ML20055D302
| ML20055D302 | |
| Person / Time | |
|---|---|
| Issue date: | 06/21/1990 |
| From: | Chan T NRC |
| To: | NRC |
| Shared Package | |
| ML20055D303 | List: |
| References | |
| NUDOCS 9007060137 | |
| Download: ML20055D302 (1) | |
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1 June 18, 1990 l
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MEMORANDUM FOR:
Jean Rathje, Records Manager E
Office of the Secretary
'FROM:
Terence L. Chan, Senior Project Manager Project Directorate V Division of Reactor Projects III,'.IV, V and Special Projects Office of Nuclear Reactor Regulation
SUBJECT:
WITHDRAWAL OF PROPRIETARY EVALUATION FROM NRC LETTER TO COMBUSTION ENGINEERING OWNERS-GROUP DATED MAY 18, 1990 (ANO. 9005230121) l The purpose of'this memorandum is to confirm our provious' telephone conversation during which time I requested that the
' Enclosure to.,the' referenced Hay.18, 1990 letter'be withdrawn from l
the PDR since-it contained proprietary information.
A. revised.non-proprietary version of the. Enclosure will be
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-forwarded to you as ite-replacement.
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May-18, 1990 iy' Mr.' Edward C. Sterling.-1:1, Chairman Combustion Engineering Owners Group Arizona Public Service Company Post Office Box.52034 i
Phoenix, Arizona 85072-2034
Dear Mr. Sterling:
SUBJECT:
- EVALVATION OF COMBUSTION ENGINEERING OWNERS GROUP BOUNDING ANALYSIS.
REGARDING NRC BULLETIN NO 88-11. " PRESSURIZER SURGE LINE THERMAL STRATIFICATION" By letter dated July 27, 1989, theCombustionEngineeringOwnersGroup(CE0G)
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submitted report CEN 387-P (Proprietary), in response to NRC Bulletin No.'
88-11, item 1.b, on behalf of member utilities.
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 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 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 clearance is not required under Pub. L.96-511.
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rfgWa5' signed by John T. Larkins, Acting Director Project Directorate V Division of Reactor Projects - 111, IV, V and Special Projects Office of Nuclear Reactor Regulation
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