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Following calibration of the refueling wat … Following calibration of the refueling water storage tank (RWST) level indication, the as-left Control Room level instrument indicated 35.3 feet in the RWST. Tech Spec required level is 35.4 feet. Alternate indication including the local level indicator and the absence of a low RWST level alarm indicated adequate RWST level. A one hour Tech Spec AOT (Allowed Outage Time) was entered at 2324 EDT on 8/04/2004. Indicated level was restored to 35.4 feet at 0013 EDT on 08/05/04 and the AOT exited.</br>This event is being reported under 10 CFR.50.72(b)(3)(v)(D) as the indicated level of 35.3 feet could potentially constitute an event or condition which at the time of discovery could have prevented the fulfillment of the safety function of systems required to mitigate the consequences of an accident.</br>Indicated level was restored to 35.4 feet by adding water to the RWST. Licensee is investigating the initial calibration on the level indicator.</br>Licensee notified the NRC Resident Inspector.</br>* * * RETRACTION FROM BRIAN ROKES TO W. GOTT AT 1658 EDT ON 8/5/04 * * *</br>Indian Point Unit 3 is withdrawing the 8-hour non-emergency notification made on August 5, 2004, at 0658 hours (EN Log No. 40925). The notification on August 5, reported an event or condition that could have prevented fulfillment of a safety function (10CFR50.72(b)(3)(v)(D)). After calibration of the Refueling Water Storage Tank (RWST) level indication (LT-920), on August 4, 2004, the Control Room As-Left level instrument indicated 35.3 feet in the RWST. The Technical Specification (SR 3.5.4.2) required level is 35.4 feet. Alternate level indication including a local level indicator and the absence of a low RWST level alarm provided indication of adequate RWST level. The one-hour Allowed Outage Time (AOT) of TS 3.5.4.C was entered at 2324 hours, on August 4, 2004. Water was added to the RWST and indicated RWST level in the Control Room was restored to 35.4 feet at 0013 hours, on August 5, 2004, and the TS AOT exited.</br>Subsequently, a calibration check of the level instrument was performed on August 5, 2004, and the instrument failed the calibration. The instrument was declared inoperable and the 7-day AOT of TS 3.5.4.13 was entered at 1231 hours. The notification is being retracted based on the engineering conclusion that the out of spec level indication was due to a failed level instrument. The RWST level was within spec as indicated by alternate level Indication including a local level indicator and absence of a low level alarm. These alternate level indication instruments are operable and within calibration. Therefore, Operations concluded the condition did not represent a RWST level below minimum TS level and the safety function of systems required to mitigate the consequences of an accident was met.</br>Notified R1DO (Shanbaky) and NRR (Imbro).
Notified R1DO (Shanbaky) and NRR (Imbro).
03:24:00, 5 August 2004 +
40,925 +
06:58:00, 5 August 2004 +
03:24:00, 5 August 2004 +
Following calibration of the refueling wat … Following calibration of the refueling water storage tank (RWST) level indication, the as-left Control Room level instrument indicated 35.3 feet in the RWST. Tech Spec required level is 35.4 feet. Alternate indication including the local level indicator and the absence of a low RWST level alarm indicated adequate RWST level. A one hour Tech Spec AOT (Allowed Outage Time) was entered at 2324 EDT on 8/04/2004. Indicated level was restored to 35.4 feet at 0013 EDT on 08/05/04 and the AOT exited.</br>This event is being reported under 10 CFR.50.72(b)(3)(v)(D) as the indicated level of 35.3 feet could potentially constitute an event or condition which at the time of discovery could have prevented the fulfillment of the safety function of systems required to mitigate the consequences of an accident.</br>Indicated level was restored to 35.4 feet by adding water to the RWST. Licensee is investigating the initial calibration on the level indicator.</br>Licensee notified the NRC Resident Inspector.</br>* * * RETRACTION FROM BRIAN ROKES TO W. GOTT AT 1658 EDT ON 8/5/04 * * *</br>Indian Point Unit 3 is withdrawing the 8-hour non-emergency notification made on August 5, 2004, at 0658 hours (EN Log No. 40925). The notification on August 5, reported an event or condition that could have prevented fulfillment of a safety function (10CFR50.72(b)(3)(v)(D)). After calibration of the Refueling Water Storage Tank (RWST) level indication (LT-920), on August 4, 2004, the Control Room As-Left level instrument indicated 35.3 feet in the RWST. The Technical Specification (SR 3.5.4.2) required level is 35.4 feet. Alternate level indication including a local level indicator and the absence of a low RWST level alarm provided indication of adequate RWST level. The one-hour Allowed Outage Time (AOT) of TS 3.5.4.C was entered at 2324 hours, on August 4, 2004. Water was added to the RWST and indicated RWST level in the Control Room was restored to 35.4 feet at 0013 hours, on August 5, 2004, and the TS AOT exited.</br>Subsequently, a calibration check of the level instrument was performed on August 5, 2004, and the instrument failed the calibration. The instrument was declared inoperable and the 7-day AOT of TS 3.5.4.13 was entered at 1231 hours. The notification is being retracted based on the engineering conclusion that the out of spec level indication was due to a failed level instrument. The RWST level was within spec as indicated by alternate level Indication including a local level indicator and absence of a low level alarm. These alternate level indication instruments are operable and within calibration. Therefore, Operations concluded the condition did not represent a RWST level below minimum TS level and the safety function of systems required to mitigate the consequences of an accident was met.</br>Notified R1DO (Shanbaky) and NRR (Imbro).
Notified R1DO (Shanbaky) and NRR (Imbro).
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100 +
00:00:00, 5 August 2004 +
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>.
22:42:50, 24 September 2017 +
06:58:00, 5 August 2004 +
true +
false +
0.149 d (3.57 hours, 0.0212 weeks, 0.00489 months) +
03:24:00, 5 August 2004 +
TS-3.5.4.C + and TS-3.5.4 +
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.