ML20083F135
| ML20083F135 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 12/08/1983 |
| From: | Carey J DUQUESNE LIGHT CO. |
| To: | Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| REF-SSINS-6820 IEB-82-02, IEB-82-2, NUDOCS 8312300169 | |
| Download: ML20083F135 (4) | |
Text
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'Af Telephone (412) 3934000 Nuclear Division Sh pp n port, PA 15077-0004 December 8, 1983
- Office of Inspection and Enforcement ited States fluclear Regulatory Commission Attn: Dr. Thomas E. iturley, Regional Administrator Region I 631 Park Avenue King of Prussia, PA 19406
Reference:
Beaver Valley Power Station, Unit No.1 Docket No. 50-334, License No. DPR-66 IE Bulletin 82-02 Gentlemen:
In acconlance with IE Bulletin 82-02, " Degradation of Threaded Fasteners in the Reactor Coolant Pressure Boundary of PilR Plants",
attached is the information required for Action Items 1 and 2 of the Bulletin.
If you have any questions concerning this response, please contact my office.
Very trul yours,
.J.
arey Vice President, Nuclear Attachment cc: fir.11. fl. Troskoski, Resident Inspector U. S. Nuclear Regulatory Commission Beaver Valley Power Station Shippingport, PA 15077 U. S. Nuclear Regulatory Commission c/o Document Management Branch liashington, DC 20555 Director, Safety Evaluation and Control Virginia Electric & Power Company P.O. Box 26666 One James River Plaza Richmond, VA 23261 8312300169 83120s I (
DR ADOCK 05000334
[g.,tl PDR
COMM0tNEALTH OF PENNSYLVANIA)
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COUNTY OF BEAVER
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On this /dM day of f a,M
/9 / 8, before me, A ///. SAifnA a Notiry Public in and for said Commonwealth and founty, personally appeared J. J. Carey, who being duly sworn, deposed, and said that (1) he is Vice President of Duquesne Light, (2) he is duly authorized to execute and file the foregoing Submittal on behalf of said Company, and (3) the statements set forth in the Submittal are true and correct to the best of his knowledge, information and belief.
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$MilA N.FAff0tE. NOTARY PHUC SMlPPlHGPOEf 8080.SEAVER COUllTY MY C0tlNtSS 02 EXPIRES SEPT.16. IM5 Messef, Pensykwie Association of Notaries 6
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F DUQUESNE LIGHT COMPANY Beaver Valley Power Station - Unit No.1 ATTACHMENT Response to IE Bulletin 82-02 Action Item 1 Maintenance procedures were modified, or. developed where needed, to include threaded fastener practices as described in Bulletin Action Item 1.
This was accomplished prior to the perfonnance of the required inspections.
Action Item 2 Threaded fasteners of closure connections identified in the scope of this Bulletin were inspected when opened for inspection or maintenance during the 1983 refueling outage. The examinations were performed in accordance with approved procedures which were modified or developed to address the concerns of this Bulletin. The following components received magnetic particle and visual examinations in accordance with the Bulletin:
18 Steam Generator Primary Manway Bolts lC Steam Generator Primary Manway Bolts lA RC Pump Seal Housing Bolts 1C RC Pump. Seal Housing Bolts RV-RC-551B Pressure Relief Valve Studs & Nuts
f Attachment
. Response. to IE Bulletin 82-02 Page 2 iThe results of the examinations perfonned are as follows:
VT visual inspection MT magnetic particle inspection NRI - no reportable indications 1C S/G (32 bolts)
VT: NRI (9/82)
MT: 24-NRI, 8 showed linear indications on bolt head, no indications detected in threaded area.
Eight bolts replaced with acceptable spares.
1C S/G (32 bolts)
VT:
22-severely corroded,10-NRI (7/83)
MT:
corroded bolts not MT inspected,10-NRI corroded bolts replaced 18 S/G (32 bolts)
VT:
32-NRI MT:- 32-NRI 1C RCP-(12 bolts)
VT:
12-NRI fE:
12-NRI
'1 A RCP (12 bolts)
VT: 12-surface pitting (shank area)
MT:
12-NRI PRV 5518 (nuts)
VT:
12-NRI, 3 showed linear indications on axial
- end, 8-poor surface condition, evidence of corrosion MT:
12-NRI, 3 showed linear indications on axial
- end, 8 corroded nuts not MT inspected 11-nuts replaced (studs).
VT:
12-NRI MT:
12-NRI
'(nuts)
VT: 4-NRI, 3 showed linear indications MT: NRI, 3 showed linear indications on axial end 3 nuts replaced (studs)
VT: 4-NRI MT:
4-NRI
-