ML20077M318
| ML20077M318 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 08/08/1991 |
| From: | Schnell D UNION ELECTRIC CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20077M320 | List: |
| References | |
| GL-87-09, GL-87-9, ULNRC-2457, NUDOCS 9108130297 | |
| Download: ML20077M318 (5) | |
Text
m 1901 Chower k enue 1%t ofwe % u9 St s;a Us nC316G S u '54 Nf i UNION Donald L Schnell sen, w r:cwe LIDC'TitTC ns u:
33 August 8, 1991 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Mail Station P1-137 Washington, D.C.
20555 ULNRC-2457 Gentlemen:
DOCKET NUMBER 50-483 CALLAWAY PLANT REVISION TO TECHNICAL SPECIFICATION 3/4.0 SURVEILLANCE INTERVALS
Reference:
U LNRC-217 2, dated March 8, 1990 The referenced letter transmitted an amendment application to revise Technical Specifications 4.0.3, 4.0.4 and their associated Bases to incorporate the changes provided in Generic Letter 87-09, dated June 4, 1987.
The purpose of this letter is to provide a revision to the original transmittal. provides a revised Insert 1 and Insert 3 for Technical Specification 4.0.3 and Bases 4.0.3.
The revision adds to Insert 1 the words
" allowable outage" to the time limits of the ACTION requirements discussed in the-second sentence to be more consistent with the wording used-in the Bases.
The revision deletes the last portion of the first paragraph of Insert 3 regarding enforcement action and the reporting requirements as this is inconsistent with the purpose of the Bases.
It deletes the sentence in the middle paragraph of Insert 3 discussing the applicability of the 24-hour " grace" period for surveillances which take exception to Technical Specification 4.0.4, as this is inconsistent with how Union Electric interprets these requirements.
It also adds editorial changes to Insert 3 to provide consistency throughout the text of the Bases. provides a complete package containing all of the proposed Technical Specification changes that were in the original transmittal and the changes submitted in this transmittal.
The pages are annotated, indicating whether they are original or newly c\\
transmitted pages, p h(b (I
- ' ~ 3108130297 910808 i("
PDR ADOCK 05000483 I
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U.S. Nuclear Regulatory Commission Page 2 Union Electric's interpretation of the Technical Specifications is that if an exception is granted to Specification 4.0.4 for an individual i
surveillance requirement, the allowed surveillance interval is applicable.
That is, the allowed j
surveillance interval is assumed to start at the time of entry into the mode for which the surveillance is required to be performed.
Union Electric will, however, retain the practice of completing the surveillances as soon as it is practical to do so.
Using the revised Specification 4.0.3 dases as presented in Generic Letter 87-09 would only provide 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> to complete all raquired surveillances before determining that the LCO has not been met and applying the ACTION requirements.
Depending on plant conditions during start-up and rate of-power ascension, it has been our experience that the 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> is not adequate to perform all required surveillances.
When numerous surveillances are required within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of a modo entry or upon reaching certain plant conditions, manpower considerations may not permit completing all required surveillances in a controlled deliberate manner within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
Main steam isolation valves, main feedwater isolation valves, and secondary atmospheric steam dump valves are examples of components that would become due at the same time and for which the 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> would not be sufficient.
For this reason, the current practice of completing surveillances as soon as practicable after entry into a mode for which a 4.0.4 exception is gr;.nted should be retained.
These changes are similar to those recently approved for Northeast Nuclear Energy Company's Millstone Unit No.
3, and the conclusions of the complete Safety Evaluation and Significant Hazard Evaluation transmitted by Reference ULNRC-2172 remain valid.
Very truly yours, 1
1 l
Donald F.
Schnell JMC/ dis Attachments
e STATE OF MISSOURI )
)
S S' CITY OF ST. LOUIS )
Donald F.
Schnell, of lawful age, being first duly sworn upon oath says that he is Senior Vice President-Nuclear and an officer of Union Electric Company; that he han read the foregoing document and knows the content thereof; that he has executed the same for and on behalf of said company with full power and authority to do so; and that the facts therein stated are true and correct to the best of his
. knowledge, information and belief.
By R4 Donald F._ Schnell Senior Vice President Nuclear bb-SUBSCRIBED and sworn to before me this
- day of. du +u:C-1991.
U LhAN
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eV BARSARA J. PFATF
- NOTARY PUBUC, STATI 0F MISSOURI MY COMMISSION EXPIRES APRit 22, 1993 ST. LOUIS COUNTY l-l l
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cc: -- T. A.
Baxter, Esq.
Shaw, Pittman, Potts & Trowbridge 2300 N.
Street, N.W.
- Weshingtoni-D.C. 20037 I
Dr..
J.
O.
Cermak CFA, Inc.
18225-A'.Flowet Hi11'Way
- Gaithernburg, MD 20879-5334 I
R..C._ Knop
- Chief, Reactor Project Branch 1 U.S. Nuclear Regulatory Commission Region III 799 Roosevelt Rond-Glen ElLyn, 11]inoin 60137 Bruce Bartlett Callaway Renident Offica U.S.
Nuclear Regulatory Commission RRttl Steedman, Missouri 65077 M. D.
Lynch (2)
Office of Nuclear-Reactor. Regulation U.S.
Nuclear Regulatory Commission
. 4 1 White Flint, North,' Mail Stop 13E21 11555 Rockville Pike-Rockville, MD.20852 Manager, Electric Department Missouri Public Service Commission
-P.O.
Box 360 Jefferson. City, MO 65102
- Ron l'ucera Department'of,Nat. ural Renoutces P.O.
Box 176 Jefferson.Citv, MD 65102 w
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