1997 wasn't a good year for Cook. The South Bend Tribune has archived a special selection of stories about it that they published in 2000. Fission on the Brink they call it.

June 30, 2007

New this week from NRC Public Document Room

* [2007-06-27] Request for Additional Information Re: Proposed Amendment on Bypass Test Capability of Certain Instrumentation ML071650508 2007-06-18 4 05000315 05000316 DPR-058 DPR-074 TAC MD3159 TAC MD3160 2007-06-18 2007-06-26 June 18, 2007 Mr. Mano K. Nazar Senior Vice President and Chief Nuclear Officer Indiana Michigan Power Company Nuclear Generation Group One Cook Place Bridgman, MI 49106 SUBJECT:

* [2007-06-26] DC Cook - Commitment for Backup Hydrogen Igniter Power Supply and Closure Process for Generic Issue 189 ML071500574 2007-06-15 4 05000315 05000316 DPR-058 DPR-074 GI 189 2007-06-15 2007-06-25 June 15, 2007 Mr. Mano K. Nazar Senior Vice President and Chief Nuclear Officer Indiana Michigan Power Company Nuclear Generation Group One Cook Place Bridgman, MI 49106 SUBJECT: DONALD C. COOK

June 23, 2007

New this week from NRC Public Document Room

* [2007-06-23] D.C. Cook, Unit 2, Request for Information and Notification of NRC Inspection ML071660376 2007-06-15 8 05000316 DPR-074 2007-06-15 2007-06-22 June 15, 2007 Mr. M. Nazar Senior Vice President and Chief Nuclear Officer Indiana Michigan Power Company Nuclear Generation Group One Cook Place Bridgman, MI 49106 SUBJECT: D.C. COOK NUCLEAR POWER PLANT UNIT 2 NOTIFI

* [2007-06-19] Donald C. Cook, Units 1 and 2 - Acting Branch Chief ML071440234 2007-06-08 3 05000315 05000316 DPR-058 DPR-074 2007-06-08 2007-06-18 June 8, 2007 Mr. Mano K. Nazar Senior Vice President and Chief Nuclear Officer Indiana Michigan Power Company Nuclear Generation Group One Cook Place Bridgman, MI 49106 SUBJECT: DONALD C. COOK NUCLEAR

June 9, 2007

New this week from NRC Public Document Room

* [2007-06-08] D.C. Cook Unit 1 - Draft RAI Questions for Discussion in a Telecon (TAC MD5297) ML071510338 2007-05-31 3 05000315 DPR-058 TAC MD5297 2007-05-31 2007-06-07 From: Peter Tam To: Scarpello, Michael; Simpson, Sue; Steinmetz, Keith Date: 05/31/2007 11:42:41 AM Subject: D.C. Cook Unit 1 - Draft RAI re. SBLOCA Reanalysis (TAC MD5297) Keith: We are reviewing your 3/29

* [2007-06-05] D. C. Cook, Units 1 & 2, Annual Environmental Operating Report ML071440018 2007-04-30 620 05000315 05000316 DPR-058 DPR-074 AEP:NRC:7541 2007-04-30 2007-06-04 INDIANA MICHIGAN POWER A unit of American Electric Power Indiana Michigan Power Cook Nuclear Plant One Cook Place Bridgman, MI 49106 AEP.com April 30, 2007 AEP:NRC:7541 DPR-58/74 Appendix

* [2007-06-05] DC Cook Power Plant, Unit 2, Notification of NRC Inspection and Request for Information 05/25/07 Ltr ML071450183 2007-05-25 6 05000316 DPR-074 2007-05-25 2007-06-04 May 25, 2007 Mr. Mano K. Nazar Senior Vice President and Chief Nuclear Officer Indiana Michigan Power Company Nuclear Generation Group One Cook Place Bridgman, MI 49106 SUBJECT: DONALD C. COOK NUCLEAR POWER PLANT, UNI

June 2, 2007

New this week from NRC Public Document Room

* [2007-06-02] Donald C. Cook Nuclear Plant, Units 1 and 2, Annual Radiological Environmental Operating Report for Period from January 1, 2006 through December 31, 2006 ML071430509 2007-05-14 321 05000315 05000316 DPR-058 DPR-074 10 CFR 50, Appendix I AEP:NRC:7691-02 2007-05-14 2007-06-01 INDIANA MICHIGAN POWER0 A unit of American Electric Power Indiana Michigan Power Cook Nuclear Plant One Cook Place Bridgman, MI 49106 AEPcom May 14, 2007 AEP:NRC:

* [2007-06-01] Donald C. Cook, Units 1 & 2, Technical Specification Change of Conditional Surveillance Frequency ML071420071 2007-05-11 16 05000315 05000316 DPR-058 DPR-074 AEP:NRC:6331-06 TAC MD0496 TAC MD0497 2007-05-11 2007-05-31 INDIANA MICHIGAN POWlER' A unit of American Electric Power Indiana Michigan Power Cook Nuclear Plant One Cook Place Bridgman, ML 49106 AEP.com May 11, 2007 AEP:NR

* [2007-05-31] Second Round of Draft RAI on the 9/15/07 Amendment Request ML071350660 2007-05-15 2 05000316 DPR-074 TAC MD3161 2007-05-15 2007-05-30 From: Peter Tam To: Scarpello, Michael; Simpson, Sue; Vasey, Bob Date: 05/15/2007 10:14:31 AM Subject: D.C. Cook Unit 2 - Second Round of Draft RAI on the 9/15/06 Amendment Request (TAC MD3161) Bob: We have

May 26, 2007

New this week from NRC Public Document Room

* [2007-05-26] 05/08/2007 Summary of Meeting With Indiana Michigan Power Company, LLC (I&M), On Status and Issues Related to DCCNP Implementation of Generic Letter 2004-02 ML071220258 2007-05-23 5 05000315 05000316 DPR-058 DPR-074 GL-04-002 TAC MC4679 TAC MC4680 2007-05-23 2007-05-25 May 23, 2007 LICENSEE: Indiana Michigan Power Company, LLC (I&M) FACILITY: D. C. Cook Nuclear Plant (DCCNP), Units 1 and 2 SUBJECT: SUMMARY OF MAY 8, 2007, MEETING WITH

* [2007-05-26] Donald C. Cook, Units 1 and 2 - 90-Day Response to Nuclear Regulatory Commission Generic Letter 2007-01: Inaccessible or Underground Power Cable Failures That Disable Accident Mitigation Systems or Cause Plant Transients ML071370358 2007-05-08 12 05000315 05000316 AEP:NRC:7054-02 GL-07-001 2007-05-08 2007-05-25 INDIANA MICHIGAN POWERE A unit of American Electric Power Indiana Michigan Power Cook Nuclear Plant One Cook Place Bridgman, MI 49106 AEP.com May 8, 2007 AEP:NRC:7054-02 10 CFR 50.54(f) Dock

* [2007-05-25] 05/07/07 Summary of Meeting with Entergy Operations, Inc. & Indiana Michigan Power Co. Re: Risk-informed Inservice Inspection Program/Code Case N-716 at Grand Gulf NS & Donald C. Cook NP, Units 1 & 2 (TAC MD3044, MD3137 & MD3138) ML071290203 2007-05-17 6 05000315 05000316 05000416 DPR-058 DPR-074 NPF-029 TAC MD3044 TAC MD3137 TAC MD3138 2007-05-17 2007-05-24 ML071290193+ May 17, 2007 LICENSEE: Entergy Operations, Inc. and Indiana Michigan Power Company FACILITY: Grand Gulf Nuclear Station, Unit 1 and Donal

* [2007-05-25] 05/07/07 Summary of Meeting with Entergy Operations, Inc. & Indiana Michigan Power Co. Re: Risk-informed Inservice Inspection Program/Code Case N-716 at Grand Gulf NP & Donald C. Cook NP, Units 1 & 2 (TAC MD3044, MD3137 & MD3138) - PKG ML071290193 2007-05-24 ML070960441+ ML071290203+ FNWEBNAVIGATE=1.0 SYSTEMTYPE=MEZZANINE DOCUMENTID=071290193 STARTPAGE=1 LIBRARYNAME= ML_adams^hqntad01

* [2007-05-23] Letter to NRC Chief Financial Officer, from Mark A. Peifer, Indiana Michigan Power, dated May 11, 2007, re: Withdrawal of Donald C. Cook Nuclear Plant as Pilot Plant for Implementation of Containment Spray Modifications for Post-LOCA Water Management ML071420251 2007-05-11 2 05000315 05000316 AEP:NRC:7170 GL-04-002 2007-05-11 2007-05-22 uNoIANA A unif of American Electric Power Indiana Michigan Power Cook Nuclear Plant One Cook Place Bridgman, MI 49106 AEPcom May 11, 2007 AEP:NRC:7170 10 CFR 170.11 Docket Nos.: 50-315 50-3 16

May 19, 2007

New this week from NRC Public Document Room

* [2007-05-15] D. C. Cook (EOC) Power Plant Assessment Letter (Report 05000315/2007-001; 05000316/2007001) ML070610179 2007-03-02 7 2007-03-02 2007-05-14

* [2007-05-15] 04/12/2007 Notice of Meeting With Indiana Michigan Power Company Re: D.C. Cook Plant Performance Annual Assessment for CY 2006. ML070870589 2007-03-21 4 2007-03-21 2007-05-14

* [2007-05-15] D.C. Cook Additional Draft RAI on 11/3/06 Application for Amendment re. RTD Bypass Loop. ML070660581 2007-03-07 3 2007-03-07 2007-05-14

* [2007-05-15] D.C. Cook Unit 2 - Alternative Regarding Use of Preemptive Weld Overlays on Certain Dissimilar Metal Welds (TAC No. MC9305). ML070460121 2007-03-01 12 2007-03-01 2007-05-14

* [2007-05-15] Press Release-III-07-013 - NRC to Discuss 2006 Performance Assessment for D.C. Cook Nuclear Power Plant. ML070960376 2007-04-06 2 2007-04-06 2007-05-14

* [2007-05-15] U.S. Dept of Homeland Security/D.C. Cook Nuclear Power Plant (NPP) Emergency Information Calendar for 2007 and Fermi 2 NPP Emergency Preparedness Booklet for 2006-2007/Letter. ML070510335 2007-02-07 1 2007-02-07 2007-05-14

* [2007-05-15] IR 05000315-06-007, IR 05000316-06-007, on 10/01/2006-12/31/2006, D. C. Cook Nuclear Power Plant, Units 1 and 2, Evaluation of Changes, Tests, or Experiments, Inservice Inspection Activities. ML070450022 2007-02-12 71 2007-02-12 2007-05-14

* [2007-05-15] IR 05000315-07-003, IR 05000316-07-003, on 03/31/2007; D. C. Cook Nuclear Power Plant, Units 1 and 2, Maintenance Effectiveness, Maintenance Risk Assessments and Emergent Work Control, Operability Evaluations. ML071290459 2007-05-09 48 05000315 05000316 DPR-058 DPR-074 IR-07-003 2007-05-09 2007-05-14 May 9, 2007 Mr. Mano K. Nazar Senior Vice President and Chief Nuclear Officer Indiana Michigan Power Company Nuclear Generation Group One Cook Place Bridgman, MI 49106 SUBJECT: D. C. COOK NU

May 12, 2007

New this week from NRC Public Document Room

* [2007-05-11] Donald C. Cook, Unit 2, Response to Request for Additional Information regarding Technical Specification Change for Reactor Trip on Low Turbine Oil Pressure. ML071220081 2007-04-20 6 05000316 AEP:NRC:7331 TAC MD3161 2007-04-20 2007-05-10 z INDIANA MICHIGAN POWER' A unit of American Electric Power Indiana Michigan Power Cook Nuclear Plant One Cook Place Bridgman, MI 49106 AEP.com AEP:NRC:7331 10 CFR 50.90 April 20, 2007 Docket No.: 50-3

May 5, 2007

New this week from NRC Public Document Room

* [2007-05-05] Comment (2) of G.M. Bradham on Draft NUREG/BR-0007, "Instructions for the Preparation and Distribution of Material Status Reports," Revision 6. ML071160098 2007-03-29 2 05000315 05000316 72FR13313 00002 NUREG/BR-0007 2007-03-29 2007-05-04 1, Doris Mendiola - Minor comments on BR-0007 Draft Page 1 J. I o i e d o a i o o m n s o R 0 0 r f Page.... ........ ... ... .. .... ......... ...... 1- From: To: Date: Subject: *211-P7

* [2007-05-05] Review of Response to Concerns Regarding Alloy 82/182 Butt Welds. ML071020526 2007-04-29 4 05000315 05000316 DPR-058 DPR-074 TAC MD4146 TAC MD4147 2007-04-29 2007-05-04 April 29, 2007 Mr. Mano K. Nazar Senior Vice President and Chief Nuclear Officer Indiana Michigan Power Company Nuclear Generation Group One Cook Place Bridgman, MI 49106 SUBJECT

* [2007-05-04] 5/2/2007 E-mail from Robert Vasey, American Electric Power, Licensee for D.C. Cook, Units 1 and 2, to B. Vaidya, NRC/NRR/DORL/LPL4, re May 7, 2007 Code Case N-716 Meeting. ML071230012 2007-05-02 2 05000315 05000316 N-716 TAC MD3137 TAC MD3138 2007-05-02 2007-05-03 ML071230009+ From: To: Date: 5/2/2007 1:50:54 PM Subject: May 7 Code Case N-716 Meeting Bhalchandra Attached are the draft responses to the requests for add

* [2007-05-04] Internal Flooding Study, Encl 3, for D.C. Cook, Units 1 and 2. ML071230018 2007-05-02 1 05000315 05000316 N-716 TAC MD3137 TAC MD3138 2007-05-02 2007-05-03 ML071230009+ Internal Flooding Study The DC Cook internal flooding study was developed to meet the ASME PRA Standard. Overall it meets Category II of the Standard with a number of supporti

* [2007-05-04] Report Regarding Overview of Each Portion of the 2006 Update to the Cook Plant Internal Flooding PRA Model. ML071230014 2007-05-02 6 05000315 05000316 N-716 TAC MD3137 TAC MD3138 2007-05-02 2007-05-03 ML071230009+ 1 This synopsis provides an overview of each portion of the 2006 update to the Cook plant internal flooding PRA model. It lists each calculation or report associated with the

* [2007-05-04] Response to NRC Request for Additional Information on DC Cook Nuclear Plant (CNP) Risk Informed ISI Application Per ASME Section XI Code Case N-716. ML071230013 2007-05-02 21 05000315 05000316 N-716 TAC MD3137 TAC MD3138 2007-05-02 2007-05-03 ML071230009+ Responses to NRC RAI on D C Cook Nuclear Plant (CNP) Risk Informed ISI Application per ASME Section XI Code Case N-716 PART 1 Ð First Set of Questions (1) The licensee request

* [2007-05-03] Additional Issues to Discuss in the 5/7/07 Meeting. ML071160415 2007-04-25 3 05000315 05000316 05000416 DPR-058 DPR-074 DPR-58 DPR-74 NPF-029 NPF-29 N-716 TAC MD3044 TAC MD3137 TAC MD3138 2007-04-25 2007-05-02 Accession No. ML071160415 From: Bhalchandra Vaidya To: FBURFOR@ENTERGY.COM; gdavant@entergy.com; MCRAWF1@entergy.com; mksca

* [2007-05-03] Completion of Review of Response to GL 2006-02, "Grid Reliability and Impact on Plant Risk and the Operability of Offsite Power." ML071070009 2007-04-24 4 05000315 05000316 DPR-058 DPR-074 GL-06-002 TAC MD0971 TAC MD0972 2007-04-24 2007-05-02 April 24, 2007 Mr. Mano K. Nazar Senior Vice President and Chief Nuclear Officer Indiana Michigan Power Company Nuclear Generation Group One Cook Place Bridgman, MI 491

* [2007-05-01] Donald C. Cook Nuclear Plant, Unit 1 - Alternative Regarding Use of Preemptive Weld Overlays on Certain Dissimilar Metal Welds. ML070720021 2007-04-26 17 05000315 DPR-058 TAC MD2119 2007-04-26 2007-04-30 April 26, 2007 Mr. Mano K. Nazar Senior Vice President and Chief Nuclear Officer Indiana Michigan Power Company Nuclear Generation Group One Cook Place Bridgman, MI 49106 SUBJECT: DONALD C. COOK NUCLEAR PLA

* [2007-05-01] Request for Additional Information Regarding Proposed Amendment Regarding Turbine Control Fluid Oil System Modification. ML071070594 2007-04-20 4 05000316 DPR-074 TAC MD3161 2007-04-20 2007-04-30 April 20, 2007 Mr. Mano K. Nazar Senior Vice President and Chief Nuclear Officer Indiana Michigan Power Company Nuclear Generation Group One Cook Place Bridgman, MI 49106 SUBJECT: D. C. COOK NUCLEAR PLANT,

April 28, 2007

New this week from NRC Public Document Room

* [2007-04-28] 04/12/2007 D C Cook, Public Meeting Summary to Dicuss the End-of-Cycle Plant Performance Assessment. ML071140195 2007-04-23 5 05000315 05000316 DPR-058 DPR-074 2007-04-23 2007-04-27 April 23, 2007 LICENSEE: Indiana Michigan Power Company FACILITY: Donald C. Cook Nuclear Plant SUBJECT: SUMMARY OF THE APRIL 12, 2007, PUBLIC MEETING TO DISCUSS THE D. C. COOK NUCLEAR PLANT END-OF-CYC

* [2007-04-28] ER 05000315-07-301(DRS), 05000316-07-301(DRS); 03/19/06 - 03/26/06; Donald C. Cook Nuclear Power Plant; Initial License Examination Report. ML071150480 2007-04-20 12 05000315 05000316 DPR-058 DPR-074 IR-07-301 2007-04-20 2007-04-27 April 20, 2007 Mr. Mano K. Nazar Senior Vice President and Chief Nuclear Officer Indiana Michigan Power Company Nuclear Generation Group One Cook Place Bridgman, MI 49106 SUBJECT: DONALD C.

* [2007-04-28] RO/SRO Initial Examination - D. C. Cook March 2007. ML071060320 2007-03-26 88 05000315 05000316 DPR-058 DPR-074 IR-07-301 2007-03-26 2007-04-27 U.S. Nuclear Regulatory Commission Site-Specific RO Written Examination Applicant Information Name: Date: March 26, 2007 Facility/Unit: D.C. Cook U1/U2 Region: I II III Y IV Reactor Type W C

* [2007-04-25] Closeout Letter for Response to Bulletin 2004-01. ML070950494 2007-04-17 4 05000315 05000316 DPR-058 DPR-074 BL-04-001 TAC MC3473 TAC MC3474 2007-04-17 2007-04-24 April 17, 2007 Mr. Mano K. Nazar Senior Vice President and Chief Nuclear Officer Indiana Michigan Power Company Nuclear Generation Group One Cook Place Bridgman, MI 491

* [2007-04-24] IR 05000315-07-002(DRS); 05000316-07-002(DRS); on 02/02/2007 - 03/02/2007; Donald C. Cook Nuclear Power Station, Units 1 and 2; Component Design Bases Inspection. ML071060236 2007-04-16 36 05000315 05000316 DPR-058 DPR-074 IR-07-002 2007-04-16 2007-04-23 April 16, 2007 Mr. Mano K. Nazar Senior Vice President and Chief Nuclear Officer Indiana Michigan Power Company Nuclear Generation Group One Cook Place Bridgman, MI 49106 SUBJECT: DONALD C.

April 21, 2007

New this week from NRC Public Document Room

* [2007-04-21] 05/07/2007 Notice of Meeting with Indiana Michigan Power Co & Entergy Operations, Inc. to Discuss Risk-Informed Inservice Inspection Program via ASME Code Case N-716 (TAC MD3044). ML070960441 2007-04-20 1 05000315 05000316 05000416 2007-04-20 2007-04-20 April 20, 2007 MEMORANDUM TO: Thomas G. Hiltz, Chief Plant Licensing Branch IV Division of Operating Reactor Licensing FROM: Bhalchandra K. Vaidya, Project Manager /RA/ Plant Licensing Branch IV Division of

* [2007-04-20] 05/08/2007 Notice of Meeting with D. C. Cook Regarding Generic Letter 2004-02, "Potential Impact of Debris Blockage on Emergency Recirculation During Design-Basis Accidents at Pressurized-Water Reactors". ML071060325 2007-04-17 5 05000315 05000316 DPR-058 DPR-074 GL-04-002 TAC MC4679 TAC MC4680 2007-04-17 2007-04-19 April 17, 2007 MEMORANDUM TO: L. Raghavan , Chief Plant Licensing Branch III-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation FROM: Peter

* [2007-04-20] Donald C. Cook, Units 1 and 2, Annual Radioactive Effluent Release Report, January 1, 2006, Through December 31, 2006. ML071010192 2007-03-30 244 05000315 05000316 AEP:NRC:7691-01 2007-03-30 2007-04-19 INDIANA MICHIGAN' POWERW A unit of American Electric Power Indiana Michigan Power Cook Nuclear Plant One Cook Place Bridgman, Ml 49106 AEPlcom March 30, 2007 AEP:NRC:7691-01 Docket Nos.: 50-315 50-316

* [2007-04-19] Donald C Cook, Units 1 and 2 - Nuclear Regulatory Commission Approval of Degraded Voltage Protection Backfit Implementation. ML071000266 2007-03-30 8 05000315 05000316 AEP:NRC:7321 2007-03-30 2007-04-18 Indiana Michigan Power INDIANA Cook Nuclear Plant MICHIGAN One Cook Place poElR ¨ Bridgman, MI 49106 XWER0AE~corn A unit of American Electric Power March 30,2007 AEP:NRC:7321 10 CFR 50.109 Docket Nos.: 5

* [2007-04-19] Donald C. Cook, Unit 1, Small Break Loss-of-Coolant Accident Evaluation Model Reanalysis. ML071000431 2007-03-29 62 05000315 AEP:NRC:7046 2007-03-29 2007-04-18 INDIANA MICHIGAN POWER0 A unit of American Electric Power Indiana Michigan Power Cook Nuclear Plant One Cook Place Bridgman, MV 49106 AERcom AEP:NRC:7046 10 CFR 50.46 March 29, 2007 Docket No.: 50-315 U. S. Nucle

* [2007-04-19] Donald C. Cook, Units 1 and 2 - Decommissioning Funding Status Report. ML071000279 2007-03-30 13 05000315 05000316 AEP:NRC:7075 2007-03-30 2007-04-18 INDIANA MICHIGAN PO WER A unit of American Electric Power March 30, 2007 Indiana Michigan Power Cook Nuclear Plant One Cook Place Bridgman, MI 49106 AERcom AEP:NRC:7075 10 CFR 50.75(0(1) Docket Nos.: 50-

* [2007-04-19] Donald C. Cook, Units 1 and 2, Annual Report of Property Insurance. ML071000292 2007-03-30 2 05000315 05000316 AEP:NRC:7054-01 2007-03-30 2007-04-18 INDIANA MICHIGAN POWERO A unit of American Electric Power March 30, 2007 Indiana Michigan Power Cook Nuclear Plant One Cook Place Bridgman, MI 49106 AERcom AEP:NRC:7054-01 10 CFR 50.54(w)(3) Docket No

* [2007-04-17] D. C. Cook, Unit 1, Correction of Administrative Error in Amendment No. 298 Regarding Steam Generator Tube Integrity (TAC No. MD2306). ML070930160 2007-04-06 3 05000315 DPR-058 TAC MD2306 2007-04-06 2007-04-16 ML071010023+ April 6, 2007 Mr. Mano K. Nazar Senior Vice President and Chief Nuclear Officer Indiana Michigan Power Company Nuclear Generation Group One Cook Place Bridgman, MI 49106 SUBJECT: DONALD C. COOK

* [2007-04-17] D. C. Cook, Unit 1, Technical Specification Page re: Correction of Administrative Error in Amendment No. 298, Steam Generator tube Integrity (TAC No. MD2306). ML071010097 2007-04-06 1 05000315 DPR-058 TAC MD2306 2007-04-06 2007-04-16 ML071010023+ RCS Operational LEAKAGE 3.4.13 ACTIONS (continued) CONDITION REQUIRED ACTION COMPLETION TIME C. Identified LEAKAGE not C.1 Reduce LEAKAGE to within 4 hours within limits for reasons limits. oth

February 27, 2007

Cook request (to allow reactor trip system and ESFA system instrumentation to be tested in bypass) in danger of failing acceptance review

DC Cook wants to allow reactor trip system (RTS) and engineered safety feature actuation system (ESFAS) instrumentation to be tested in bypass. The plant submitted an application about this to NRC, requesting amendment to tech specs, on September 15, 2006. NRC staff reviewed the application, and determined that insufficient information was provided. The following details are from an email from NRC to Cook, proposing that a conference call be scheduled for Cook to discuss the issues with NRC reviewer Hukam Garg.

The most notable omission, NRC told Cook, was the lack of information on the changes to the RTS and ESFAS systems to include the bypass capability. Page 5 of the submittal, titled Technical Analysis, states that: "Hardware changes necessary to be made to the NIS and Foxboro analog/digital protection system to facilitate testing in bypass will be implemented in accordance with 10 CFR 50.59." Standard Review Plan, Chapter 7, states that the review should include an evaluation of the protection system design against the requirements of ANSI/IEEE Std 279, or Reg. Guide 1.153, which endorses IEEE Std. 603, depending upon the applicant/licensees commitment regarding design criteria. The RTS review should address all topics identified as applicable by Table 7-1. Major design considerations that should be emphasized in the review of the RTS are:
* Design basis
* Single failure criterion
* Quality of components and modules
* Independence
* Defense-in-depth and diversity
* System testing and inoperable surveillance
* Use of digital systems

The same requirements are also applicable to ESFAS instrumentation. NRC noted that the application does not provide information showing how the bypass system capability meets all of the above guidance. Also, the application does not state that Cook has done the failure mode and effects analysis to determine if the failure of bypass system will not have any impact on accident analyses, or would not create new potential accidents. The current DC Cook licensing basis does not include any mass addition transients or accidents. As such, a change in the ESFAS or RTS system that creates the possibility for an inadvertent injection of water into the reactor coolant system (such as the inadvertent start of a charging pump), would require the licensing basis to include mass addition transients in the DC Cook licensing basis. If the licensing basis did not include these transients, neither the licensee nor the NRC could conclude that the proposed change poses no safety concern. There was no discussion on the brand and type of system, or the method used for the qualification of this system.

The email from NRC to DC Cook, dated February 15, 2007, is available as ADAMS ACN ML070460159.

Recent NRC inspections

* (released Oct 8) Cook emergency preparedness inspection rept 316-2005-11

* (released May 6) Cook report 50-315-2005-2

* Cook scrams report 50-316-2003-14

* Cook e-plan report 50-315-2003-11

* Cook report 50-315-2003-9

* Cook fish intrusion event of April 24, 2003 report 50-315-2003-8

* Cook report 50-315-2003-2

* Cook pump & sump failures followup report 50-315-2003-4

* Cook safeguards report 50-315-2003-3

* Cook report 50-315/2002-9

July 6, 2005 ACRS meeting - excerpts re: Cook license renewal application

* DC Cook - ice condensor design mod and maint discussion at ACRS meeting

* DC Cook - adding supplemental diesels to help with PRA numbers

* DC Cook - expanding sump strainer area from 85 ft2 to 2000 ft2

* License renewal - role of system walkdowns in assessing aging

* DC Cook - core damage frequency estimate updates (currently 4.28e-5)

March 31, 2005

Summary of Plant Status - January 1 through March 31, 2005

Unit 1 was operated at or near full power during the period until March 26, 2005, when the reactor was shut down for the Cycle 20 refueling outage (U1C20). Unit 1 was shut down in Mode 6 (Refueling) at the end of the period. On January 15, 2005, NRC approved an emergency license amendment to extend the 72-hour allowed outage time of TS 3.5.2 to preclude shutting down Unit 1 until the West charging pump could be restored to an operable status.

Unit 2 was operated at or near full power until January 22, 2005, when the reactor was shut down to troubleshoot and repair a malfunctioning control rod. Following repairs to an electrical cable connector for the control rod and some additional maintenance activities, the reactor was started up and synchronized to the grid on January 23, 2005. Unit 2 operated at or near full power for the remainder of the period.

[Source: B. Kemker (NRC, Senior Resident Inspector), et al. NRC Region III inspection report 50-315/2005-2, April 28, 2005, ACN ML051240475]

* 2005-03-28: Update 1-AEP shut Mich. Cook 1 nuke for refuel
Reuters

* 2005-03-28: AEP's Michigan Cook 1 nuke shut
Reuters

January 27, 2005

* Cook - only 16 tubes plugged since steam generators replaced in 1988, and only 4 indications since 1997

December 31, 2004

Summary of Plant Status - Oct - Dec 2004

Unit 1 operated at or near full power during the period.

Unit 2 operated at or near full power until October 2, 2004, when the reactor was shut down for the Cycle 15 refueling outage (U2C15). Following the outage, the unit was synchronized to the grid on November 9, 2004. Unit 2 then operated at or near full power until November 22, 2004, when the reactor was shut down to allow repair of a steam leak on the right moisture separator reheater drain tank and to allow determination of the location of an unidentified reactor coolant system leak, which was found to be from the pressurizer manway cover. Following repairs, the unit was synchronized to the grid on November 29, 2004. Unit 2 then operated at or near full power for the remainder of the period.

[Source: B. Kemker (NRC Senior Resident Inspector) et al., Inspection conducted October 1, 2004 through December 31, 2004 at D. C. Cook Nuclear Power Plant, Units 1 and 2, NRC Region III Inspection Report 50-315/2004-12, January 19, 2005 (ACN ML0502000390)]

June 3, 2004

Cook - metal fatigue section of license renewal application - draft RAI teleconference summary

Section 4.3.3 of the license renewal application (LRA) discusses Cook's evaluation of the impact of the reactor water environment on the fatigue life of components. The LRA references the fatigue sensitive component locations for an early vintage Westinghouse plant identified in NUREG/CR-6260, "Application of NUREG/CR-5999 Interim Fatigue Curves to Selected Nuclear Power Plant Components". The LRA indicates that the design usage factors provided in Table 5-98 of NUREG/CR-6260 were used for the evaluation of the charging nozzle, safety injection nozzle and RHR tee. The design usage factors were based on an evaluation of the Turkey Point facility, including a plant specific evaluation of the RHR piping and detailed finite element analyses of the charging and safety injection nozzles. NRC's draft Request for Additional Information (RAI) asks Cook to discuss the applicability of these analyses to the D. C. Cook facility. "The discussion should include a comparison of piping sizes and thicknesses, including the design of the thermal sleeves between D. C. Cook and Turkey Point. The discussion should also include a comparison of the number and type of design transients cycles between D. C. Cook and Turkey Point." During a May 6, 2004 teleconference, NRC requested Cook to consider the safety evaluations for Surry and North Anna to aid in the response to this D-RAI. Cook indicated that the question was clear. Note: a PDF copy of teleconference summary is available from NRC at: http://www.nrc.gov/reading-rm/adams/web-based.html, by entering accession number ML041530472

March 30, 2004

* Cook-2 - reactor trip from 100% power, apparently due to a surveillance test

December 22, 2003

* Cook-2 RCS leak prompts unusual event for ~ 1-1/2 hr

August 26, 2003

Cook gets new VP, from NMC

Chris Bakken resigned to return to PSEG earlier this month. American Electric Power has hired Nuclear Management Co. (NMC) Senior VP Mano K. Nazar to replace him. Mr. Nazar will be senior vice president and chief nuclear officer, effective October 1. Before joining NMC, Mr. Nazar worked twenty years for Duke Power, including a stint as plant manager at Oconee. He will report to Bob Powers, AEP's executive vice president - generation. In addition to his Cook duties, Mr. Nazar will be responsible for oversight of AEP's 25% share of South Texas Project. In announcing the hiring, Mr. Powers said that "Mano ... has established a track record as a hands-on leader who can achieve excellence from the people, processes and equipment at a nuclear plant." [Source: American Electric Power press release, AEP Names Nazar to Head Nuclear Operations, August 26, 2003]

August 6, 2003

* Cook - license renewal application expected to be ready in November, new heads planned

July 18, 2003

'Heart of Cook' college scholarships - Six high school graduates were recipients of the $5,000 Heart of Cook Scholarships presented by American Electric Power's Cook Nuclear Plant through the Berrien Community Foundation. [Ref: Today's Spotlights, South Bend Tribune, July 18, 2003]

May 19, 2003

Cook commits to repairing 'craze cracking' indications on head penetration

Cook plant reported this morning to NRC about cracks discovered in February 2002. The cracks are on a vessel head penetration, and were described by Cook thusly: "... five small, shallow indications ... closely spaced ... initial calculations showed a crack depth of 0.117 inches." The company concluded there was "no through-wall leakage" and "the reactor coolant pressure boundary remains intact."

When the cracking was evaluated in 2002, the plant concluded it was not significant enough to warrant repairs. The cracking has "not shown any significant growth" since then. The plant had the opportunity to check the cracks again because both units are still shut down since the April 24 fish story.

[Source: Reuters, AEP finds cracks on Mich. Cook 2 nuke vessel head, May 19, 2003]

May 5, 2003 - D.C. Cook's application to increase it's rated power output to 1108 MWe was approved. The plant expects to boost output before month's end. This represents an 18 MWe uprate -- about 1.5%. The main basis for the uprate was the increased accuracy of measurements of feedwater flow. The NRC press release notes that the agency's request for public comment published in Federal Register resulted in no public comments.

April 24-25, 2003 - Event Report - Fish story - a bevy of fish at intake screens degraded flow to turbine, prompting manual reactor trip, and to EDGs, prompting all to be declared inoperable. The Alert lasted about 25 hours.