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On February 15, operators discovered that … On February 15, operators discovered that the insulating cover on Unit 3 was not properly secured over the 3MSS*PT526 B SG pressure transmitter, but did not declare the system inoperable until February 19 due to a lack of understanding of the equipment qualification needs of the transmitter. TS 3.3.2 allows the pressure transmitter to be inoperable for 6 hours before tripping the channel. Contrary to this, Dominion did not take appropriate action to trip the channel for a period of four days. This finding impacted the Mitigating Systems cornerstone and screened to Green in accordance with the screening questions from IMC 0609, Appendix A, Exhibit 2. Dominion entered the issue into their CAP as CR505990 and submitted LER 05000423/2013-001-00.90 and submitted LER 05000423/2013-001-00. +

Discovered date

23:59:59, 30 June 2013 +

Docket

05000336 + and 05000423 +

Event date

23:59:59, 30 June 2013 +

Finding integer

5 +

Finding type

Non-cited violation +

Has query"Has query" is a predefined property that represents meta information (in form of a <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Subobject">subobject</a>) about individual queries and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.

Hours

6.944444e-5 d (0.00167 hours, 9.920635e-6 weeks, 2.283e-6 months) +

Identified by

Licensee-identified +

Inspection Manual Chapter

NRC Inspection Manual 0609/Appendix A, The Significance Determination Process (SDP) for Findings At-Power +

Inspection report

IR 05000336/2013003 +

Inspector

J Laughlin +, Ronald Rolph +, E Burkett +, P Kaufman +, Elizabeth Andrews +, Brian Haagensen +, Fred Bower +, Josephine Ambrosini +, Christopher Newport + and James Krafty +

LER

05000423/LER-2013-001, Regarding Improperly Secured Enclosure Caused Inoperability of Steam Generator Pressure Transmitter +

Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.

15:47:44, 30 May 2018 +

Person