"Growing problem: The story of one tube
"The tube in row 80, column 103 of one of the steam generators at St. Lucie shows how the wear is getting worse.
"In March 2009, the tube showed wear at five locations. The depths were:
1. 6 percent through the tube
2. 6 percent
3. 8 percent
4. 15 percent
5. 17 percent
"In April 2011, the number of wear indications on the tube had grown from five to six and they were all deeper.
1. 15 percent
2. 16 percent
3. 16 percent
4. 29 percent
5. 24 percent
6. 11 percent
"By November 2012, the six wear indications were again all deeper.
1. 20 percent
2. 20 percent
3. 21 percent
4. 33 percent
5. 26 percent
6. 17 percent"
http://www.tampabay.com/news/business/energy/cooling-tubes-at-fpl-st-lucie-nuke-plant-show-significant-wear/2166886
Be sure to use your cursor to see it all:
http://decommission.sanonofre.com/2013/02/awesome-animation-dangerous-san-onofrre.html
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http://sanonofresafety.files.wordpress.com/2011/11/steamgeneratortubesplugged1.pdf
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