View source for ML17331A753

{{Adams
| number = ML17331A753
| issue date = 07/02/1981
| title = Forwards Addl Info on Hydrogen Mitigation & Control, Including Containment Internal Pressure Capacity,Dc Cook Nuclear Generating Station,Phase II - Probabilistic Evaluation. Eight Aperture Cards Are Available in PDR
| author name = Hunter R
| author affiliation = INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA &amp; MICHIG
| addressee name = Denton H
| addressee affiliation = NRC OFFICE OF NUCLEAR REACTOR REGULATION (NRR)
| docket = 05000315, 05000316
| license number = 
| contact person = 
| document report number = AEP:NRC:00500E, AEP:NRC:500E, NUDOCS 8107080243
| package number = ML17319A950
| document type = CORRESPONDENCE-LETTERS, INCOMING CORRESPONDENCE, UTILITY TO NRC
| page count = 7
}}

=Text=
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Fg                                                    INFORMATION DISTRIBUTION                        YSTEM     (RIDS)
ACCESSION'BR:8107080243>>                             DOC ~ DATE! 81/07/02                   NOTARIZED:" NO                DOCKET-'
FACIL::50<<.315 Donal d C; Cook Nucl ear Powe'r>> P)ant~ Unit 1~ Indiana 50-316 Donald                C'.       Cook Nuclear Power>>    Plant~ Unit                      2'~  Indiana    L 0 AUTH', NAME~        'UTHOR                      AFF ILIATION HUNTER.g R'+ S ~                  Indiana        L  Michigan E~lectric Co.,
RECIP'eiVAMEl                     REC'IPIENT AFFILIATION DENTONgH',RE                     Office>> of Nuclear Reactor~ Regulationg Dir ector>>
SUBJECT;: Forwards                 addi info. on hydrogen mitigation 8 controls including "Containment Inte'mal Pressure'apacity~DC                                                   Cook Nuclear Generation, Stat'ion~phase II - Probabilistic 05000316'EGULAT Evaluation;"
DISTRIBUTION CODE':, A001S                        'COPIES RECEI VED: L<TR                   'NCL-"         'IZE:
TITLE'. General                Distr ibution for>> af ter~ Issuance! of Oper~ting, License NOTES: ILE:3>> copies all materials                                                                                       05000315 Send 3      copies of a) l                  material'o    ILE'.
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INDIANA L MICHIGAN ELECTRIC COMPANY P   O. BOX 18 BOWLING GR E EN STATION NEW YORK, N. Y 10004
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July 2,  1981 AEP:NRC:00500E yX-gp!
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Donald C. Cook Nuclear Plant Unit Nos.           1  and 2 Docket Nos. 50-315 and 50-316 License Nos. DPR-58 and DPR-74 Hydrogen Mitigation and Control Studies Ago Mr. Harold R. Denton,         Director Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. C. 20555

==Dear Mr. Denton:==

This   letter    and   its attachments  provide additional information on Hydrogen   Mitigation      and Control   for the   Donald C. Cook Nuclear Plant.
The information submitted herein supplements our previous transmittals on this topic and fulfills the commitments made in our AEP:NRC:0500C letter   dated May 29, 1981.
Attachment No.       1  contains supplementary information     on  the Distributed Ignition   System (DIS), instrument room isolation, and Containment Air Recirculation/Hydrogen Skimmer System fan survivability. Attachment No. 2 contains the preliminary results of a Cook Plant analysis performed with the modified CLASIX computer code. Attachment No. 3 contains a report on  the probabilistic analysis of the calculated limiting pressure capacity of the   Cook Plant containment.        Attachment No. 4 contains modified pages for the DIS Technical Specifications previously submitted. These changes have been reviewed by the PSNRC and'.will be reviewed by AEPSC's NSDRC at their next meeting. As requested during a telephone conversation with members of your staff, drawings of the crane wall are attached to Mr. S. Miner's copy of this transmittal as Attachment 5.
The  Unit      DIS   will be operational     by September  1, 1981.                 i 1
                                                                                           )0S Very  truly yours, (Jr
                                                                   . Hunter Vice President Attachments (cc: attached) 8107080>43 PDR Aogc K 8 702 p          05000315 PDR

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Hr. Harold   R. Denton                           AEP:NRC:00500E cc: 'ohn    E. Dolan R. Pl. Jurgensen G. Charnoff R. C. Cal 1 en D. V. Shaller   Bridgman Region   III Resident  Inspector - Bridgman

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