ENS 49940
ENS Event | |
|---|---|
04:00 Mar 21, 2014 | |
| Title | Part 21 - Sbm Selector Switches Contact Assembly Unplanned Manufacturing Change |
| Event Description | The following is an excerpt from a fax received from Unified Controls International (UCI):
...there was a significant manufacturing process change to the General Electric SBM series switches in 2009. The high resistance across switch contacts in the GE SBM switches could lead to a failure of the switch to change state when required. Concerns have been raised regarding tin plated movable contacts used for make or break service and in use without protective lubrication. UCI is not capable to complete an evaluation of the affect that this change may have on in storage SBM switches or already installed SBM switches that were provided to the customers on the purchase orders listed in section [below]. UCI does not know the storage conditions, in service environmental conditions or in service cycling rates of the switches or how the each of these items may affect the change in contact resistance. Each affected customer needs to evaluate their in storage and in service switches and determine if the change in contact material could possibly create a safety hazard and effect the ability of the switches to perform in their safety related application. The applicable purchase orders are: Duke Energy, Purchase Orders: 131116,133980, 147875,129193,130989 (Non-Safety Related), 133920, 148974 (Non-Safety Related), 152090 (Non Safety Related), 133972, 169525 Antung Trading Company, Purchase Order: PP120210 CFE, Purchase Order: 700327408 Fluor, Purchase Order: A3PB-6-0016-00Q1 |
| Where | |
|---|---|
| United Controls International Norcross, Georgia (NRC Region 1) | |
| Organization: | United Controls International |
| Reporting | |
| 10 CFR 21.21(a)(2), Interim Report for Comply or Defect in Component | |
| Time - Person (Reporting Time:+4.77 h0.199 days <br />0.0284 weeks <br />0.00653 months <br />) | |
| Opened: | Korina Looft 08:46 Mar 21, 2014 |
| NRC Officer: | Charles Teal |
| Last Updated: | Mar 21, 2014 |
| 49940 - NRC Website | |
United Controls International with 10 CFR 21.21(a)(2), Interim Report for Comply or Defect in Component | |
WEEKMONTHYEARENS 562932022-09-07T17:00:0007 September 2022 17:00:00
[Table view]10 CFR 21.21(a)(2), Interim Report for Comply or Defect in Component Part 21 - Power Supply Failures ENS 563882022-09-07T05:00:0007 September 2022 05:00:00 10 CFR 21.21(a)(2), Interim Report for Comply or Defect in Component Part 21 - Deviation to Qualified Design ENS 562092022-09-07T04:00:0007 September 2022 04:00:00 10 CFR 21.21(a)(2), Interim Report for Comply or Defect in Component Part 21 - Primary/Secondary Power Supply Failures ENS 512432015-06-03T04:00:0003 June 2015 04:00:00 10 CFR 21.21(a)(2), Interim Report for Comply or Defect in Component Potential Part 21 - Allen Bradley Failure to Document Design Change ENS 509352015-01-30T04:00:00030 January 2015 04:00:00 10 CFR 21.21(a)(2), Interim Report for Comply or Defect in Component Part-21 Notification - Sense and Transfer Module Resistive Short ENS 503312014-06-04T04:00:0004 June 2014 04:00:00 10 CFR 21.21(a)(2), Interim Report for Comply or Defect in Component Part 21 Interim Report - Temperature Switch Set Points Out of Calibration ENS 500132014-03-25T04:00:00025 March 2014 04:00:00 10 CFR 21.21(a)(2), Interim Report for Comply or Defect in Component Part 21 - Potential Defect in General Electric Sb1 Switches and Hea Relays ENS 499402014-03-21T04:00:00021 March 2014 04:00:00 10 CFR 21.21(a)(2), Interim Report for Comply or Defect in Component Part 21 - Sbm Selector Switches Contact Assembly Unplanned Manufacturing Change 2022-09-07T05:00:00 | |