ML20062C823
| ML20062C823 | |
| Person / Time | |
|---|---|
| Site: | Shoreham File:Long Island Lighting Company icon.png |
| Issue date: | 10/18/1978 |
| From: | Wofford A LONG ISLAND LIGHTING CO. |
| To: | Robert Carlson NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML20062C822 | List: |
| References | |
| SNRC-332, NUDOCS 7811140234 | |
| Download: ML20062C823 (3) | |
Text
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l EKCO LONG ISLAND LIGHTING COM PANY j
__w-l 175 EAST OLD COUNTR Y ROAD
- H f C K S V I L L E, NEW YORK 11801 anoacw w. worro o v.cs....oc '
SNRC-332 I
.j October 18, 1978 1
f Mr. Robert T. Carlson, Chief Reactor Construction & Engineering Support Branch U.S. Nuclear Regulatory Commission, Region I 4
631 Park Avenue j
King of Prussia, Pennsylvania 19406 c:
r-NRC Inspection No. 78-12 Shoreham Nuclear Power Station - Unit No. 1 Docket No. 50-322
Dear Mr. Carlson:
This letter responds to your letter of August 30, 1978, which forwarded the report of the inspection of activities author-i=ed by NRC License No. CPPR-95, conducted by Mr. Toth of your office on August 8-11, 1978.
The letter stated that it appeared that certain of our activities were not conducted in full compliance with NRC requirements.
The apparent noncompliances and our responses follow:
I.
Apparent Nonccmpliance with 10CFR50, Appendix B, Criterion IX, and FSAR Section 17.1.9B
)
Contrary to the above references, on August 9, 1978, the single-bevel groove weld joint angles for pipe break restraints FWR1, i
i 2 and 15 were 300 although the AWS Structural Welding Code Dl.1, paragraph 2.9, limits such weld joint angles to 450 minimum.
Corrective Action and Results l
Prior to the inspection, welding on pipe restraints using the 300 bevel was accomplished using technique sheets W70J and W70H, both of which required the use of a bevel angle of 450 minimum if the l
techniques were to be considered prequalified by AWS.
A review of the I
l essential variables of these technique sheets has shown that they are j
adequately supported for use with a 300 bevel angle by Welding Procedure Qualification Tests on file.
Accordingly, welds made to these technique sheets are acceptable.
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, L.ONC ISLAND UG>mNG COMPANY E,,
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Mr. Robert T. Carlson Page 2 i
U.S. Nuclear Regulatory Commission Reg. I October 18, 1978 i
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4 Steps Taken to Prevent Recurrence I
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A qualified weld technique sheet (attached to E&DCR P-3071) has been issued to cover all subsequent welding on pipe restraint
-j joints having 300 bevels.
Additionally, the requirement that all i;
welding meet the provisions of the applicable code has been reemphasized to all welding contractors.
1].s Date Full Compliance Will De Achieved i
\\
Full compliance has been achieved.
0 II.
Apparent Noncompliance with 10CFR50, Appendix B, j
1 Criterion V, and FSAR Section 17.1.5B
,iT Contrary to the above references, on August 9, 1978, the I
front weld (inside diameter) size on pipe spool slip-on flange
(
1B21-SLP-211-3-1 was less than 1/4 inch, and the back weld (outside l
diameter) size on pipe spool slip-on flanges 1B21-SLP-211-3-1 and 1B21-SLP-203-3-1 was less than 3/8 inch; although ASME III, para-i graph ND 3661.1, requires these welds to be 1/4 inch and'O.511 inch, respectively.
i l
Corrective Action and Results i
The results of an initial sampling inspectior. sr fillet welds
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on slip-on flanges revealed the need to inspect all such welds.
j Accordingly, all accessible slip-on flange welds will be inspected, l
and those found deficient will be repaired to meet ASME III require-
'i Engineering will provide further instructions regarding welds ments.
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({} determined.not accessible for inspection when the number of these welds is j
(
1 3
Steps Taken to Prevent Recurrence I
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The slip-on flange welds were shop-fabricated.
Therefore, i
this condition has been brought to the attention of Procurement Quality Assurance (PQA).
Additionally, the Project QA Manager has been requested to require that PQA advise the vendor of this condition 5
and assure that the vendor takes proper corrective / preventive action.
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f. WNo isLANo uannNo COMAANY 5
i Mk.RobertT.
Carlson Page 3
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U.S. Nuclear Regulatory Commission Reg. I October 18, 1978 I
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Date Full Compliance Will Be Achieved
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-i Full compliance is expected by February 1, 1979.
i Very truly yours, I
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,s A. W. Wofford -
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Vice President C
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