ML20077H705
| ML20077H705 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 08/04/1983 |
| From: | Rusher F UNISTRUT CORP. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| REF-PT21-83-940-000 PT21-83-940, PT21-83-940-000, NUDOCS 8308110228 | |
| Download: ML20077H705 (2) | |
Text
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p M VC--dOO Unistrut Corporation Elizabeth at Clinton Wayne MI 48184 313 7214040 Tel:x 23 5457
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y2D-U STRUT ByTim AUGUST 4,1983 I
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MR. JAMES G.
KEPPLER I
REGIONAL ADMINISTRATOR U.S.
NUCLEAR REGULATORY COMMISSION 799 ROOSEVELT ROAD GLEN ELLYN, ILLINOIS 60137 l
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DEAR MR. KEPPLER:
THIS LETTER IS TO ADVISE YOU OF THE POSSIBILITY OF A POTENTIAL SAFETY HAZARD AT MORTHERN STATE POWER'S MONTICELLO NUCLEAR POWER PLANT IN MINNEAPOLIS, MINNESOTA AS REQUIRED BY POLICY 10 CFR 21.
UNISTRUT DIVISION, GTE PRODUCTS CORPORATION, PROVIDED 600 PIECES OF OUR PART NUMBER P2073A TO THAT SITE.
THESE PARTS WERE SHIPPED FROM UNISTRUT NORTHERN, LOCATED IN MINNEAPOLIS, MINNESOTA AND SOLD TO COMMONWEALTH ELECTRIC COMPANY, A CONTRACTOR ON THE POWER PLANT SITE.
IT HAS BEEN DISCOVERED THAT 75 PIECES OF THE TOTAL OF 600 WERE NOT FABRICATED AT OUR WAYNE, MICHIGAN FACILITY UNDER THE QUALITY ASSURANCE PROGRAM APPROVED FOR THIS LOCATION.
WE HAVE BEEN ADVISED BY SITE PERSONNEL THAT WELDS ON THESE COMPONENTS DEMONSTRATE A LACK OF CONFOR-MANCE TO SPECIFICATIONS FOR SIZE AND FUSION.
NORTHERN STATES POWER HAS INSPECTED APPROXIMATELY 560 OF THE 600 PIECES AND HAS IDENTIFIED 48 PIECES WHICH WERE NOT PRODUCED UNDER THE ABOVE MENTIONED QUALITY ASSURANCE PROGRAM.
OF THE 48 PIECES, 6 PIECES WERE INSTALLED IN AN OPERATIONAL SYSTEM AND 5 IN A NON-OPERA-TIONAL SYSTEM BUT, "IT HAS BEEN DETERMINED THAT ALL INSTALLED EVALUATED SYSTEMS ARE STRUCTURALLY ACCEPTABLE".
THIRTY-SEVEN PIECES HAVE NOT BEEN INSTALLED.AND WE HAVE BEEN ASSURED THAT "THERE IS NO PROBABILITY THAT TH'I PARTS WILL BE INSTALLED".
0308110220 830804 PDR ADOCK 05000263 S
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/ CONT'D
A MR. JAMES G.
KEPPLER
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REGIONAL ADMINISTRATOR U.S. NUCLEAR REGULATORY COMMISSION AUGUST 4,1983 PAGE 2
/ CONT'D THE COMPONENTS PRODUCED OUTSIDE THE UNISTRUT QUALITY ASSURANCE PROGRAM HAVE BEEN EVALUATED ON A THEORETICAL BASIS BY THREE HYPOTHETICAL ANALYSIS PROCEDURES CON-DUCTED BY BECHTEL POWER CORPORATION IN SAN FRANCISCO, CALIFORNIA.
IN NONE OF THESE TESTS WAS IT DETERMINED THAT THE COMPONENTS WERE STRUCTURALLY UNACCEPTABLE.
HOWEVER, IT HAS BEEN DETERMINED THAT SHOULD TWO OR MORE OF THESE PARTS BE INSTALLED IN TANDEM AND EXPOSED TO ULTIMATE STRUCTURAL LOADING, THERE IS A POTENTIAL THAT THESE COMPONENTS COULD POSSIBLY FAIL, AS NOTED ON BECHTEL'S LETTER 19812, DATED AUGUST 1,1983 AND RECEIVED IN THIS OFFICE AUGUST 3,1983.
WE HAVE NO REASON TO BELIEVE THAT SUCH A SITUATION EXISTS, BUT WE HAVE BEEN ADVISED BY NORTHERN STATES POWER THAT IT IS OUR OBLIGATION ACCORDING TO 10 CFR 21 TO MAKE THIS DISCLOSURE BASED ON THE HYPOTHETICAL SITUATION DESCRIBED.
IT SHOULD BE EMPHASIZED THAT PHYSICAL TESTS HAVE NOT BEEN PERFORMED ON ANY OF THESE COMPONENTS.
UNISTRUT HAS BEEN IN PRIMARY CONTACT WITH MR.
T.P.
MURRAY OF NORTHERN STATES POWER AND MR. C.E.
SMOCK OF BECHTEL POWER CORPORATION, WHO ARE FULLY APPRISED OF THIS SITUATION. UNISTRUT HAS INFORMED THESE GENTLEMEN THAT THE CONDITIONS WHICH ALLOWED THE ERRONEOUS SHIPMENT TO BE MADE HAVE BEEN CORRECTED SO THAT THIS SITUATION COULD NOT REOCCUR.
WE REQUEST THAT YOU CONFIRM RECEIPT OF THIS LETTER AND THAT YOU ADVISE WHAT ACTIONS WILL BE TAKEN AS A RESULT OF IT.
WE ALSO REQUEST THAT YOU ADVISE US OF ANY FURTHER ACTIONS, IF ANY, UNISTRUT SHOULD TAKE.
THIS LETTER IS WRITTEN CONFIRMATION OF A PRELIMINARY TELEPHONE CONVERSATION HELD WITH MR. HARVEY WESTCOTT OF GLEN ELLYN, ILLINOIS NUCLEAR REGULATORY COMMISSION REGIONAL OFFICE ON JULY 18,1983.
SINCERELY, M
FRED K.
RUSHER QUALITY ASSURANCE MANAGER FKR/PB REF:
83140 CC: /DIR. OFFICE OF INSP. & ENFORCEMENT - U.S. NRC, VWASHINGTON, D.C.
MR. TIM MURRAY - N.S.P.
- MONTICELLO, MN.
MR.
C.E.
SMOCK III - BECHTEL POWER - SAN' FRANCISCO, CA.