ML17296B110

Second Interim Deficiency Rept Re Loose Bushings on Corner & Lada Sway Struts.Investigation Continuing.Resolution & Completion Plan Will Be Implemented by 810201.Final Rept Will Be Submitted by 810331

ML17296B110
Person / Time
Site:	Palo Verde
Issue date:	12/01/1980
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, 80-019-026, ANPP-16805-BSK, NUDOCS 8012100414
Download: ML17296B110 (10)

Text

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ACCESSION NBR: 801210041.4 OOC ~ DATE: 80/12/01 VOT'AR IZED! NO DOCKE~T FACIL:STN 50 528 Palo Verde STiV 50 529 P'alO~ Verde Nuclear Stationi Unjt NuClear StatiOnp Unit 2r AriZOna Pub1i ii Arizona Publ j 05000528 050005?9 STN 50 530 Palo Verde Nuclear Stations Unit 3i Arizone Publi 05000530 AUTH'AME AUTHOR AFF!ILLATION VAN BRUNTrE ~ K RECIP ~ NAME

' Arizona Public Service Co; RECAP IK V'T~ AFFIL!IATION \

SPENCERgG,ST Region Si San Franciscor Reactor Construction L Engineer SUBJEC'T; Second interim deficiency reot re loose bushings on Corner 8 Lade sway struts,Investigation continuing, Resolution 8 completion pla'n will be implemented by 810201 'inal rept will be submitted~ by 810331 CDDE4 8019S COPIES RECEIVED ~ LITR

'ISTRIBUTION E!VCLI Jg SIZE'o TITLE: Construction Deficiency Report (10CFRSO.SSKO NOTES:Stander djzed P~la'nt. 05000528 Standardized Plant ~ 05000529 Standardized Plant ~ 05000530 RKCIP!IENT COPIES RECIPIENTS COPIES ID CODE'/N A'IK! LA'TR ENCL ID CODE/NAME!t LTTR ENCLI ACTION: A/D W'CKNSNG 04 1 1 MIRAGLIArF05 1 1 LEKgJ ~ 06 1 1 KKRRIGANrJ ~ . 07 1 1 INTERNAI.!: AD/RC I'/IE.'7 ASLBP/J'ARD 1

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1 AEOD 0/DIR 18 HUM FtAC!15 1

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1 EDO L STAFF! 19 1 1 EQUIP QUALl BR1.1 1 1 HYD/GEO'R 22 1 1 I8 K! 09 1 1 LCC QUALl BR 12. 1. 1 MPA 20 1 1 NRC PDR 02 1 OKLO 21 1 1 PRO TST RKV 13 1 1 QA BR 14 1 1 01 1 <RUTHERFORD,A,IE, 1 1 S ~ DKV 21 1 1 EXTERNAL@ ACRS 16 ib 16 LPOR 03 NSICII 08 1 1 o~c >~ ~S80 TOTALil NUMBER OF~ COP~IK8 REQU'IRED e LTTR 39 ENCL( 39

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~~ P. O. 8OX 2I666 PHOENIX'RI2ONA 85036 gXDg December l, 1980 ANPP-16805-BSK/JAR 8Cb p Nuclear Regulatory. Commission Uo'S.

Region V Wal'nut Creek Plaza Suite 202 1990 North California Boulevard Walnut Creek, California 94596 Attention: Mr. G. S. Spencer, Chief Reactor Construction and Engineering Support Branch

Subject:

A 50.55(e) Potentially Reportable Deficiency Relating to Loose Bushings on Corner 6 Lada Sway Struts Interim Report File: 80-019-026

Reference:

(1) Telephone Conversation between R. Dodds and B. S. Kaplan on August 28, 1980 (DER 80-23)

(2) Interim Report ANPP-16428-BSK/JAR, dated September 24., 1980

Dear Sir:

4 The NRC was notified of a potentially reportable deficiency in the referenced telephone conversation. Reference (2) transmitted an Interim Report which estimated completion of the investigation on November 21, 1980.

Due to the extensive investigation and evaluation required, a second Interim Report is attached. It is now expected that this information will be finalized by March 1, 1981, at which time a complete report will be submitted.

Very truly ours,

-C-E. E. Van Brunt, Jr.

APS Vice President Nuclear Projects ANPP Project Director FEVBJr/BSK:skc go/7

'ttachment 5 il(

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U. S. Nuclear Regulatory Commission Attention: Mr. G. S. Spencer, Chief ANPP-.16805-BSK/JAR November 24, 1980 Page 2 cc: Victor Stello, Jr., Director Office-ofInspection and Enforcement U. S. Nuclear Regulatory Commissio'n Washington, D. C. 20555 A. C. Gehr Snell & Wilmer R. L. Robb D. B. Fasnacht W. E. Ide J. M. Allen A. C. Rogers J. A. Brand W'. H. Wilson W'. G. Bingham W. J. Stubblefield R. L. Patterson R. W. Welcher R. M. Grant D. R. Hawkinson-

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INTERIM REPORT POTENTXAL REPORTABLE DEFICIENCY ARIZONA PUBLIC SERVICE COMPANY (APS)

PVNGS UNITS //1, 82 AND //3 I. Potential Problem After Bechtel's receipt of the Callaway/Wolf Creek 10CFR 50.55(e) report concerning Corner & Lada (C&L) Sway Struts, dated July 24, 1980, an inspection was initiated to review the Sizes 1, 2 and 3 sway struts delivered to the PVNGS jobsite. The following conditions have been identified as potential deficiencies:

1. Loose bushings in Size 2 and 3 sway struts at the pipe clamp end can result in the paddle becoming completely disengaged from the bushing, causing a 3/8" gap between paddle and pin.

2. Existence, of a 3/8" gap between the paddle and pin during a seismic event, may result in piping and/or piping welds being over-.

stressed due to movement of the piping system.

After receipt of Bechtel's Quality Assurance Bulletin 80-30 and Problem Alert TPM-P-80-6, October 13, 1980, concerning a generic industry-wide concern for these products and instal-lations, this project has expanded the scope of this potential problem to include the installation of all C&L sway struts.

'Additional surveillance activity performed on November 5, 1980 revealed one C&L sway strut .(2-SG-188-H-001), with bushings on both ends disengaging. The bushings were not staked.

II. A 'roach To and Status of Pro osed Resolution

1. Bechtel Engineering will obtain a written statement from C&L as to the implemented effective date of a formal staking program.

2. Bechtel Construction will identify all struts which have been received prior to the formal staking by C&L.

3. C&L will develop and submit for Bechtel Engineerimg approval, an inspection and repair procedure.

4. Bechtel Construction and C&L will establish how the inspection and repair procedure will be implemented.

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Interim Report Page 2

5. Defective sway struts will be repaired and/or replaced as established by the approved pro-cedure.

III. Pro'ected Com letion of Corrective Action and Submittal Date of the Final Re ort It is forecast to have the resolution and completion plan implemented by February 1, 1981.

The final report will be submitted by March 1, 1981.

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