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

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

ML20080F090
Person / Time
Site:	Grand Gulf
Issue date:	09/08/1983
From:	Byrd R, Dale L MISSISSIPPI POWER & LIGHT CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
AECM-83-0556, AECM-83-556, LER-83-011-99X, LER-83-11-99X, NUDOCS 8309190155
Download: ML20080F090 (5)

LER-2083-011, 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

Event date:
Report date:
4162083011R00 - NRC Website

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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

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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.

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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.

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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

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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

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

1. ' #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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