA a cooling malfunction ... 
There were no injuries or adverse health effects from the Three Mile Island 
accident. The Three Mile Island power station is near Harrisburg, Pennsylvania in 
USA. ... The accident to unit 2 happened at 4 am on 28 March 1979 when the 
reactor... [DOC] [TLE] Case Study: Three Mile Island Accident [PAR] Although no deaths occurred, the accident at Three Mile Island Unit 2 was the ... 
The accident was a result of equipment malfunctions, worker errors, and ... Early 
morning on March 28, 1979 the Three Mile Island plant, which used pressurized 
water reactors, experienced a failure in the secondary, non-nuclear section of 
the... [DOC] [TLE] American Experience . Meltdown at Three Mile Island . The Film - PBS [PAR] In the predawn hours of March 28, 1979, a pressure valve suddenly 
malfunctioned at the Three Mile Island nuclear power plant near Harrisburg, 
Pennsylvania. [DOC] [TLE] Nuclear accident at Three Mile Island - Mar 28, 1979 - HISTORY.com [PAR] Mar 28, 1979 ... At 4 a.m. on March 28, 1979, the worst accident in the history of the U.S. nuclear 
power industry begins when a pressure valve in the Unit-2 reactor at Three ... The 
Three Mile Island nuclear power plant was built in 1974 on a sandbar .... Mile 
Island plant near Harrisburg, Pennsylvania, on this day in 1979,... [DOC] [TLE] March 28, 1979: Reactor Meltdown at Three Mile Island | WIRED [PAR] Mar 28, 2011 ... 1979: Equipment malfunction and human error lead to a partial reactor ... pumps 
to stop running, leading to an overheating of the plant's TMI-2 reactor. ... No 
deaths or injuries have ever been attributed to the Three Mile Island meltdown. ... 
Photo: A cooling tower of the Three Mile Island nuclear power plant... [DOC] [TLE] Three Mile Island | Cold War: A Brief History | History of the Atomic ... [PAR] The accident started at the plant's Unit 2 reactor when a small valve failed to 
close, ... In the predawn hours of March 28, 1979, a pressure valve suddenly 
malfunctioned at the Three Mile Island nuclear power plant near Harrisburg, 
Pennsylvania. ... bubble posed no immediate threat, and that the reactor core had 
stabilized. [DOC] [TLE] 14-Year Cleanup at Three Mile Island Concludes - NYTimes.com [PAR] Aug 15, 1993 ... 2 reactor, which was destroyed in the nation's worst nuclear plant accident. ... 
MIDDLETOWN, Pa., Aug 14 The cleanup at the Three Mile Island nuclear plant 
has ... The accident occurred on March 28, 1979, when a series of human ... 
nuclear power plant at Chernobyl, the reactor was simply entombed in... [DOC] [TLE] Three Mile Island accident | nuclear accident, United States [1979 ... [PAR] Accident in 1979 at the Three Mile Island nuclear power station that was the most 
serious in ... At 4:00 am on March 28, an automatically operated valve in the Unit 
2 reactor ... to shut down automatically, but a series of equipment and instrument 
malfunctions, ... Aerial view of Three Mile Island near Harrisburg, Pennsylvania. [DOC] [TLE] Case Details > Three Mile Island Nuclear Accident [PAR] Failure of the cooling system of the Unit 2 nuclear reactor led to overheating and 
... had a number of primary causes, related both to

Question: This Pennsylvania nuclear power plant's No. 2 reactor malfunctioned on March 28, 1979
Answer: Three Mile Island