View source for 05000416/LER-1983-011, Updated LER 83-011/99X-2:on 830103-24,fire-rated Barriers in Control & Auxiliary Bldgs Opened to Perform Planned Maint.Fire Watches Established.All Fire Barriers Restored

{{Adams
| number = ML20080F090
| issue date = 09/08/1983
| title = Updated LER 83-011/99X-2:on 830103-24,fire-rated Barriers in Control & Auxiliary Bldgs Opened to Perform Planned Maint.Fire Watches Established.All Fire Barriers Restored
| author name = Byrd R, Dale L
| author affiliation = MISSISSIPPI POWER &amp; LIGHT CO.
| addressee name = Oreilly J
| addressee affiliation = NRC OFFICE OF INSPECTION &amp; ENFORCEMENT (IE REGION II)
| docket = 05000416
| license number = 
| contact person = 
| document report number = AECM-83-0556, AECM-83-556, LER-83-011-99X, LER-83-11-99X, NUDOCS 8309190155
| document type = LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT
| page count = 5
}}
{{LER
| Title = Updated LER 83-011/99X-2:on 830103-24,fire-rated Barriers in Control & Auxiliary Bldgs Opened to Perform Planned Maint.Fire Watches Established.All Fire Barriers Restored
| Plant = 
| Reporting criterion = 
| Power level = 
| Mode = 
| Docket = 05000416
| LER year = 2083
| LER number = 11
| LER revision = 
| Event date = 
| Report date = 
| ENS = 
| abstract = 
}}

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l asmC Pontsass Update Report - Previous Report Dates 2-3-83 & 4-20-83u.s.esucLEAa ntruLATonV CORAhtiSSiON LICENSEE EVENT REPORT                   Attachment to AECM-83/0556                         f
                             -                                                                               Page 1 of 3
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0           IFrom Januarv 3 to January 24. 1983. certain fire rated barriers in the                                                               I rau IControl Buildino and Auxiliary Buildina were opened to perform planned                                                                         1 0 4        Imaintenance activities. Fire watches were established in accordance                                                                   1 The event had no affect on the health and safety                                              l 0 s lwith T.S.3.7.7.a.
lof the oublic and did not constitute a threat to olant safety.                                                           This is 1
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,     @ IThe attached list of fire barriers were omened to route cables in All fire barriers                        1 l         1 1       laccordance with maintenance work authorizations.
This is a final report.                                                                    I i         thave been restored.
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* 8309190155 830908                                                 NRC USE ONLY PueuSTv otsCaiPTioN @                          PDR ADOCK 05000416 2 o essuEo N *M                                           S                           PDR                        I    l l l l l l 1 1 l l I l l :i a se                         so a i                               NAME OF PfeEPARER on hd                                   PHONE:

Attachment to JEN)                                                                           AECM-83/0556 Page 2 of 3 SUPPLEMENTARY INFORMATION TO LER 83-011/99 X-2 Mississippi Power &_ Light Company Grand Gulf Nuclear Station - Unit 1
            . Docket No. 50-416 Technical Specification Involved: 3.7.7 Reported Under Technical Specification: 3.7.7.a. 6.9.2 Event-Narrative:
This fs an update to previous-reports submitted on February 3, 1983, and April 20, 1983. The condition reported ~ included multiple events of planned entrance into LCO's to open tire rated barriers for routing cable in accordance with design modifications. Hourly fire watches were established for each event in accordance with Technical Specification 3.7.~7.a. The fire rated barriers that were opened are listed below. The barriers have been restored, as reflected by.the LCO closed date.
Penetrations       IR #         LCO #    LCO         LCO      Cause entrance    closed date        date AE-154C           83-1-04      83-0004 1/3/83       8/15/83' AE-221C                                                       Planned maintenance.
Auxiliary Bldg.-                                              Cable routed in accordance with CE-19E-           83-1-14      83-0015 1/4/83       1/11/83  modifications to the CE225D'                                                      transient test Control Bldg.                                                system.
AE-129E-           83-1-15      83-0014 1/4/83       8/26/83 CE-358G
             ' Control Bldg.
             ' Fire dams in      83-1-24      83-0022 1/6/83-      3/14/83 Control Room AE-6D             83-1-49      83-0042 1/10/83      2/04/83  Planned maintenance.
            ' Auxiliary Bldg.                                               Cable routed in accordance with AE-378C           83-1-51      83-0044 1/11/83      8/27/83  modifications to the Auxiliary Bldg.                                              plant communication system.
U717, U703_       83-1-84 0075 1/14/83          8/30/83  Planned maintenance.
Control Bldg.                                                Routing wires for the Contrcl Room Status Board

     *~                                                            Attachment to
  .A'''                                                            AECM-83/0556 Page 3 of 3
        . Penetrations IR #      LCO #   LCO      LCO      Cause entrance closed date     date AE-184D       83-1-94~ '83-0086 1/21/83  8/26/83 AE-11B        83-1-96   83-0088 1/22/83  8/26/83  Planned maintenance.
AE-104D                                           Cable routed in accordance with modifications to the Drywell Cooling System.
Control Bldg.
CE-296G       83-1-99   83-0091 1/?4/83  ~8/26/83 Planned maintenance.
CE-115G:                                         Cable routed for AE-68E                                            installation of a AE-151C                                          keycard reader.
AE-184D AE-336C AE-223B AE-150C AE-183C i
k i

MISSISSIPPI POWER & LIGHT COMPANY
                      ]                         Helping Build Mississippi am&Raudd5         P. O. BOXig          gK      N. MISSISSIPPI 39205 Septem er 8, . 63 3 6 NUCLEAR PROoUCTION oEPARTMENT U. S. Nuclear Regulatory Commission Regien II 101 Marietta St. , N.W. , Suite 2900 Atlanta, Georgia 30303 Attention:        Mr. J. P. O'Reilly, Regional Administrator

==Dear Mr. O'Reilly:==

==SUBJECT:==
Grand Gulf Nuclear Station Unit 1 Docket No. 50-416 License No. NPF-13 File 0260/L-835.0 Update Report - Fire Rated Barriers in the Control Building and Auxiliary Building Opened to Perform Planned Maintenance Activities LER 83-011/99 X-2 AECM-83/0556 This is an update to previous reports submitted on February 3, 1983 and April 20, 1983. The events for which the reports were submitted occurred from January 3 to January 24, 1983, when certain fire rated barriers in the Control Building and Auxiliary Building were opened to perform planned maintenance activities. Fire watches were established in accordance 5dth Technical Specification 3.7.7.a.
All fire barriers have been restored. Attached is LER 83-011/99 X-2, whien is a final report.
Yours truly, sidMk p   L. F. Dale Manager of Nuclear Services EBS/SHil: sap                                                                               j Attachment                                                                                  j cc:   (See Next Page)                                                                       l Y5 h
                                                                                    . . ; pl,, co
                                                                                                 .2 h Member Middle South Utilities System                      j

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AECM-83/0556
       #                                                                          ' #E MI:2II lPPI POWER O LICHT COMPANY cc: 'Mr. J. B. Richard (w/a).
Mr. R. B. McGehee (w/o)
Mr. T. B. Conner (w/o)
Mr. G. B. Taylor (w/o) i Mr. Richard C. DeYoung, Director (w/a)
Office of Inspection & Enforcement                                            I U. S. Nuclear Regulatory Commission Washington, D. C. 20555 Document Control Desk (w/a)
U. S. Nuclear Regulatory Commission Washington,-D. C. 20555 3
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