ML20043A785

Forwards Review of Topical Rept Cen 387-P in Response to NRC Bulletin 88-011,Item 1.B, Pressurizer Surge Line Thermal Stratification. Adequate Basis Not Provided to Conclude That Surge Lines Meet 40-yr Plant Life Limit.Encl Withheld

ML20043A785
Person / Time
Issue date:	05/18/1990
From:	Larkins J Office of Nuclear Reactor Regulation
To:	Sterling E ABB COMBUSTION ENGINEERING NUCLEAR FUEL (FORMERLY
References
IEB-88-011, IEB-88-11, NUDOCS 9005230121
Download: ML20043A785 (3)

Text

May 18, 1990 yc

-t Mr. Edward 'C. Sterling, III, Chairman Combustion-Engineering Owners Group Arizona Public Service Company Post Office Box 52034 i

' Phoenix, Arizona 85072-2034-

SUBJECT:

EVALUATION OF. COMBUSTION ENGINEERING OWNERS GROUP BOUNDING ANALYSIS REGARDING NRC BULLETIN NO. abil, "PRESSURIZEP SURGE L'INE THERMAL

-STRATIFICATION" l

By letter dated July 27,1989, the Combustion Engineering Owr.ers Group (CEOG) submitted report CEN 387-P (Proprietary), in res 88-11, Item 1.b,'on behalf of member-utilities. ponse to NRC Bulletin No.

.Your-letter also stated that.

the analysis demonstrated that the structural integrity of all CE0G. plant's

- pressurizer surge lines '(PSL) are maintained'for the 40-year design-life of' the piping systems.

The staff has completed its review of the submittal and finds that although sufficient information has been provided to ' justify interim operation of j

individual plants until they complete their final-report in accordance with j

the schedule-delineated by Item 1.d of the Bulletin, adequate bases have.not~

-l

.been provided for the staff to conclude that;the PSLs meet all appropriate Code limits for 40-year plant-life. Our'evaluationoftheboundinganalysti report'as wel1~as the staff's evaluation of CE's' response to items'_ discussed during a -September 1989 audit at CE's office are enclosed, and identifiesLthose issues which need to be addressed.

The staff will assess the conformance of pressurizer surge lines to applicable Codes and regulatory requirements for-40-year plant life when the report-regarding Item 1.d of the Bulletin is submitted.-

This request for information affects fewer than ten respondents; therefore, OMB l

clearance is not required under Pub. L.96-511.

' o"rkgYnahsigned by John T. Larkins, Acting Director Project Directorate V Division of Reactor Projects - III, j

IV,'V:and Special Projects 4

Office of Nuclear-Reactor Regulation-

Enclosures:

co e As stated

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Mr. Edward C. Sterling, III, Chairman

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Combustion Engineering Owners Group

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Arizona Public Service Company

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l Post Office Box 5?034 Phoenix, Arizona 85072-2034 i

i

Dear Mr. Sterling:

l

SUBJECT:

EVALUATION OF COMBUSTION ENGINEERING OWNERS GROUP BOUNDING ANALYSIS REGARDING NRC BULLETIN NO. 88-11

" PRESSURIZER SURGE LINE THERMAL-STRATIFICATION"

/-

By letter dated July 27, 1989, theCombustionEngineefing'0wnersGroup(CEOG) submitted report CEN 387-P (Proprietary), in response to NRC Bulletin NO.

88-11, -Item 1.b, on behalf of member utilities. ' Yodr letter also stated that the analysis demonstrated that.the structural intesrity of all CE0G plant's?

j pressurizer surge lines (PSL) are~ maintained for he 40-year design life of.

I the piping systems.

]

The staff has completed its review of the sub ittal and finds that although sufficient information has been provided t ustify interim operation of individual plants until they complete thei fina'l re Bulletin, port in accordance with the schedule delineated by Item 1.d of th adequate' bases have.not been provided for the staff to conclude t' hat the PSLs meet all appropriate j

Code limits for 40-year plant life. Our evaluation of the bounding analysis report as well as the staff's evaluati6n of CE's response to items: discussed duringaSeptember1989auditatCE'/officeareenclosed,andidentifiesthose i

l 1ssues which need to be addressed.

i The staff will assess the conform nce of' pressurizer surge lines to applicable 1

Codes and regulatory requirement's for 4D-year plant life when the report:

regarding Item 1.d of the Bulle' tin is~ submitted..

/

f Sincerely, l

i John T. Larkins,. Acting Director Project Directorate V.

t l

Division of Reactor Projects - III, IV, V and Special Projects Office of Nuclear Reactor Regulation

Enclosures:

i 1

As stated DISTRIBUTION l

Docket Fily~

NRC & Local PDRs i

PD 5 Reading JLarkins JZwolinski LA 0GC [n /

TCha SPeterson EJordan ACRS.(10)

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g NUCLEAR REGULATORY COMMISSION 9

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E WASHINGTON, D. C. 20555 '

,W May 18,1990 Mr. Edward C.' Sterling, Owners Group III, Chairman Combustion Engineering Arizona Public Service Company Post Office Box 52034 Phoenix, Arizona 85072-2034

SUBJECT:

EVALVATION OF COMBUSTION. ENGINEERING OWNERS GROUP-BOUNDING' ANALYSIS REGARDING NRC BULLETIN NO. 88-11, " PRESSURIZER SURGE LINE THERMAL-STRATIFICATION" g

pg By letter dated July 27, 1989, theCombus1!ionEngineeringOwnersGroup(CE0G) submitted' report ~ CEN 387-P (Proprietary) 'in response' to NRC Bulletin No. -

88-11, Item 1.b,onbehalfofmemberutilities.

Your letter also stated;that

^

the analysis demonstrated that the structural' integrity of all CEOG plant's

~

pressurizer surge lines ~ (PSL). are maintained for the 40-year design life of the piping systems.

The staff has completed its review of the submittal and finds"that although sufficient information has been provided to justify interim operation of individual-plants until they. complete their final report'_in accordance with-the schedule delineated by Item 1.d of the' Bulletin, adequate' bases have not-been provided for the staff to conclude that the PSLs meet all appropriate.

(

Code limits for 40-year plant life, Our evaluation of the bounding analysis report as well as the staff's-evaluation'of CE's response:to. items. discussed during a September 1989 audit at CE's office are enclosed,;and_ identifies-those issues which need to be addressed.

The staff will assess the-conformance of pressurizer surge lines to applicable 7%

Codes and regulatory requirements for 40-year plant-life when-the report-

'i regarding Item 1.d of the Bulletin is submitted.

4 "i

This request for information affects fewer than ten respondents; therefore, OMB

}

clearance-is not required under Pub. L.96-511..

p Sincerely,

.p Q/4 John T. Larkins, Acting Director Project Directorate:V-Division of Reactor Projects - III, IV, V and Special Projects Office of, Nuclear Reactor Regulation'.

Enclosures:

As stated v

4

-