{"id":389,"date":"2002-07-02T18:12:31","date_gmt":"2002-07-02T09:12:31","guid":{"rendered":"http:\/\/www.cnic.jp\/english\/wordpress\/?p=389"},"modified":"2015-02-27T18:05:28","modified_gmt":"2015-02-27T09:05:28","slug":"data-significant-incidents-at-nuclear-facilities-2001","status":"publish","type":"post","link":"https:\/\/cnic.jp\/english\/?p=389","title":{"rendered":"DATA: Significant incidents at Nuclear Facilities (2001) Nuke Info Tokyo No. 90"},"content":{"rendered":"
\n

DATA: Significant incidents at Nuclear Facilities (2001)<\/span><\/i><\/h2>\n<\/div>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Date<\/b><\/td>\nFacility<\/b><\/td>\nBrief Description of Event<\/b><\/td>\n<\/tr>\n
Jan 15<\/td>\nFukushima II-1<\/td>\nReactor manually shutdown due to rupture of coolant flow measurement housing tube at jet pump.<\/td>\n<\/tr>\n
Mar 4<\/td>\nTakahama-2<\/td>\nPower reduction due to steam leak into high pressure fead-water heater drain line.<\/td>\n<\/tr>\n
Apr 5<\/td>\nKashiwazaki-Kariwa-5<\/td>\nControl rod manual operation system failed due to integrated circuit abnormality.<\/td>\n<\/tr>\n
Apr 19<\/td>\nTakahama-1<\/td>\nReactor power manually lowered due to coolant leak caused by 2 heat exchange tube ruptures in high pressure feed water heater.<\/td>\n<\/tr>\n
May 7<\/td>\nFukushima II-2<\/td>\nReactor manually shutdown due to failure of shutting check valve during residual heat removal system inpection.<\/td>\n<\/tr>\n
May 23<\/td>\nFugen<\/td>\nReactor manually shutdown due to tritium leak at helium circular system piping.<\/td>\n<\/tr>\n
May 24<\/td>\nFukushima I-6<\/td>\nRadioactivity leak found at fuel assembly during intermediate periodic inspection.<\/td>\n<\/tr>\n
June 18<\/td>\nKashiwazaki-Kariwa-6<\/td>\nReactor manually shutdown due to coolant leak at reactor auxiliary cooling system valve.<\/td>\n<\/tr>\n
July 6<\/td>\nTakahama-3<\/td>\nDamage to 17 steam generator tubes found during periodic inspection.<\/td>\n<\/tr>\n
July 6<\/td>\nFukushima II-3<\/td>\nCracks found on core shroud lower ring during periodic inspection.<\/td>\n<\/tr>\n
July 8<\/td>\nKashiwazaki-Kariwa-5<\/td>\nControl rod manual operation system failed due to integrated circuit abnormality.<\/td>\n<\/tr>\n
July 13<\/td>\nKashiwazaki-Kariwa-5<\/td>\nControl rod manual operation system failed due to integrated circuit abnormality.<\/td>\n<\/tr>\n
July 21<\/td>\nKashiwazaki-Kariwa-7<\/td>\nRadioactivity leak found in fuel assembly.<\/td>\n<\/tr>\n
July 27<\/td>\nKashiwazaki-Kariwa-6<\/td>\nControl rod manual operation system failed due to integrated circuit abnormality.<\/td>\n<\/tr>\n
Aug 10<\/td>\nRokkasho repro.<\/td>\n1.6 tons of coolant leak from pool coolant system heat exchanger outlet valve at spent fuel storage pool.<\/td>\n<\/tr>\n
Sep 8<\/td>\nIkata-2<\/td>\n145 cracks found on reactor core monitor housing tubes due to chloride induced stress corrosion cracking during periodic inspection.<\/td>\n<\/tr>\n
Sep 10<\/td>\nKashiwazaki-Kariwa-4<\/td>\nRuptures and cracks found on regenerated heat exchanger tubes during periodic inspection.<\/td>\n<\/tr>\n
Sep 19<\/td>\nKashiwazaki-Kariwa-5<\/td>\nControl rod manual operation system failed due to integrated circuit abnormality.<\/td>\n<\/tr>\n
Sep 25<\/td>\nOnagawa-2<\/td>\nReactor manually shutdown due to coolant leak from degraded recirculation pump mechanical sealing.<\/td>\n<\/tr>\n
Oct 31<\/td>\nJoyo<\/td>\nFire at maintenance building during sodium cleaning operation.<\/td>\n<\/tr>\n
Nov 1<\/td>\nFukushima II-2<\/td>\nReactor automatically shutdown due to high signal of reactor neutron flux during reactor start up operation.<\/td>\n<\/tr>\n
Nov 7<\/td>\nHamaoka-1<\/td>\nReactor manually shutdown due to pipe rupture in residual heat removal system steam condense mode line caused by detonation of radiolysis gases during start-up test at high pressure core injection system pump.<\/td>\n<\/tr>\n
Nov 9<\/td>\nHamaoka-1<\/td>\nReactor coolant leak due to crack of stub tube welding attached to control rod drive mechanism housing.<\/td>\n<\/tr>\n
Dec 10<\/td>\nTokai II<\/td>\nReactor power reduced to 65 % of full capacity due to lowered reactor water level caused by abnormality of water flow control integrated circuit during maintenance in feed water pump system.<\/td>\n<\/tr>\n
Dec 28<\/td>\nRokkasho repro.<\/td>\nCoolant leak from PWR spent fuel storage pool.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

DATA: Significant incidents at Nuclear Facilities (2001) Date Facility Brief Description of Event Jan 15 Fukushima II-1 Reactor manually shutdown due to rupture of coolant flow measurement housing tube at jet pump. Mar 4...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[17,4],"tags":[],"class_list":["post-389","post","type-post","status-publish","format-standard","hentry","category-accidentlist","category-data"],"acf":[],"_links":{"self":[{"href":"https:\/\/cnic.jp\/english\/index.php?rest_route=\/wp\/v2\/posts\/389","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cnic.jp\/english\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cnic.jp\/english\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cnic.jp\/english\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cnic.jp\/english\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=389"}],"version-history":[{"count":1,"href":"https:\/\/cnic.jp\/english\/index.php?rest_route=\/wp\/v2\/posts\/389\/revisions"}],"predecessor-version":[{"id":2381,"href":"https:\/\/cnic.jp\/english\/index.php?rest_route=\/wp\/v2\/posts\/389\/revisions\/2381"}],"wp:attachment":[{"href":"https:\/\/cnic.jp\/english\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=389"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cnic.jp\/english\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=389"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cnic.jp\/english\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=389"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}