ML20247D876
| ML20247D876 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 09/04/1989 |
| From: | Cruse C BALTIMORE GAS & ELECTRIC CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20247D879 | List: |
| References | |
| NUDOCS 8909150108 | |
| Download: ML20247D876 (2) | |
Text
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2
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V.
BALTIMORE p
.~
GAS AND ELECTRIC
' CHARLES CENTER. P.O. BOX 1475 BALTIMORE, MARYLAND 21203
' CHARLES H. CRUSE ~
MANAGER R'-
, NUCLEAR ENGINEERING SERVICES tlEPARTMENT September 4,1989 U.~ S. Nuclear Regulatory Commission Washington, DC 20555 ATTENTION:
Document Control Desk
SUBJECT:
Calvert Cliffs Nuclear Power' Plant Unit Nos.1 & 2; Docket Nos. 50-317 & 50-318
't 1 Technical Specification 3.3.
3.2 REFERENCES
(a) Letter-from Mr. J. A. Tiernan (BG&E) to NRC Document Control' Desk, dated January 20, 1987, Request for Amendment
. (b) Letter. from Mr.
S.
A.
McNeil (NRC) to Mr.
J.
A.
Tiernan
.(BG&E), dated May 3,1988, Technical Specification Amendments for Calvert Cliffs Nuclear Power Plant Units -I and 2 Gentlemen:
In Reference (a), we requested a change to the Unit 1 Technical Specification which
. governs the Incore Detector System. Because of the poor quality of 'the existing Tenhnical Specification page (attached), we provided you a retyped page prior to the issuance of Reference (b). Recently, we discovered several typing errors in this Technical Specification which changed its intent. We request that a corrected page (attached) be issued to correct this problem.
The first error is found in 3.3.3.2.b which now addresses the re-calibration of incore
' detectors..It is clear from a comparison with the previous Technical Specification that the correct wording should be excore detecton. Additionally, it is ' physically
. impossible to calibrate the incore detectors using the equipment listed in 3.3.3.2.b.
The Safety Evaluation. contained in Reference (b) correctly addresses the re-calibration
- of the excore detector. system. We have continued to re-calibrate the excore detector system using at least the minimum equipment required to be operable by 3.3.3.2.b.
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8909150108 890904 i i PDR ADOCK 05000317 p
FDC
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DocumGnt Control Desk
-September 4,1989
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The next ' error 'is found in Technical Specification 3.3.3.2.c.l.
The specification currently. addresses. 75% of ' all incore detector agments, it should - address' incore detector ~ locations. Both References (a) and (b)' correctly address incore ' detector
. locations in the text. If the. wording is not corrected, it could result in a condition
'less conservative-than was intended. Given the definitions of an operable detector segment and an operable detector location, it would be possible to render 50% of the -
detector locations' inoperable while maintaining. 75% of the_- detector segments operable.
Therefore, the. wording of the ; Technical Specification should be corrected so it will of ' the specification established in the Safety Evaluation.
meet the intent Should you have any 'further questions regarding this matter, we will be pleased ;to"
' discuss them ' with you.-
Very truly yours,
/
h S
TV 4
CHC/ PSF / dim Attachments cc:
D. A. Brune, Esquire J. E.
Silberg, Esquire R. A.Capra, NRC S. A.McNeil,NRC W. T Russell, NRC V. L. Pritchett, NRC
.T. Magette, DNR