ML20064P008
| ML20064P008 | |
| Person / Time | |
|---|---|
| Site: | Indian Point  |
| Issue date: | 08/31/1982 |
| From: | Otoole J CONSOLIDATED EDISON CO. OF NEW YORK, INC. |
| To: | Haynes R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| REF-SSINS-6820 IEB-82-02, IEB-82-2, NUDOCS 8209130071 | |
| Download: ML20064P008 (4) | |
Text
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John D. O'Toola y c r< s *nt Carmo! dated Ed son company of P4ew Yro for 4 Irving P%ce ?Mw Yct' f 4Y 10001 s
Thor "re (212) 460-253 3 August 31, 1982 Re:
Indian Point Unic No. 2 Docket No. 50-247 i
l Mr. Ronald C. Haynes, Regional Administrator Of fice of Inspection and Enforcement Region I U. S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pa.
19406
Dear Mr. Haynes:
By letter dated August 2, 1982 we provided a partial response to action item 3 of IE Bulletin No. 82-02, " Degradation of Threaded Fas tene rs in the Reactor Coolant Pressure Boundary of PWR Plants."
Attachment A to this letter contains the balance of the information necessary to respond to the remainder of action item 3a and action item 3b of the subject bulletin.
Our response is being provided pursuant to Section 182 of the Atomic Ene rgy Act as amended.
Should you or your staff have any questions, please contact us.
Very truly yours,
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befoy this,7 day of 4 g st, 198'-
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THOMAS LOVE Notary Pubhc State of New York No. 31-2409638 Qualified in tiew Y;9 Cct.nty Commisuon Expires March JJ,1983 attach.
cc:
Mr. T. Rebelowski, Senior Resident Inspector U. S. Nuclear Regulatory Commission P.
O. Box 38 Buchanan, New York 10511 8209130071 820831 l PDR ADOCK 05000247 G
i l
ATTACll31ENT A F!nal Response to Action Iten 3 of IE Bulletin No. 82-02 "Degradat ion of Threaded Fas tene rs in the Reactor Coolant Pre s su re Bou nd a ry of PWR Pl a n t s**
Consolidated Edison Company of New York, Inc.
Indian Point Unit No. 2 Docket No. 50-247 August, 1982
Action Item #3a (IE Bulletin No. 82-02):
Identify those bolted closures of the RCPB that have experienced leakage, particularly those locations where leakage occurred during the nost recent plant operating cycle. Describe the inspections made and corrective measures taken to eliminate the problem.
If the leakage was attributed to gasket failure or its design, so indicate.
Response
The bolted closures of the RCPB that have evidenced buildups of boric ecid crystals as identified during inservice inspections performed during the most recent (fourth) refueling outage and the corrective actions
^
taken were identified by Con Edison letter (O'Toole) to NRC (Haynes) dated August 2, 1982.
There have been no bolted closures or connections of the RCPB covered by the scope of NRC IE Bulletin Nc. 82-02 which have experienced leakage during the present operating cycle.
f Action Item #3b (IE Bulletin No. 82-02):
Identify those closures and connections, if any, where fastener lubricants and injection sealant materials have been or are being used and report on plant experience with their application particularly any instances of SCC of fasteners.
Include types and composition of materials used.
Response
A.
Fastener lubricant has been used on steam generator and pressurizer manway closures, valve bonnets and pump flange connections covered by the scope of NRC IE Bulletin No. 82-02.
B.
The individual procedures specify which lubricant is to be used.
The types of lubricants used and composition are:
(1)
Fel-Pro N-5000 Nickel graphite (2)
Neolube No. 1 Graphite suspended in alcohol (3)
Never-Seez Pure nickel special nuclear grade (4)
Molykote 2 Molybdenum disulfide pcwder C.
Injection sealant material has not been used on bolted closures or connections of the RCPB covered by the scope of the NRC IE Bulletin No. 82-02.
D.
We have had no instances of stress corrosion cracking (SCC) of fasteners covered by the scope of the Bulletin.
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