ML19340C719

Application to Amend Licenses DPR-53 & DPR-69,changing Tech Spec Tables 3.7-4 & 4.7-4 to Identify Snubbers Served by Common Reservoir & to Require Insp for Reservoir Hydraulic Fluid within 7 Days After Startup Following Major Outage

ML19340C719
Person / Time
Site:	Calvert Cliffs
Issue date:	12/12/1980
From:	Lundvall A BALTIMORE GAS & ELECTRIC CO.
To:	Clark R Office of Nuclear Reactor Regulation
Shared Package
ML19340C720	List: ML19340C719 ML19340C724
References
NUDOCS 8012170295
Download: ML19340C719 (2)

Text

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NDVALC.h.M lV4CE Pgt 'DEsef SwGlv Ofheeof uclear Reactor Regulation U. S. Nuclear Regulatory Co:=nission Washington, D. C.

20555 Attn:

Mr. R. A. Clark, Chief Operating Reactors Branch #3 Division of Licensing

Subject:

Calvert Cliffs Nuclear Power Plant Units Nos. 1 & 2, Dockets Nos. 50-317 & 50-318 Hydraulic Snubbers

Reference:

(a) Letter from D. K. Davis to A. E. Lundvall, Jr.

dated November 11, 1977 Gentlemen:

Baltimore Gas and Electric Company hereby requests an amendment to Operating Licenses DPR-53 and DPR-69 for Calvert Cliffs Units 1 and 2, respectively, with the submittal of the following proposed changes to Technical Specifications.

1 TECHNICAL SPECIFICATION CHANGE Change Modify table 3A-7 to identify snubbers served by a common reservoir, and to require inspection for proper reservoir hydraulic fluid level: a) within seven (7) days after startup following a major outage or following maintenance in the vicinity of the reservoir or associated piping, and b) every 31 days,+ 25%.

DiscussionThis change to Technical Specifications is necessary to provide increased surveillance of snubber reservoirs. Reference (a) suggested that more frequent surveillance vould be an acceptable method of increasing assurance that snubbers vould be highly reliable.

Our experience has snown that snubber reservoirs and their associated tubing and fittings are most i

susceptible to biting damaged during major plant outages.

i We have eraluated the merits of this approach versus such alternatives as additional analysis or remote indication and annunciation.

We feel that this provides adequate improvement in reliability assurance.

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Mr. R. A. Clark Page 2 December 12, 1980 i

Modified pages of Unit 1 Technical Specifications are attached as enclosure 1.

Modified pages of Unit 2 Technical Specifications vill be submitted prior to startup following refueling in early 1981.

SAFETY AND E'?VIROI.HENTAL REVIER The above change has been reviewed by our Plant Operations and Safety Review Committee and Off-Site Safety and Review Committee, and they have concluded that granting of the proposed changes vill not result in a undue risk to the health and safety of the public or result in an unacceptable environmental consequence.

SCHEDULE Please note that this change vill require prompt NRC action to permit inclusion in Technical Specifications prior to startup of Calvert Cliffs Nuclear Power Plant Unit 1.

BALTIMORE GAS AND ELECTRIC _ COMPANY

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Supply STATE OF MARYLAND:

TO WIT:

CITY OF BALTIMORE:

Mr. A. E. T.undvall, Jr. being duly svorn states that he is Vice President of the Baltimore Gas and Electric Company, a corporation of the State of Maryland; that he executed the foregoing Amendment for the purposes therein set forth; that the statements made in said Amendment are true and correct to the best of his knowledge, information and belief; and that he was authorized to execute the Amendment on behalf of said corporation.

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WITNESS my hand and Notarial Scal.

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My Commission expires:

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J. A. Biddison, Esquire G. F. Trowbridge, Esquire Messrr L. Conner, Jr. - NRC P. W. Kruse - CE J. W. Brothers - Bechtel J

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