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At 09:24 am on 08/27/03, a Control Room ac … At 09:24 am on 08/27/03, a Control Room access door latch was determined to be not fully engaging. The door and latch provide the following functions:</br>maintain the integrity of the Control Room boundary which is a design feature to maintain Control Room habitability following a design bases accident, and</br>provide a security barrier to restrict access into the Control Rom complex to only those personnel with preapproved security clearance.</br>With the latch not engaged, the door was not capable of performing these functions. The appropriate security contingencies were implemented, requiring posting of a Security Force Member at the door controlling access to the Control Room Complex. Technical Specification (TS) 3.0.3 was entered due to the inability of either Control Room ventilation system to maintain Control Room habitability, as required by TS 3.7.2.</br>At 10:20, the door latch was replaced to re-establish the integrity of the Control Room habitability boundary and TS 3.0.3 was exited. The ability of the latch to properly operate for access and egress was not established; access through the affected door remained restricted until repairs can be completed (there are additional doors to the Control Room that remain fully functional).</br>At 14:00, the door was again impaired for repair of the door latch. Full functionality of the door was restored at 14:41.</br>The NRC Resident Inspector was notified of this event by the licensee.</br>* * * RETRACTION AT 1143 EDT ON 10/22/03 FROM A. BRAEDY TO E. THOMAS * * *</br>At the time of the original notification the ability to maintain Control Room habitability, as required by TS 3.7.2 was not assured. Subsequent evaluation has determined that if a postulated accident had occurred during the time that the door latch was impaired, control room dose would be less than the acceptance criteria specified in 10CFR50.67 and Regulatory Guide 1.183 and bounded by our current analysis. The site boundary doses were never affected. The dose impact of the condition as it existed would be bounded by the current analysis. Thus, the safety function would have been fulfilled.</br>Notified R1DO (L. Doerflein)en fulfilled.
Notified R1DO (L. Doerflein)
13:24:00, 27 August 2003 +
40,107 +
15:22:00, 27 August 2003 +
13:24:00, 27 August 2003 +
At 09:24 am on 08/27/03, a Control Room ac … At 09:24 am on 08/27/03, a Control Room access door latch was determined to be not fully engaging. The door and latch provide the following functions:</br>maintain the integrity of the Control Room boundary which is a design feature to maintain Control Room habitability following a design bases accident, and</br>provide a security barrier to restrict access into the Control Rom complex to only those personnel with preapproved security clearance.</br>With the latch not engaged, the door was not capable of performing these functions. The appropriate security contingencies were implemented, requiring posting of a Security Force Member at the door controlling access to the Control Room Complex. Technical Specification (TS) 3.0.3 was entered due to the inability of either Control Room ventilation system to maintain Control Room habitability, as required by TS 3.7.2.</br>At 10:20, the door latch was replaced to re-establish the integrity of the Control Room habitability boundary and TS 3.0.3 was exited. The ability of the latch to properly operate for access and egress was not established; access through the affected door remained restricted until repairs can be completed (there are additional doors to the Control Room that remain fully functional).</br>At 14:00, the door was again impaired for repair of the door latch. Full functionality of the door was restored at 14:41.</br>The NRC Resident Inspector was notified of this event by the licensee.</br>* * * RETRACTION AT 1143 EDT ON 10/22/03 FROM A. BRAEDY TO E. THOMAS * * *</br>At the time of the original notification the ability to maintain Control Room habitability, as required by TS 3.7.2 was not assured. Subsequent evaluation has determined that if a postulated accident had occurred during the time that the door latch was impaired, control room dose would be less than the acceptance criteria specified in 10CFR50.67 and Regulatory Guide 1.183 and bounded by our current analysis. The site boundary doses were never affected. The dose impact of the condition as it existed would be bounded by the current analysis. Thus, the safety function would have been fulfilled.</br>Notified R1DO (L. Doerflein)en fulfilled.
Notified R1DO (L. Doerflein)
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100 +
00:00:00, 22 October 2003 +
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>.
02:24:55, 2 March 2018 +
15:22:00, 27 August 2003 +
true +
false +
0.0821 d (1.97 hours, 0.0117 weeks, 0.0027 months) +
13:24:00, 27 August 2003 +
URL"URL" is a <a href="/Special:Types/URL" title="Special:Types/URL">type</a> and predefined property provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a> to represent URI/URL values.