ML20205N882
| ML20205N882 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 04/15/1999 |
| From: | Raghavan L NRC (Affiliation Not Assigned) |
| To: | NRC (Affiliation Not Assigned) |
| References | |
| NUDOCS 9904190214 | |
| Download: ML20205N882 (2) | |
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4 UNITED STATES j
NUCLEAR REGULATORY COMMISSION If WASHINGTON, D.C. 20555-0001 4...../
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April 15,1999 MEMORANDUM FOR:
Docket File FROM:
L. Raghavan, Senior Project Manager 4 [~
Project Directorate IV, Section 2
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Division of Licensing Project Management Office of Nuclear Reactor Regulation
SUBJECT:
SAN ONOFRE NUCLEAR GENERATING STATION, UNITS 2 AND l
3 -- FACSIMILE TRANSMISSION, ISSUES TO BE DISCUSSED IN AN UPCOMING PHONE CONVERSATION ON STEAM GENERATOR INSPECTION RESULTS l
l The attached questions were transmitted by fax today to Mr. Jack Rainsberry of Southern l
Californal Corporation (SCE) to request him to schedule a conference call with the staff and to discuss their steam generator eddy current inspection results obtained during their imminent refueling outage. The call would be most beneficial when thev are about mid-way or three-fourths complete and have some results to chare with us. Attached is a list of typical discussion areas.
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The licensee's participation in the call is on a voluntary basis.
This memorandum and the attachment do not convey a formal request for information or represent an NRC staff position.
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Docket Numbers 50-361 50-362 l
Distribution p
[ TUI PUBLIC S. Dembeck SONGS r!f J. Sloan, SRI L. Smith, RIV S. Coffin 9904190214 990415 PDR ADOCK 05000361 O
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Steam Generator Tube inspection Results Licensees' steam Generator (SG) tube eddy current (EC) inspections play a vital role in the j
management of SG tube degradation. The results are used to demonstrate adequate structural and leakage integrity of the SG tubes.
NRC staff is interested in discussing the licensee'u steam generc*or inspection plans and results, althu.gh the licensee is not required to participate in this discussion. Typical areas of discussion include:
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e ;onmary to secondary leakage prior to shutdown Results of secondary side hydro e
For each steam generator, a general description of areas examined; includir.g expansion e
criteria and type of probe used in each area e For analyzed EC results, a description of bobbin indications (those not examined with RPC) and RPC/Plus Point /Cecco indications. Including the following information: location, number, degradatien mode, disposition, and voltages / depths / lengths of most significant indications Description of repair / plugging plans e
i Discussion of previous history; "look backs" performed; consideration of similar plants' experiences e Discussion of new inspection findings, including loose parts indications e Description of in-situ pressure test plans and results; include tube selection criteria, test pressure plans, test configuration Describe tube pull plans and preliminary results; include tube selectie i criteria and evaluation e
plans e Assessment of tube integrity for previous operating cycle Assessment of tube integrity for next operating cycle e Provide schedule for steam generator-related activities during remainder of current outage Note:
It may facilitate the discussion if the licensee provides details on the topics listed above prior to the conference call (e.g., simple tables and figures).
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