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On 04/04/04 at 14:57 hours, the "E" Emerge … On 04/04/04 at 14:57 hours, the "E" Emergency Diesel Generator unexpectedly started in the emergency mode of operation during performance of Unit 1 LOCA/LOOP surveillance testing. The diesel generator started in response to a false loss of offsite power signal that occurred after an electrical test jumper was incorrectly installed in panel 1A201. While the procedure directed installation of the jumper across the field side of states links T5-10 and T5-12, the jumper was instead installed across the panel side of the links. When link T5-10 was opened per procedural direction, a false LOOP signal was sent to the "E" diesel generator start circuit. The "E" emergency diesel generator successfully started and properly responded to the complete train actuation signal. The diesel was shutdown following the incident. No other plant equipment was affected by this jumper use error. At the time of this event, Unit 1 was in Mode 5 and Unit 2 was in Mode 1. Both Units continued in Modes 5 and 1, respectively. Surveillance testing was successfully completed on 04/05/04.</br>The consequences of this event were limited to the unplanned start of the "E" emergency diesel generator. The diesel generator started and functioned in accordance with its design. This event comprises an invalid actuation of an emergency AC electrical power system and is therefore being reported in accordance with 10 CFR 50.73(a)(2)(iv)(A) as a 60- day telephone notification per the provision of 10 CFR 50.73 (a)(1).</br>The NRC Resident Inspector was notified of the 60- day report notification by the licensee.- day report notification by the licensee. +
18:57:00, 4 April 2004 +
40,766 +
15:58:00, 21 May 2004 +
18:57:00, 4 April 2004 +
On 04/04/04 at 14:57 hours, the "E" Emerge … On 04/04/04 at 14:57 hours, the "E" Emergency Diesel Generator unexpectedly started in the emergency mode of operation during performance of Unit 1 LOCA/LOOP surveillance testing. The diesel generator started in response to a false loss of offsite power signal that occurred after an electrical test jumper was incorrectly installed in panel 1A201. While the procedure directed installation of the jumper across the field side of states links T5-10 and T5-12, the jumper was instead installed across the panel side of the links. When link T5-10 was opened per procedural direction, a false LOOP signal was sent to the "E" diesel generator start circuit. The "E" emergency diesel generator successfully started and properly responded to the complete train actuation signal. The diesel was shutdown following the incident. No other plant equipment was affected by this jumper use error. At the time of this event, Unit 1 was in Mode 5 and Unit 2 was in Mode 1. Both Units continued in Modes 5 and 1, respectively. Surveillance testing was successfully completed on 04/05/04.</br>The consequences of this event were limited to the unplanned start of the "E" emergency diesel generator. The diesel generator started and functioned in accordance with its design. This event comprises an invalid actuation of an emergency AC electrical power system and is therefore being reported in accordance with 10 CFR 50.73(a)(2)(iv)(A) as a 60- day telephone notification per the provision of 10 CFR 50.73 (a)(1).</br>The NRC Resident Inspector was notified of the 60- day report notification by the licensee.- day report notification by the licensee. +
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00:00:00, 21 May 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>.
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46.876 d (1,125.02 hours, 6.697 weeks, 1.541 months) +
18:57:00, 4 April 2004 +
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