GO2-83-916, Final Deficiency Rept,Condition 262 Re Power Piping M-146 Near Brackets Substituted for Previously Approved & Unavailable M-142 Brackets.Burns & Roe Revised Spec 215, Section 1B,App D

Final Deficiency Rept,Condition 262 Re Power Piping M-146 Near Brackets Substituted for Previously Approved & Unavailable M-142 Brackets.Burns & Roe Revised Spec 215, Section 1B,App D

ML20078N279
Person / Time
Site:	Columbia
Issue date:	10/13/1983
From:	Carlisle C WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:	Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
10CFR-050.55E, 10CFR-50.55E, 262, GO2-83-916, NUDOCS 8310250453
Download: ML20078N279 (3)

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- . Nig 7 'My Washington Public Power Supply System P.O. Box 968 3000GoorgeWashingtonWay Richland, Washington 99352 (509)372-50()O A

October 13, 1983 /' M y G02-83-916 @c4,f;. ,

Mr. J. B. Martin Regional Administrator U.S. Nuclear Regulatory Commission Region V 1450 Maria Lane, Suite 210 Walnut Creek, California 94596

Subject:

NUCLEAR PROJECT NO. 2 10CFR50.55(e) REPORTABLE CONDITION.#262 POWER PIPING REAR BRACKETS

References:

1. Telecon QA2-83-123, dated June 23, 1983, L.C. Floyd to P. Narbut, same subject.

-2. Letter G02-83-651, dated June 22, 1983, C.S. Carlisle to J.B. Martin, same subject.

In accordance with the provisions.of 10CFR50.55(e), your office was informed of the subject condition by the above references. The attachment provides the Project's final report on Condition #262.

If there are any questions concerning this matter, please contact Roger Johnson, WNP-2 Project QA Manager, (509) 377-2501, extension 2712.

Program Director, WNP-2 LCF/kd

Attachment:

As stated cc: W.S. Chin, BPA N.D. Lewis, EFSEC A. Toth, NRC Resident Inspector Document Control Desk, NRC 0310250453 831013 PDR ADOCK 05000397 S PDR

- S. #p7

WASHINGTON PUBLIC POWER SUPPLY SYSTEM NUCLEAR PROJECT N0. 2 DOCKET NO. 50-397 LICENSE NO. CPPR-93 10CFR50.55(e) CONDITION #262 POWER PIPING M-146 REAR BRACKETS ,

FINAL REPORT Description of Deficiency The Power Piping M-146 rear brackets were substituted for tte previously approved and no longer available, M-142 brackets. Upon receipt of the it-146 brackets, the Construction Manager, Bechtel Power Corporation, issued for use and installed the M-146 b:ackets prior to the Architect Engineer (AE) approval of the Load Capacity Data Sheets. Subsequent to the issuance for use and installation of the M-146 brackets, the AE disapproved Power Piping M-146 rear bracket sizes 15, 20, 25, 40, and 50. Sizes 60 and 80 were approved.

Safety Implication The M-146 brackets are used in applications designed for dead weight and/

or seismic loads. The failure of one or more brackets could result in an overstressed piping condition and subsequent system failure. This condition is considered to be reportable under the provisions of 10CFR50 55(e).

Cause for the Deficiency The condition results from the installation of a standard component which had been changed by the vendor in a manner which did not affect the certi-fied load capacity data sheet, but did alter the attachment weld configur-ation. The 215 specification did not require submittal by the construc-tion contractor of drawings on standard components because Burns and Roe relied on the vendor catalogs and the Certified Load Capacity Data Sheets for component characteristics in performing the design. The standard component vendor, however, reserved the right to make changes without notification to the users and in this instance, reduced the effective area for the weld attaching the component to the supporting structure.

Corrective Action The Construction Contractor (Bechtel) initiated a detail review under Request for Information (RFI) C-0500-H-3123 to identify to the Architect Engineer (Burns and Roe, Inc.) those installations where the replacement, M-146 Power Piping bracket, had been utilized. Burns and Roe evaluated the installation data provided by Bechtel and resolved the use of the M-146 brackets in the disposition of the RFI. Two Project Engineering Directives (PED's) were issued (208-H-0778 and 215-H-X911) to document the acceptability of the brackets in their installed locations. The conse-quences of the deficiency in general, have not resulted in changes to the installed conditions.

Final Report - #262 Page 2 of 2

-Action to Prevent Recurrence r .

i Burns and Roe has revised the.215 Specification, Section 1B, Appendix D and Section 15R to require component standard support outline drawings be' submitted to the owner. This action, in conjunction with submittal of "as-built" information for Quality Class I installations, should assure conformance between the installation and the design.

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