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The following is a synopsis of informationThe following is a synopsis of information provided by MPR Associates, Inc. (MPR) via fax:</br>On August 9, 2024, MPR received information that electrical contactors (Models AF80 and AF116) provided by Asea Brown Boveri Ltd. (ABB) contain a microcontroller. The fact that these contactors contain a microcontroller was not included in MPR's analysis during their commercial grade dedication process. Two contactors were supplied to Beaver Valley Power Station (ABB AF116-30-11-13) where one was installed in the excitation system for one emergency diesel generator. Five contactors were supplied to Davis-Besse Nuclear Power Station (ABB AF116-30-11-13), but none were installed.</br>MPR is currently working to provide information to support continued use of the installed contactors. MPR is also working to identify a replacement contactor that is suitable for the application.</br>Responsible MPR officer:</br>Robert Coward, Principal Officer</br>MPR Associates, Inc.</br>320 King Street</br>Alexandria, VA 22314</br>703-519-0200g Street Alexandria, VA 22314 703-519-0200  +
04:00:00, 9 August 2024  +
57,363  +
11:38:00, 4 October 2024  +
04:00:00, 9 August 2024  +
The following is a synopsis of informationThe following is a synopsis of information provided by MPR Associates, Inc. (MPR) via fax:</br>On August 9, 2024, MPR received information that electrical contactors (Models AF80 and AF116) provided by Asea Brown Boveri Ltd. (ABB) contain a microcontroller. The fact that these contactors contain a microcontroller was not included in MPR's analysis during their commercial grade dedication process. Two contactors were supplied to Beaver Valley Power Station (ABB AF116-30-11-13) where one was installed in the excitation system for one emergency diesel generator. Five contactors were supplied to Davis-Besse Nuclear Power Station (ABB AF116-30-11-13), but none were installed.</br>MPR is currently working to provide information to support continued use of the installed contactors. MPR is also working to identify a replacement contactor that is suitable for the application.</br>Responsible MPR officer:</br>Robert Coward, Principal Officer</br>MPR Associates, Inc.</br>320 King Street</br>Alexandria, VA 22314</br>703-519-0200g Street Alexandria, VA 22314 703-519-0200  +
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00:00:00, 4 October 2024  +
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>.
11:20:17, 7 October 2024  +
11:38:00, 4 October 2024  +
56.318 d (1,351.63 hours, 8.045 weeks, 1.851 months)  +
04:00:00, 9 August 2024  +
Part 21 - Non Compliant Contactors  +
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