ML17297A381

Interim Deficiency Rept Re Swivel Bearings on Reactor Coolant Pump Horizontal Support Column Being Unable to Rotate,Initially Reported in 810320 Telcon.Final Rept Will Be Submitted by Aug 1981

ML17297A381
Person / Time
Site:	Palo Verde
Issue date:	04/16/1981
From:	Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	Spencer G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
10CFR-050.55E, 10CFR-50.55E, ANPP-17794, NUDOCS 8104280343
Download: ML17297A381 (8)

Text

RES+TORY INFORMATION DISTR IBlON SYSTEII (RIBS)

ACCESSION NBR ~ 81042803 l3 DOCPDATE 81/04/16 NOTARIZED ~ NO DOCKET FACIL.STN-50-528 BYNAME Palo Verde Nuclear StationP Unit iP Ar izona Publ i 05000528

'UTH AUTHOR AFFILIATION VAN BRUNTPE,ED Arizona Piiblic Service Co, RECIP ~ NAMt SPENCERPG F 8 'egion RECIPIENT AFFILIATION 5~ San FranciscoP Reactor Construction 8 Eng.ineer I

SUBJECT:

'Interim deficiency rept re swivel bearings affinal on reactor coolant pump horizontal support column being unable to rotateiinitially repoited in 810320 telcon rept will be submitted oy Aug 1981, DISTRIBUTION CODE: B0190 COPIES RECEIVED:LTR J'NCL g SIZE:Q TITLE: Construction Deficiency Report (iOCFR50 ~ 55E)

I NOTES:Standardized Plant F 1 cy:C Grimes 05000528 RECIPIENT COPIES RECIP IENT COPIES IO CODE/NAME, E,TTR ENCL ID CODE/NAME LTTR ENCL ACTION:'/D L'ICENSNG 04 1 1 LIC BR 03 BC 05 1 LIC. BR P3 LA 06 1 KERRIGANP Je 07 1 INTERNAL: ASLBP/J ~ HARD 1 1 D/DIR HUM FAC15 1 1 EDO 8 STAFF 19 1 1 EQUIP QUAL BR 1 1 1 1 HYD/GEO BR 22 1 1 I8E 09 1 1 IE/EES 1 1 LIC QUAL BR 12 1 1 MPA 20 1 1 NRC PDR 02 1 1 OELD 21. 1 1 V 13 1 1 QA BR 1 REG F 01 1 1 RUTHERFORDPN ~ IE, 1 1 S NDRDS DEV 21 1 1 EXTERNALS ACRS 16 16 16 LPDR 03 1 1 NSIC 08 1 1 g pcs) ygQ, 8'I 8el TOTAL NUMBER OF COPIES REUUIRED; LTTR Pf ENCL'5

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U. S. Nuclear Regulatory Commission Region V Walnut Creek Plaza - Suite 202 @~/

,1990 North California Boulevard g

Walnut Creek, California 94596 Attention: Hr. G. S. Spencer, Chief Reactor Construction and Engineering Support Branch

Subject:

Interim Report A 50.55(e) Reportable Deficiency Relating to swivel bearings on reactor coolant pump horizontal support column cannot be rotated File: 81-019-026; D.4.33.2

Reference:

Telephone Conversation between J. Eckhardt and B. S. Kaplan on March 20, 1981 (DER 81-5)

Dear Sir:

The NRC was notified of a reportable deficiency in the referenced telephone conversation. At that time, it was estimated that a final report would be available within thirty (30) days.

Due to the extensive investigation and 'evaluation required, an interim report is attached. It is now expected that this information will be finalized by .August, 1981, at which time a complete report will be submitted.

Very truly yours, E. E. Van Brunt, Jr.

APS Vice Predident, Nuclear Projects ANPP Project Director lb yol'f Attachment 5

cc: (see attached)

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U. S. NRC, Region V ANPP-17794-BSK/ JAR Page 2 April 16, 1981 cc:~. Victor Stello, Jr., Director Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D.C. 20555 A. C. Gehr Snell & Wilmer R. L. Robb D. B. Fasnacht, W. E. Ide J. N. Allen A. C. Rogers J. A. Brand W. H. Wilson W. G. Bingham W. J. Stubblefield J. E. Bashore R. N. Grant R. W. Welcher D. R. Hawkinson

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INTERIM REPORT REPORTABLE DEFI CI ENCY ARIZONA. PUBLIC SERVICE COMPANY (APS)

PVNGS UNIT 1 I. Potential Problem During installation of the Combustion Engineering (CE) supplied Reactor Coolant Pump Horizontal Support Columns, it was found by Bechtel that the swivel bearing (Item 5 of CE's Drawing E-SYS80-320-054) could not be rotated. This conditon has been raised as a concern by Bechtel because there is a question as to whether the component would be capable of performing its safety related function of providing for the thermal growth between primary loop and the pump casing.

Combustion Engineering's preliminary evaluation was that the condition is not a reportable deficiency. CE indicated that the noted condition of non-rotation may -have resulted from the very close tolerances specified for the bearing and that the component is designed to accommodate much larger loads than that applied by Bechtel during preparations for installation.

II. A roach to and Status of Pro osed Resolution CE is currently investigating this condition and will provide Bechtel with a disposition to this concern.

III. Pro ected Com letion of Corrective Action and Submittal Date of the Final Re ort The actions necessary to coordinate and resolve this condition are expected to be completed within 90 days. A final report will be issued by 8/1/81.