ML18139B438

Application for Amend to License DPR-37,allowing 60-day Administrative Extension of Tech Spec 4.17-1 Requirement for Visual Insp Surveillance of 158 Inaccessible Hydraulic Snubbers

ML18139B438
Person / Time
Site:	Surry
Issue date:	07/07/1981
From:	Leasburg R VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	Harold Denton, Varga S Office of Nuclear Reactor Regulation
Shared Package
ML18139B439	List: ML18139B438 ML18139B440
References
418, NUDOCS 8107130421
Download: ML18139B438 (3)

Text

• • • e VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND,, VIRGINIA 2 3 2 61 R.H.LEA.SBUHO July 7, 1981 Vxc:8 l'RESXDENT NUCLEAR OPERATIONS Mr. Harold R. Denton, Director Serial No. 418 Office of Nuclear Reactor Regulation NO/DCW:acm Attn: Mr. Steven A. Varga, Chief Docket No. 50-281 Operating Reactors Branch No. 1 License No. DPR-37 Division of Licensing U. S. Nuclear Regulatory Commission Washington, D. C. 20555 Gentlemen:

AMENDMENT TO OPERATING LICENSE DPR-37 SURRY POWER STATION UNIT N0.2 Pursuant to 10 CFR 50.90, the Virginia Electric and Power Company hereby requests an amendment to Operating License DPR-37 for the Surry Power Station, Unit No. 2. As discussed by Mr. J. D. Neighbors of your staff and Mr. E. R.

Smith, Jr. of our staff on July 6, 1981, it has become necessary to request an extension to the grace period for the visual inspection surveillance require-ment for 158 inaccessible hydraulic snubbers.

We are requesting that Technical Specification 4.17.A for 158 inaccessible hydraulic snubbers be given an administrative extension for 60 days. This extension will allow continued operation of Surry, Unit No. 2, until Surry, Unit No. 1, returns to power operations following an extended Steam Generator Replacement Outage and until North Anna, Unit No. 2, returns to power operations following the recent failure of two main transformers in separate incidents, This extension will maximize the use of our remaining nuclear units and minimize the cost of replacement power, and the ultimate cost to the consumer, during an anticipated peak load period.

The present cycle of operations follows an extended Steam Generator Replace-ment and Refueling Outage. During this extended outage all hydraulic snubbers were removed, rebuilt or replaced as necessary and functionally tested satisfactorily prior to reinstallation. The first visual inspection conducted following the extended outage revealed seven inoperable snubbers. All of the snubbers were inoperable due to the leakage of fittings either at the valve block or the reservoir. In addition, two of the seven had loose baseplates which were replaced with redesigned baseplates. All inoperable snubbers were replaced and all leaking fittings were replaced or repaired. As a result of these inspection findings the present visual inspection interval is 62 days

+/-25%.

Of the total of two hundred and fifty-two hydraulic snubbers, all seventy-seven accessible snubbers and seventeen normally inaccessible snubbers located inside the containment will be visually inspected within the required interval. The seventeen hydraulic snubbers to be inspected inside the containment include six of the seven hydraulic snubbers found inoperable due to fitting leakage during the last visual inspection. The seventh snubber )

will not be inspected due to hazardous inspection conditions.

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PDR ADOCK 05000281 P PDR

e VIRGINIA ELECTRIC AND POWER COMPANY TO Harold R, Denton An administrative extension of 60 days will not have any significant impact on the ability of the remaining one hundred and fifty-eight inaccessible hydraulic snubbers to respond and perform satisfactorily during a seismic event or under accident conditions.

This request has been reviewed and approved by the Station Nuclear Safety and Operating Committee and Safety Evaluation and Control. It has been determined that this request does not involve an unreviewed safety question.

We have reviewed this request in accordance with 10 CFR 170.22. Based on our review we believe the Staff should be able to conclude that this request does not involve a significant hazards consideration; therefore, a Class III license amendment fee is required. Accordingly, a voucher check in the amount of $4,000.00 is enclosed in payment of the required fee.

Your prompt approval of this request will be greatly appreciated.

Veryt;;:~

H. Leasburg Vice t - Nuclear Operations Enclosures cc: Mr, James P. O'Reilly, Director Office of Inspection and Enforcement Region II

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e COMMONWEALTH OF VIRGINIA)

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--- CITY OF RICHMOND )

The foregoing document was acknowledged before me, in and for the City and Commonwealth aforesaid, today by J. I. Oatts, who is Senior Vice President-Power Operations, of the Virginia Electric and Power Company. He is duly authorized to execute and file the foregoing document in behalf of that Company, and the statements in the document are true to the best of his knowledge and belief.

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Acknowledged before me this J day of ~ 19 RI .

My Commission expires: ~ --;;i b 19/g~

Notary Public (SEAL)