United States Nuclear Regulatory Commission - Protecting People and the Environment


ACCESSION #: 9602060071



                           Worcester Controls              A BTR Company

January 31, 1996



NRC Operations Centre

Document Control Desk

U.S. Nuclear Regulatory Commission

Washington, DC 20555

Facsimile No.: (301) 816-5151



FROM:     Canadian Worcester Controls Ltd.

          Glenn Kotack, C. E. T.

          Quality Assurance Manager



SUBJECT:  Final Report regarding 10 CFR Part 21 Notification initiated

          September 13, 1995



EQUIPMENT DESCRIPTION: 3/4" ASME Section III Class 2 Ball Valves



NATURE OF DEFECT:

     Ball valves contain "suspect" pressure boundary bolting.  CWCL

     supplier (Cardinal Industrial Products) identified the bolts as

     originating from a heat lot charge that contained defective product.



IMMEDIATE ACTION BY CWCL:

     An investigation was performed to account for the location of all

     suspect bolting which subsequently identified its use in the

     assembly of valves for locations as indicated below.  Balance of

     suspect bolting was located in CWCL inventory 100% of suspect

     bolting has been accounted for.



LOCATION OF COMPONENTS:

     A)   T.U. Electric Company

          Comanche Peak SES, Glen Rose, Texas

          (4) valves S/N N94-0114-9, -10, -11, & - 12



     B)   Carolina Power & Light Company

          Brunswick Plant, Southport, North Carolina

          (4) valves SIN N94-0121-1, -2, -3 & -4



CORRECTIVE ACTION:



     A)   Four valves which contained the suspect bolts were returned to

          CWCL to have bolting replaced.  This was accomplished and the

          valves were returned to T.U. Electric.



CANADIAN WORCESTER CONTROLS LIMITED, 20 MID-DOMINION ACRES,

SCARBOROUGH,

                       ONT. M1S 4A5 PHONE 298-1671



                           Worcester Controls               A BTR Company



                                   (2)



     B)   Upon receipt of initial notification, CP&L advised CWCL that

          (3) valves were in inventory and had been quarantined while the

          fourth valve had been installed.  Due to the lead time required

          by CWCL to obtain replacement bolting, CP&L advised us they

          would procure replacement bolts from another source and would

          handle the actual change out themselves.



     C)   Corrective action by CWCL supplier (Cardinal Industrial

          Products - Nuclear Division of B & G Manufacturing) has been

          summarized in their Final Report and submitted to the NCR

          (reference Event 29257 November 21, 1995).



SUMMARY:  All bolting identified by CWCL supplier (Cardinal Industrial

          Products ) as being "suspect" has been accounted for.

          Notifications were issued to all customers who had received any

          product containing the "suspect bolting." CWCL Corrective

          Action to have bolting replaced has been completed and is

          considered closed.  "Suspect bolting" in CWCL's possession has

          been returned to the supplier.



....................

Glenn Kotack, C.E.T.

Quality Assurance Manager



cc:  Authorized Inspection Agency

     Ontario Ministry of Consumer and Commercial Relations

     Pressure Vessels Safety Branch

     Mr. Larry Calvert - ANIS



     CWCL Operations Manager - B. Rana

     CWCL Sales Manager - H. Klaus

     CARDINAL 10CFR21 File Sept./95



CANADIAN WORCESTER CONTROLS LIMITED, 20 MID-DOMINION ACRES,

SCARBOROUGH,

                       ONT M1S 4A5 PHONE 298-1671



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