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At approximately 1934 EDT on May 15, 2013, … At approximately 1934 EDT on May 15, 2013, maintenance personnel entered the primary containment personnel air lock to determine the cause of the inability to attain test pressure during a type B leak rate of the airlock. The inner door seal was found degraded and partially rolled from its required position allowing air from inside the airlock to enter the primary containment. During the limited time the outer airlock door was opened for access into the airlock concurrent with the degraded seal on the inner door, a condition existed that could have prevented the fulfillment of the safety function of the structure to control the release of radioactive material.</br>The inner door seal was subsequently replaced and the leak rate of the personnel air lock completed with satisfactory results. During the seal replacement activity, the outer airlock door remained closed to provide the barrier against the release of radioactive material should it be required.</br>This is a notification per 10 CFR 50.72(b)(3)(v) for a condition that could have prevented the control of the release of radioactive material. It is recognized that this notification (was) not within eight hours of the event.</br>The condition has been entered into the station's corrective action program.</br>The licensee will notify the New York State Public Service Commission and the NRC Resident Inspector.</br>* * * RETRACTION ON 6/27/13 AT 1549 EDT FROM KROCK TO HUFFMAN * * * </br>This notification is being made to retract Event Notification #49043, which reported a condition that could have prevented the control of the release of radioactive material when the primary containment airlock inner door seal was found degraded concurrent with the outer door being open.</br>Further analysis by engineering of the actual conditions which were recorded when the airlock Type B leak rate test was being performed and calibration checks of the leak rate monitor instrumentation used for the test, has determined that the leakage through the degraded inner airlock door seal, when combined with the Appendix J As-Left Minimum Pathway Type B and C leak rates, remains below the Technical Specification Primary Containment As-Left Minimum Pathway Leakage Limit of 0.6 La. </br>Therefore, for the period in which the inner airlock door seal was degraded and the outer airlock door was open, the primary containment function to control the release of radioactive material was maintained and the initial notification per 10 CFR 50.72(b)(3)(v) is being retracted.</br>The licensee has notified the NRC Resident Inspector and the New York State Public Service Commission. R1DO (Ferdas) notified.rvice Commission. R1DO (Ferdas) notified.
23:34:00, 15 May 2013 +
16:46:00, 16 May 2013 +
23:34:00, 15 May 2013 +
At approximately 1934 EDT on May 15, 2013, … At approximately 1934 EDT on May 15, 2013, maintenance personnel entered the primary containment personnel air lock to determine the cause of the inability to attain test pressure during a type B leak rate of the airlock. The inner door seal was found degraded and partially rolled from its required position allowing air from inside the airlock to enter the primary containment. During the limited time the outer airlock door was opened for access into the airlock concurrent with the degraded seal on the inner door, a condition existed that could have prevented the fulfillment of the safety function of the structure to control the release of radioactive material.</br>The inner door seal was subsequently replaced and the leak rate of the personnel air lock completed with satisfactory results. During the seal replacement activity, the outer airlock door remained closed to provide the barrier against the release of radioactive material should it be required.</br>This is a notification per 10 CFR 50.72(b)(3)(v) for a condition that could have prevented the control of the release of radioactive material. It is recognized that this notification (was) not within eight hours of the event.</br>The condition has been entered into the station's corrective action program.</br>The licensee will notify the New York State Public Service Commission and the NRC Resident Inspector.</br>* * * RETRACTION ON 6/27/13 AT 1549 EDT FROM KROCK TO HUFFMAN * * * </br>This notification is being made to retract Event Notification #49043, which reported a condition that could have prevented the control of the release of radioactive material when the primary containment airlock inner door seal was found degraded concurrent with the outer door being open.</br>Further analysis by engineering of the actual conditions which were recorded when the airlock Type B leak rate test was being performed and calibration checks of the leak rate monitor instrumentation used for the test, has determined that the leakage through the degraded inner airlock door seal, when combined with the Appendix J As-Left Minimum Pathway Type B and C leak rates, remains below the Technical Specification Primary Containment As-Left Minimum Pathway Leakage Limit of 0.6 La. </br>Therefore, for the period in which the inner airlock door seal was degraded and the outer airlock door was open, the primary containment function to control the release of radioactive material was maintained and the initial notification per 10 CFR 50.72(b)(3)(v) is being retracted.</br>The licensee has notified the NRC Resident Inspector and the New York State Public Service Commission. R1DO (Ferdas) notified.rvice Commission. R1DO (Ferdas) notified.
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23 +
00:00:00, 27 June 2013 +
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>.
02:00:36, 2 March 2018 +
16:46:00, 16 May 2013 +
true +
false +
0.717 d (17.2 hours, 0.102 weeks, 0.0236 months) +
23:34:00, 15 May 2013 +
Primary Containment Airlock Non-Functional Due to Degraded Seal on Inner Door Concurrent with Personnel Passing Through the Outer Door +
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