Browse wiki

TS 3.6.2.1, Containment Spray and Cooling … TS 3.6.2.1, Containment Spray and Cooling Systems, requires two containment spray trains and two containment cooling trains to be operable in Modes 1, 2, and 3. If one containment spray train is inoperable, the TS required action is to restore the inoperable train within 72 hours or be in Hot Standby within 6 hours. Contrary to the above, at 7:33 PM on May 16, Dominion exceeded the 72 hour allowed outage time for the A containment spray train, due to the delayed completion of the gas void detection surveillance test. In addition, TS 3.0.4 prohibits entry into an Operational Mode without all requisite limiting conditions of operation met. Contrary to the above, at 7:33 PM on May 13, Unit 2 entered Mode 3 with pressure greater than 1750 psia and an inoperable A containment spray train. Dominion entered the issue into the CAP as CR 549280. The inspectors determined that this finding was of very low safety significance using IMC 0609, Appendix A, because the period of unavailability was of short duration (approximately 88 hours) and occurred during Mode 3. The B train of containment spray remained unaffected by the voids found in the A train.ffected by the voids found in the A train. +

Discovered date

23:59:59, 30 September 2014 +

Docket

05000336 + and 05000423 +

Event date

23:59:59, 30 September 2014 +

Finding integer

1 +

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

8.333333e-4 d (0.02 hours, 1.190476e-4 weeks, 2.7396e-5 months) +, 6.944444e-5 d (0.00167 hours, 9.920635e-6 weeks, 2.283e-6 months) + and 0.00102 d (0.0244 hours, 1.455026e-4 weeks, 3.3484e-5 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 05000336/2014004 +

Inspector

Joseph Deboer +, Raymond Mckinley +, Brian Haagensen +, Louis Mckown +, Josephine Ambrosini +, Neil Day + and Sarah Shaffer +

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>.

15:50:10, 30 May 2018 +

Person