ML17303A777

Responds to NRC 871218 Request for Addl Info Re Bolting Insp Conducted on 861201-12.Controls & Procedures Considered to Adequately Ensure Fasteners Used in Plant Meet Requisite Specs & Requirements

ML17303A777
Person / Time
Site:	Palo Verde
Issue date:	02/22/1988
From:	Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
161-00817-EEVB, 161-817-EEVB, IEB-87-002, IEB-87-2, NUDOCS 8803010388
Download: ML17303A777 (16)

Text

REGULAT

/ INFORMATION DISTRIBUTIO STEM (RIDS)

ACCESSION NBR: 8803010388 DOC. DATE: 88/02/22 NOTARIZED:

NO DOCKET 5 FACIL:STN-50-528 Palo Verde Nuclear Station>

Unit 1> Arizona Publi 05000528 STN-50-529'alo Verde Nuclear Station>

Unit 2> Arizona Publi 05000529 STN-50-530 Palo Verde Nuclear Station>

Unit 3> Arizona Publi 05000530 AUTH. NAME AUTHOR AFFILIATION VAN BRUNT> E. E.

Arizona Nuclear Power Prospect (formerly Arizona Public Serv RECIP. NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Responds to NRC request for addi info re bolting insps conducted 861201-12. Corrective actions: Corrective actions:

insp personnel trained in proper bolting receiving insp techniques 5 instructions revised.

DISTRIBUTION CODE:

A001D COPIES RECEIVED: LTR ENCL SIZE:

TITLE:

OR Submittal:

General Distribution NOTES: Standardi zed p lant.

Standardi zed plant.

Standardi zed plant.

05000528 05000529'5000530 REC IP IENT ID CODE/NAME PD5 LA LICITRA>E INTERNAL: ACRS NRR/DEBT/ADS7E4 NRR/DEST/MTB 9H NRR/DOEA/TSB11F OGC 15-B-18 RES/DE/EIB EXTERNAL:

LPDR NSIC COPIES LTTR ENCL 1

0 1

1 6

6 1

1 1

1 1

1 1

0 1

1 1

1 1

1 RECIPIENT ID CODE/NAME PD5 PD DAVIS> M ARM/DAF/LFMB NRR/DEST/CEBSH7 NRR/DEST/RSB 8E N

S/ILRB12 EG FI 01 NRC PDR COPIES LTTR ENCL 5

5 1

1 0

1 1

1 1

1 1

1 NOTES:

1 1

TOTAL NUMBER OF COPIES REQUIRED:

LTTR 28 ENCL 25

0 h

I

Arizona Nuclear Power Project P.O. BOX 52034

~

PHOENIX, ARIZONA85072-2034 161-00817-EEVB/JBK February 22, 1988 Docket Nos.

STN-528/529/530 U.

S. Nuclear Regulatory Commission Document Control Desk Washington, D.C.

20555

References:

(1)

Letter from U.S.

NRC to ANPP dated December 18, 1987 (2)

Letter from ANPP to U.S.

NRC (

Subject:

NRC Bulletin 87-02:

Fastener Testing to Determine Conformance with Applicable Material Specifications; 161-00746-EEVB/JBK; dated January 15, 1988).

Subject:

Palo Verde Nuclear.',Generating Station (PVNGS)

ANPP Response

.'to NRC.Re'quest for Additional Information 'Concerning Bolting Inspections Conducted~-December 1-12, 1986 File:

88-055-026'8-056-026 During the operations/maintenance inspection conducted December 1-12, 1986 at

PVNGS, samples of safety-related fastener materials were obtained for subsequent chemical analysis and mechanical testing.

The test results revealed several bolts which did not conform to the chemical requirements of their head markings.

Reference (1) requested ANPP to provide a

response to three items addressing the nonconformances.

However, the letter was originally sent to ANPP without the test results and was later received on January 22, 1988.

Attached please find ANPP's response to the three items and ANPP is providing this information within 30 days from receipt of the testing results.

For your information, Reference (2) is ANPP's response to NRC Bulletin 87-02 which requested information concerning fastener testing and controls at PVNGS.

In summary, ANPP controls and procedures are considered to adequately ensure fasteners used in the plant meet requisite specifications and requirements.

880SO'OgC~ 0~0~OS

'88 88 528

I pI)g AD p

8 i(i

t

U.

S. Nuclear Regulatory Commission Page 2

161-00817-EEVB/JBK February 22, 1988 If you need additional information or have any questions, please do not hesitate to call.

Very truly yours, QLA ( fl~

EEVB/JBK/dim Attachment E.

E. Van Brunt, Jr.

Executive Vice President Project Director cc:

0.

M.

De Michele J.

B. Martin E. A. Licitra A. C. Gehr T. J. Polich D.

M. Crutchfield (all w/a)

I',

I

ATTACHMENT NRC UESTION (1)

A description of steps that have been or will be taken to address this problem including a

description of the intended application for these fasteners.

ANPP RESPONSE ANPP initiated corrective action to address the material nonconformances identified in the test results.

The subject material was restricted from further issue and was reinspected.

The reinspection revealed three nonconformances:

(1)

Grade 8.2 material

,was mixed with Grade 8; (2) Grade 5 material was mixed with Grade 8; and (3) not all Grade 8 bolts were identified with manufacturer's markings.

An engineering evaluation was performed to address these items and determined Grade 8.2 is an acceptable alternate for Grade 8,

except, Grade 8.2 bolts are not for use in applications were the temperature exceeds 500 degrees Fahrenheit'.

Additionally, the SAE Grade 5 cap screws which were mixed with Grade 8 cap screws and any bolting without manufacturer's markings should not be used.

All subject bolting which was issued from storage was tracked and returned to storage to prevent usage in the plant.

Inspection personnel were trained in the proper bolting receiving inspection techniques to prevent the future issuance from storage of nonconforming bolting material.

ANPP revised a department instruction to include 100% marking verification for all bolting material prior to issuance from storage.

1479K/0050K

lr

NRC UESTION (2)

A description of steps that have been or will be taken to prevent recurrence:

ANPP RESPONSE In addition to the actions described in the previous response, ANPP presently controls procurement,

receipt, storage and issuance to ensure appropriate use of fasteners.

ANPP has established a

consistent methodology for procuring fasteners from vendors to ensure the requirements of 10 CFR 21 are met.

Fasteners are receipt inspected on a sample basis by Quality Control in accordance with ANPP department instructions and the Operations Quality Assurance Criteria Manual.

Characteristics inspected during receipt inspection of fasteners typically include

markings, size, number of threads per inch, plating, head type, Rockwell

hardness, packaging and applicable documentation such as the certified material test report or certi.ficate of conformance.

Storage and issuance from stock of fasteners is controlled in accordance with ANPP procedures.

Fasteners are tagged and stored in separate bins in a controlled access warehouse.

Only material which has been receipt inspected and tagged with a Quality Control Item Tag by Quality Control can be issued from storage for usage as quality-related material.

Additionally, all quality-related fasteners are presently re-verified by Quality Control prior to issuance.

[i i

NRC UESTION (3)

The dates your corrective actions and preventive measures were or will be completed.

ANPP RESPONSE All corrective actions previously described have been implemented.

NRC UESTION (4)

In

addition, please identify the supplier(s)/manufactuer(s) who furnished the five bolts and also the supplier(s)/manufacturer(s) of fasteners who are currently on the APS Approved Vendor List.

ANPP RESPONSE The test results identified fourteen bolts which were inspected and are designated 6177-1 through 6177-14.

Of these

bolts, five bolts were identified with problems and are designated 6177-5 through 6177-9.

The supplier(s)/manufacturer(s) are ci.ted below:

I I

I D ¹ Su lier Manufacturer I

I 6177-5 6177-6 I

6177-7 I

6177-8 I

6177-9 I

Mar-bro Mar-bro Mar-bro Mar-bro Mar-bro See Note See Note See Note See Note See Note NOTE'nmarked, Nippon

Fastener, Lake Erie or Kosaka Kogyo.

Actual manufacturer's markings were not recorded and/oi transmitted to ANPP by the NRC.

The following suppliers/manufacturers are currently on the ANPP AVL:

A&G Engineering Allis Chalmers/American Air Filter Div.

Alloy Rods Amerace Corp.

AMP Special Anchor Darling Valve Co.

Arizona Valve and Fitting BBC Brown Boveri, Inc.

Bingham International Borg Warner Brand Rex Co.

Carrier Air Conditioning Combustion Engineering Comsip Customline Conax Corporation Connector Systems Control Components, Inc.

Corner 6 Lada Co.

Crosby Valve & Gage

-4

CVI Dietrich Standard Dragon Valves Dresser Industries Drillco Devices Ltd.bolts)

Dubose Steel, Inc.

Earth Technology

Ederer, Inc.

E. I. Internationales data Elgar Corporation Ener-Tech Metals, Energy Services Grouparies Engineered Air BalanceAC Exide Power System Exide Power System Div.

Fisher Controlsves Fluid Components, Inc.

General Electric Hardware Specialty Co.

Henry Pratt Co.

Hub, Inc.

Ingersoll-Rand ITT Grinnell Valve Co.

J.

C. White Co Kaman Instrumentation Keeler

& Long Kerotest Manufacturing Corp.

Metal Bellows Pacific Scientific Pullman Power Products Raychem Corp.

Energy Div.

Rockwell Inter. Corp.

Rotork Controls, Inc.

Solid State Controils Struther Wells Target Rock Corp.

Teledyne Columbia Texas Bolt Transamerica Delaval U.

S. Testing, Inc.

Valspar Corp.

Vitro Corp.

Waldinger Corp.

Weed Instruments Western Stress Western Technology Whiting Corp.

Wyle Laboratories