ML20067E007

Interim Deficiency Rept Re Potential for Pipe & Component Overstress Due to Exceeding Pipe Pulling Limits During Welding fit-up.Initially Reported on 821110.Nonconformance Rept Dispositioned to Rework Complete.Next Rept by 830715

ML20067E007
Person / Time
Site:	Seabrook
Issue date:	12/14/1982
From:	Devincentis J PUBLIC SERVICE CO. OF NEW HAMPSHIRE, YANKEE ATOMIC ELECTRIC CO.
To:	Starostecki R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
10CFR-050.55E, 10CFR-50.55E, SBN-406, NUDOCS 8212210449
Download: ML20067E007 (3)

Text

cog- y _ a .,3 3 .<

sem sum

.J.e. om.

lPUEBLIC Compartyof New SERVICE Hampshere 1671 Worcester Road Framinoham, Massachusetts 01701 (617) - 872 8100 December 14, 1982 SBN 406 T.F. Q2.2.2 United States Nuclear Regulatory Commission Region I 631 Park Avenue King of Prussia, PA 19406 Attention: Mr. Richard W. Starostecki, Director Division of Resident and Project Inspection

References:

(a) Construction Permit CPPR-135 and CPPR-136, Docket Nos. 50-443 and 50-444 (b) Telecon of November 10, 1982, A. L. Legendre (YAEC) to Eugene Kelley (NRC Region I)

Subject:

Interim CFR50.55(e) Report; Cold Pulling of Pipe

Dear Sir:

On November 10, 1982, we reported a potential 10CFR50.55(e) item regarding the potential for pipe and component overstress due to exceeding pipe pulling limits during welding fit-up.

It has been determined that this item is reportable under 10CFR50.55(e).

The following information is provided per the interim reporting provision of 10CFR50.55(e)(3).

A. Description of Deficiency An isolated incident of violation of UE&C specification for Assembly and Erection of Piping and Mechanical Equipment, #9763-006-248-51, Paragra ph 3.5.8, has initiated further investigation of a potential generic

~

problem. The UE&C specification contains a pulling limit of 1/8 inch on pipe spools which are to be fit-up for welding. The Pullman-liiggins pipe installation procedure, as written, allows the use of mechanical clamps which may pull a pipe more than 1/8 inch which could result in a potential overstressing of components.

B. Analysis of Safety Implications If excessive misalignments existed in the fit-up of code piping, safety related components (piping, valves, fittings, etc.) could possibly be overstressed. In order to preclude this possibility, all safety related l piping installed will be reviewed in the following corrective action:

C. Corrective Action Taken l 1. The nonconformance report for the specific case was dispositioned to

" rework" following an installation procedure and a reanalysis of the l piping. This action is complete.  !

/}

l 8212210449 821214 IM PDR ADOCK 05000443 '7 S PDR

si s' Unitcd Statog Nucl;cr RegulOttry Commienien Dec mber 14, 1982 Attention: Mr. Richard W. Starostecki Page 2

2. In order to assure proper installation in the future an Engineering Change Approval was issued to immediately require the following in Specification 9763-006-248-51:

a. Paragraph 3.5.8.4 (added)

Installation Procedures shall establish a hold point at the j installation of the final spool piece. Adjacent piping shall

{

be verified as to being in the design configuration as shown on i the drawings and spool piece shall be fit into position as verification that the requirements of paragraph 3.5.8 are not violated.

b. Paragraph 3.5.8.5 (added)

When tooling restraints are used, as permitted by paragraph.

3.5.8.1, on the final closure weld of any system or portion thereof, verification of having met the requirements of paragrapn 3.5.8 shall be performed, prior to making the weld.

The above. items (a and b) are complete.

3. Pullman-Higgins (the installation contractor) procedures are currently being reviewed and revised to incorporate the above requirements. The affected procedures are scheduled to be submitted to UE&C for approval by December 22, 1982.

Retraining of pipe fitters, supervisors, Level 1 QC and Level II QC personnel will be conducted on the revised procedures at that time.

4. Pullman-Higgins will commence a review of isometrics and weld process sheets for determination of closure welds already completed. The initial review will start the week of January 31, 1983 and be limited to ten (10) hot, large bore piping systems. Pullman-Higgins will provide the Construction Manager with a monthly progress update effective the week of March 1, 1983. The scheduled completion date for the engineering review is June 30, 1983 for all previously installed piping systems.

A final report on this subject will be submitted to Region I by July 15, 1983.

Very truly yours, YANKEE ATOMIC ELECTRIC COMPANY 4,

J. DeVincentis Project Manager ALL/fsf cc: Atomic Safety and Licensing Board cc: Director of Inspection and Enforcement US Nuclear Regulatory Commission Washington, DC 20555

7- . . . , - -. - -.

,, s ..

• ASLB SERVICE LIST Philip Ahrens, Esquire Assistant Attorney General Department of the Attorney General Augusta, ME 04333 Representative Beverly Hollingworth Coastal Chamber of Commercc 209 Winnacunnet Road Hampton, NH 03842 William S. Jordan, III, Esquire Harmon & Weiss 1725 I Street, N.W.

Suite 506 Washington, DC 20006 E. Tupper Kinder, Esquire Assistant Attorney General Office of the Attorney General 208 State House Annex Concord, NH 03301 Robert A. Backus, Esquire 116 Lowell Street P.O. Box 516 Manchester, NH 03105 Edward J. McDermott, Esquire Sanders and McDermott Professional Association 408 Lafayette Road Hampton, NH 03842 Jo Ann Shotwell, Esquire Assistant Attorney General Environmental Protection dureau Department of the Attorney General One Ashburton Place, 19th Floor Boston, MA 02108