ML20034H644
| ML20034H644 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 03/12/1993 |
| From: | Schnell D UNION ELECTRIC CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20034H645 | List: |
| References | |
| ULNRC-2778, NUDOCS 9303190157 | |
| Download: ML20034H644 (5) | |
Text
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- Post OHiceBox M9.
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St. Louis. Missouri 53166 :
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DonaldF SchneR YION 5&ar V1x P&nf E::LECTRIC nuacar
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c March 12, 1993-
'i U.S. Nuclear Regulatory Commission
[
ATTN:
Document Control Desk Mail.Stop P1-137 I
Washington, D.C.
20555 i
Gentlemen:
ULNRC-2778 e
CALLAWAY PLANT ll
' DOCKET NUMBER 50-483 "I
CALLAWAY PUMP AND VALVE INSERVICE TESTING-PROGRAM
References:
- 1) J. N.-Hannon lettercto D.. F.: Schnell d
dated April ~.7, 1992 l
.2) ULNRC-2548-dated January. 23, 1992 a
This letter transmits Revision 13'of-the-Callaway Pump and Valve Inservice. Testing '(IST) - Program. -
. Attachment 1 is a brief description'of the-changes, and s 'contains a. copy of revised pages which i
should be inserted Anto the existing-program.. ;NRC' staff e
approval of.this submittal is requested =so that these'
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changes may be implemented-for Refuel? 6-which is'
- . i scheduled to begin in'Septemberi'1993.
Changes ~to the Callaway IST-Program are: subject to the fee provisions;of-10CFR170..Therefore, Union-- '
Electric will accept charges incurred as a: result of the NRC review.
If you have any questions concerning'.this-q submittal, please contact me.
i Very truly yours,
{
Donald F. Schnell.
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Attachments
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s STATE OF MISSOURI
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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 has 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
- Ind, Donald F. Schnell Senior Vice President Nuclear SUBSCRIBED and sworn to before me this O
day of 7/h te L-1993.
Atkti $? h?$f e
en BARBARA J. PFtJF NOTARY PUBitC. STATE Of MISSOUl?l MY COMMf5SION D:PIRES APRIL 22, 1993 ST. LOUIS COUNTY.
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Baxter,LEsq.
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Shaw,-Pittman, Potts &;Trowbridge 2300 N.. Street, N.W.
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-Washington,.lD.C~ 20037
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Dr. J. O. Cermak CFA, Inc.
18225-A Flower Hill Way Gaithersburg, MD.20879-5334 L.. Robert Greger Chief, Reactor Project Branch 1 U.S. Nuclear Regulatory Commission-Region III-799 Roosevelt Road.
Glen Ellyn, Illinois 60137 Bruce Bartlett Callaway Resident ~ Office
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U.S. Nuclear Regulatory Commission
,-i RR#1-9 Steedman, Missouri 65077 i
L. R. Wharton. (2)
Office of. Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission 1 White Flint, North, Mail Stop 13E21 11555 Rockville Pike Rockville, ND-20852 Manager, Electric Department Missouri Public Service Commission P.O. Box 360 Jefferson City,1MO.65102 i
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'l Attachment [1}
1Page l'of/2-ti
. CHANGES TO:THE CALLAWAY-v.
INSERVICE TESTING-PROGRAM 1cj t
ITEM.1:
Revise Relief RequestJ.#EP-2 to-remove theluse.
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of alternative'testingJin theHform_of acoustic 1
monitoring techniques.'
d BASIS FOR CHANGE / JUSTIFICATION.FOR NO ADVERSE.'
r
~ IMPACT t
Revision-12 of the'Callaway;Pumpiand ValveL.
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Program allowed either. disassembly or acoustic-1 monitoring to verify full stroke'capabilityfof?
J the Accumulator Dischargeicheck valves.- lUpon' A
further: review, it was discovered that therei was no acceptable method _to' provide flow-j through the Accumulator Discharge Check: Valves j[
(EP8956A,B,C,D) for the purpose-of acoustic:
monitoring.
Therefore, the ability!of these..
d; valves.to'open will-continue _to be verified by-disassembly.
There is no change being'.
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implemented here just a continuation of.
f former plant testing-- therefore no unreviewed.
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t safety question exists.
ITEM 2:
Revise-Alternative to Check-' Valve Full'-Flow'-
J Testing-Justification.#V07;by removing reference to EP8956A,B,C,D_from._the-list of-valves which are tested by acoustic monitoring..>
r BASIS'FOR CHANGE / JUSTIFICATION FOR:NO ADVERSE IMPACT This is an update to support-the change made?to Item 1-above.
The same basis--forL change / justification 5for'no adverse-impact applies.
a ITEM 3:
Add Justification #V08 for the extension of' the-1 disassembly _ interval of the Accumulator l
Discharge Check Valves.
1 BASIS FOR CHANGE / JUSTIFICATION FOR NO ADVERSE i
IMPACT 1
Justification #V08 provides the basis'for j
extending.the disassembly interval!ofLthe.
-Accumulator Discharge Check. Valves.,.This justification is written based on the provisionsLof. Generic-Letter 89-04. :The(only change'being requested here-is.in regards;.to
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the_ frequency.at which the subject valves musti
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11 EAttachmentil 1
- Page 2 ofJ2 3
be disassembled and inspected.
This proposedII testing extension does not pose an unreviewed safety question.
ITEM 4:
Revise' Relief' Request;#P07 to allow-the useiof.
-digital vibration meters.
BASIS FOR CHANGE / JUSTIFICATION FOR NO ADVERSED IMPACT Callaway is buying new digital vibrationymeters; that can be used for ASME.XI testing.
Relief!
Request #P07 allows thecusetof analog. vibration.
- j meters that do not meet the three' times thei
?
reference value criteria.
These digitalf vibration meters are autoscaling and therefore-1 the three times the reference value criteria is:
i not applicable.
Digital vibration meters are b!
exempted from the three times the reference:
i value range. criteria in the Operations;and.
Maintenance of Nuclear Power Plants SectionL6' (O&M, Section 6).
The. accuracy of-:the meters j
will meet the five percent: required bylASME XI.-
This relief request does not introduce:an unreviewed safety question 1as the accuracyand readability of these new vibration meters will-ri be~ equal to or better,than the current 1 analog i j?
vibration meters.
ITEM 5:
Add testing requirements'for the normaliand_ _
alternate chargingfcheck valves-(BB-8378A,B_andM BB8379A,B) to the Pump _and Valve Program,Jand:
I add'new1 Relief Request #BB-12'1which requests ~
f testing the normal and alternateLcharging check-
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valves in.the closed direction:on'a refueling:
I frequency'as. opposed to the n'ormal requirement to test on a quarterly frequency.
q BASIS ~FOR CHANGE / JUSTIFICATION FOR NO ADVERSEi i
IMPACT j
1 Adding'these check 1 valves'to the IST Program is a conservative' change as.it adds more testing.
- The request.to test on a refuel frequency is j
justified because;1eak. testing'these; valves at!
j normal powercoperation createsjthe possibility of causing-a LOCA if one1of these' valves failsh
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This change;does not-introduce =an unreviewed safety question ac it is a conservative: change.
- adds'more testing.
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