Morning Report for March 25, 1999
Headquarters Daily Report MARCH 25, 1999 *************************************************************************** REPORT NEGATIVE NO INPUT ATTACHED INPUT RECEIVED RECEIVED HEADQUARTERS X REGION I X REGION II X REGION III X REGION IV X PRIORITY ATTENTION REQUIRED MORNING REPORT - HEADQUARTERS MARCH 25, 1999 Licensee/Facility: Notification: MR Number: H-99-0029 Additional Information Date: 03/25/99 Subject: ABB Control Rod Blades in BWRs Discussion: The Hope Creek licensee recently identified a blister on an Asea Brown Boveri (ABB) Model CR-82 control rod blade (Morning Report 1-99-0010). This blade was installed in the core in the fall of 1992. This problem is currently being evaluated. Additional historical information on control rod blades of this design is presented below. On March 5, 1994, during a refueling outage at Hope Creek, the licensee found crack indications in six other CR-82 control rod blades. At that time, the licensee replaced these six blades with one CR-82 blade (the last in spares inventory) and five new ABB CR-82M blades of more crack-resistant design. At that time, the Hope Creek licensee informed the NRC inspector that none of the blade inspection findings were unexpected, based on previous CR-82 experiences at other U.S. and foreign plants. Other operating U.S. plants using ABB CR-82 blades include: Millstone 1, Dresden 2 and 3, Quad Cities 1, La Salle, Fitzpatrick, and Hatch 1. On April 18, 1991, at Millstone 1, the licensee reported a 1.5-inch crack in the cruciform edge 10 inches from the top of a control blade. The licensee determined that the crack was acceptable and would not degrade the ability to shut down the reactor or maintain it in a shutdown condition. ABB determined that extensive cracking of such nature would affect the mechanical integrity of the control rod blades. Loss of boron, being a slow process, would affect a localized region of the core; however, loss of boron from this crack would have negligible effect on shutdown margin. On December 17, 1989, at Dresden 3, the licensee reported visible cracks on 3 of 8 blades, the first time that ABB control rod blades had shown cracking in the U.S. Previous indications were observed in Europe. From the European experience, such cracking had not presented any immediate safety significance with respect to shutdown margin or mechanical integrity. Though not unexpected, this cracking occurred earlier than anticipated. Contact: Vern Hodge (301) 415-1861 E-mail: cvh@nrc.gov _ HEADQUARTERS MORNING REPORT PAGE 2 MARCH 25, 1999 MR Number: H-99-0030 NRR DAILY REPORT ITEM GENERIC COMMUNICATIONS Subject: INFORMATION NOTICE NO. 99-08 ISSUED NRC Information Notice 99-08: Urine Specimen Adulteration, dated March 26, 1999 The U.S. Nuclear Regulatory Commission (NRC) is issuing this information notice to remind addressees of a recent attempt by an employee to circumvent fitness-for-duty (FFD) testing. Technical contacts: Ronald J. Albert, NRR Dennis Gordon, NRR 301-415-3216 301- 415-1162 E-mail: rja@nrc.gov E-mail: dxg@nrc.gov _ REGION III MORNING REPORT PAGE 3 MARCH 25, 1999 Licensee/Facility: Notification: Northern States Power Co. MR Number: 3-99-0021 Prairie Island 1 2 Date: 03/25/99 Welch,Minnesota Company press release Dockets: 50-282,50-306 PWR/W-2-LP,PWR/W-2-LP Subject: MERGER Discussion: Northern States Power Company (NSP), based in Minneapolis, Minnesota, and New Century Energies, based in Denver, Colorado, today announced that they have entered into a definitive merger agreement. The new company, to be named later, will be headquartered in Minneapolis and certain key business units or operations will be based in Wisconsin, Denver, and Amarillo, Texas. Company officials said that the merger would provide both the combined company and its operating units the scale necessary to remain competitive in a changing industry marketplace. James J. Howard, President, Chairman, and Chief Executive Officer (CEO) of NSP, will serve as Chairman of the holding company for the first full year of operations. Wayne H. Brunetti, vice chairman, president, and Chief Operation Officer of New Century, will be President and CEO upon closing and will assume the responsibilities as Chairman upon Howard's retirement. The merged company will serve about 3 million electrical customers and approximately 1.5 million natural gas customers in 12 states. The company will also serve about 2 million electrical and 400,000 natural gas customers in the United Kingdom. The merger is expected to take about 12 to 18 months to complete and will require the approval of shareholders as well as approval or regulatory review by SEC, FERC, FTC, DOJ, FCC , NRC, and state regulators in nine of the states currently served by the companies. Regional Action: For information only Contact: Roger Lanksbury (630)829-9631 _
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