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This letter is submitted in accordance wit … This letter is submitted in accordance with 10 C.F.R. 21.21(d)(3)(ii) with respect to a failure to comply with the specifications associated with two studs P/N 163392A00 and 192247A00 used in medium voltage HK circuit breakers that may be subject to failure due to hydrogen embrittlement due to incorrect processing during plating. These studs were manufactured at the ABB Medium Voltage Service facility in Florence, SC from steel rod, heat treated in-house, and then sent to Surtronics for zinc plating with chromate treatment, including hydrogen embrittlement relief baking immediately following plating. A total of 51 pieces of P/N 163392A00 and 104 pieces of P/N 192247A00 were plated by Surtronics.</br>* * * UPDATE FROM DAVID BROWN VIA FAX AT 1309 EDT on 4/27/12 * * *</br>The vendor has notified the affected licensees, removed all remaining studs from inventory and will be auditing Surtronics established process during the next finishing production run.</br>The licensees affected include EFH/Luminant, Progress Energy and TVA.</br>Notified R1DO (Jackson), R2DO (Musser), R3DO (Lara) and R4DO (Proulx).</br>* * * UPDATE FROM DAVID BROWN TO DONG PARK VIA FAX AT 1318 EST on 12/16/16 * * *</br>This (update) amends the previous 10CFR Part 21 Notification of 27 April 2012 that reported failed studs on 7.5 and 15 kV HK circuit breakers. This amendment is required to encompass a wider time period during which the stud (PIN: 163392A00) was sold for use in medium voltage HK circuit breakers. The previous report addressed orders between September 2011 and March 2012, but based upon a recent notification reported by TVA, our notification should have extended further in the past. Further research indicates that a shift in plating vendors in November 2010 is the likely starting point for this issue.</br>Notified R1DO (Schroeder), R2DO (Michel), R3DO (Dickson), R4DO (Kellar), and Part 21 group via email.4DO (Kellar), and Part 21 group via email. +
04:00:00, 9 April 2012 +
47,818 +
17:06:00, 9 April 2012 +
04:00:00, 9 April 2012 +
This letter is submitted in accordance wit … This letter is submitted in accordance with 10 C.F.R. 21.21(d)(3)(ii) with respect to a failure to comply with the specifications associated with two studs P/N 163392A00 and 192247A00 used in medium voltage HK circuit breakers that may be subject to failure due to hydrogen embrittlement due to incorrect processing during plating. These studs were manufactured at the ABB Medium Voltage Service facility in Florence, SC from steel rod, heat treated in-house, and then sent to Surtronics for zinc plating with chromate treatment, including hydrogen embrittlement relief baking immediately following plating. A total of 51 pieces of P/N 163392A00 and 104 pieces of P/N 192247A00 were plated by Surtronics.</br>* * * UPDATE FROM DAVID BROWN VIA FAX AT 1309 EDT on 4/27/12 * * *</br>The vendor has notified the affected licensees, removed all remaining studs from inventory and will be auditing Surtronics established process during the next finishing production run.</br>The licensees affected include EFH/Luminant, Progress Energy and TVA.</br>Notified R1DO (Jackson), R2DO (Musser), R3DO (Lara) and R4DO (Proulx).</br>* * * UPDATE FROM DAVID BROWN TO DONG PARK VIA FAX AT 1318 EST on 12/16/16 * * *</br>This (update) amends the previous 10CFR Part 21 Notification of 27 April 2012 that reported failed studs on 7.5 and 15 kV HK circuit breakers. This amendment is required to encompass a wider time period during which the stud (PIN: 163392A00) was sold for use in medium voltage HK circuit breakers. The previous report addressed orders between September 2011 and March 2012, but based upon a recent notification reported by TVA, our notification should have extended further in the past. Further research indicates that a shift in plating vendors in November 2010 is the likely starting point for this issue.</br>Notified R1DO (Schroeder), R2DO (Michel), R3DO (Dickson), R4DO (Kellar), and Part 21 group via email.4DO (Kellar), and Part 21 group via email. +
Has query"Has query" is a predefined property that represents meta information (in form of a <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Subobject">subobject</a>) about individual queries and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
00:00:00, 16 December 2016 +
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>.
01:43:34, 2 March 2018 +
17:06:00, 9 April 2012 +
Dong Park + and David Brown +
0.546 d (13.1 hours, 0.078 weeks, 0.0179 months) +
04:00:00, 9 April 2012 +
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.