ML17328A101

Special Rept:On 890217,gap Between Top of Removable Walls & Permanent Structure Separating Fire Zones 63A,63B & 63C from Fire Zone 5 Discovered During Insp.Plant Mods Will Be Completed & Fire Walls Restored to Operability by Mid 1990

ML17328A101
Person / Time
Site:	Cook
Issue date:	07/28/1989
From:	Will Smith INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	Davis A NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 8908140028
Download: ML17328A101 (3)

Text

ACCELERATED DISIRIBUTIOl%

DEMONSTRATION SYSI'EM REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR:8908140028 DOC.DATE: 89/07/28 NOTARIZED: NO DOCKET j;

FACIL:50-315 Donald C.

Cook Nuclear Power Plant, Unit 1, Indiana 05000315 50-316 Donald C.

Cook Nuclear Power Plant, Unit 2, Indiana 05000316 AUTH.NAME AUTHOR AFFILIATION SMITH,W. G.

Indiana Michigan Power Co.

(formerly Indiana

& Michigan Ele RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Special rept:on 890217,gap between top of removable walls permanent structure separating listed fire zones.

DISTRIBUTION CODE IE22D COPIES RECEIVED:LTR Z ENCL SIZE:

TITLE: 50.73/50.9 Licensee Event Report (LER), Incident Rpt, etc.

NOTES RECIPIENT ID CODE/NAME PD3-1 LA GIITTER,J.

INTERNAL: ACRS MICHELSON ACRS WYLIE AEOD/DSP/TPAB DEDRO NRR/DEST/CEB -8H NRR/DEST/ICSB 7

NRR/DEST/MTB 9H NRR/DEST/RSB 8E NRR/DLPQ/HFB 10 NRR/DOEA/EAB 11 NUDOCS-ABSTRACT RES/DSIR/EIB RGN3 FILE 01 EXTERNAL EG&G WILLIAMSi S L ST LOBBY WARD NRC PDR NSIC MURPHY,G.A COPIES LTTR ENCL 1

1 1

1 1

1 1

1 1

1 1

1 1

1 1

1 1

1 1

1 1

1 1

1 1

1 1

1 1

1 4

4 1

1 1

1 1

1 RECIPIENT ID CODE/NAME PD3-1 PD ACRS MOELLER AEOD/DOA AEOD/ROAB/DSP IRM/DCTS/DAB NRR/DEST/ESB 8D NRR/DEST/MEB 9H NRR/DEST/PSB 8D NRR/DEST/SGB 8D NRR/DLPQ/PEB 10 N

2)

RPB 10 G FILE 02 PRAB FORD BLDG HOY,A LPDR NSIC MAYS,G COPIES LTTR ENCL 1

1 2

2 1

1 2

2 1

1 1

1 1

1 1

1 1

1 1

1 2

2 1

1 1

1 1

1 1

1 1

1 S

R I

NOZE IO ALL "RZEG" MXIPIEPIS:

PIZASE HELP US 'IO REEVE HASTE.'GHXACI'IHE DOCUMEÃZ CON'IDOL DESK, LXSTS FOR DOC'1MEMI'S YOU DCSERT NEEDf TOTAL NUMBER OF COPIES REQUIRED:

LTTR 41 ENCL 41.

S h

D D

S

Indiana Michigan Power Company Cook Nuclear Plant P.O. Box 458 Brtdgman. Ml 49106 616 465 5901 INDIANA NICHIGAN POWER July 28, 1989 Donald C.

Cook Nuclear Plant Unit No.

Docket Nos.

50-315 and 50-316 License Nos.

DPR-58 and DPR-74 U.S. Nuclear Regulatory Commission Document Control One White Flint North 11555 Rockville Pike Rockville, Maryland 20852 Attn: A.B. Davis

Dear Mr. Davis:

This special report is being submitted to provide an update regarding the inoperable removable fire barriers reported in a previous letter dated March 27, 1989.

On February 17, 1989, while conducting a routine inspection, a Quality control technician discovered a gap between the top of the removable walls and the permanent structure separating Fire Zones

63A, 63B, and 63C from Fire Zone 5.

Fire Zones

63A, 63B, and 63C are the Unit Two Charging Pump Rooms and Fire Zone 5 is the general East/West Corridor of the Auxiliary Building 587'levation.

This inspection also revealed that gaps existed between the removable blocks and numerous conduits that pass through the removable portion of the wall.

After finding these conditions on the Unit Two removable walls, the inspector checked the removable walls separating Fire Zones

62A, 62B, 62C, the Unit One Charging Pump

Rooms, and Fire Zone 5.

Gaps were also discovered between the top of the removable walls and the permanent structure.

At that

time, the removable walls in both units were declared inoperable and a roving fire watch, as required by Technical Specification 3.7.10 Action a, was established for the affected fire zones.

This roving patrol will remain in effect until the problems are resolved.

890+$ 4002Q 8/0728 PDR ADOCK 05000315 S

PDC

Due to unique nature of these barriers, an engineering analysis/evaluation is being conducted to determine how to address the gaps.

A more complex resolution is required than originally anticipated, due to the possible reconfiguration of various overhanging components in the charging pump rooms.

It is anticipated that these plant modifications will be completed and the fire walls restored to operability by mid 1990 (previous letter reflected projected completion of 7/31/89).

We will inform you upon completion of the plant modifications.

Respectfully, uf.

W.G. Smith, Jr.

Plant Manager cc:

D.H. Williams, Jr.

A.B. Davis, Region III M.P. Alexich P.A. Barrett J.E.

Borggren R.F.

Kroeger NRC Resident Inspector J.G. Giitter, NRC R.C. Callen G. Charnoff, Esq.

Dottie Sherman, ANI Library D.

Hahn INPO PNSRC A.A. Blind S.J.

Brewer/B.P.

Lauzau