IR 05000219/1986012

Enforcement Conference Rept 50-219/86-12 on 860912.Major Items Discussed:Findings Detailed in Insp Rept 50-219/86-12 Re Inoperability of Four Snubbers Required by Tech Specs to Be Operable

ML20214F968
Person / Time
Site:	Oyster Creek
Issue date:	10/24/1986
From:	Blough A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:
Shared Package
ML20214F928	List: IR 05000219/1986012 ML20214F927 ML20214F955
References
50-219-86-12-EC, NUDOCS 8611250507
Download: ML20214F968 (3)

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U. S. Nuclear Regulatory Commission Region I Docket N ,

License N DPR-16 Licensee: GPU Nuclear Corporation 100 Interpace Parkway Parsippany, New Jersey Facility Name: Oyster Creek Nuclear Generating Station Meeting at: U. S. NRC Region I,' King of Prussia, Pennsylvania Meeting Date: September 12, 1986 Prepared By: W. H. Bateman, Senior Resident Inspector Oyster Creek Approved by:

A. R. Blough,' Chief V4 Date Reactor Projects Section IA, DRP Meeting Summary:

An enforcement conference was held at NRC Region I on September 12, 1986, to discuss the findings detailed in Inspection Report 50-219/86-12 regarding the inoperability of four snubbers required by Technical Specifications to be operable. This report presents a brief summary of the topics discussed at the meetin The meeting was attended by NRC and GPUN management personnel and lasted approximately two hour kk kDO G

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DETAILS Participants 1.1 GPU Nuclear Corporation D. Croneberger, Director-Engineering and Design R. Fenti, Manager-Qyster Creek QA Mods / Ops R. Keaton, Director-Quality Assurance M. Laggert, Manager BWR Licensing R. Long, V.P.-Nuclear Assurance F. Manganaro, V.P.-Maintenance, Construction, & Facilities W. Popos, MCF Production Director J. Rogers, Dyster Creek Licensing Engineer E. Scheyder, MCF Director, Oyster Creek J. Thorpe, Director-Licensing and Regulatory Affairs 1.2 Nuclear Regulatory Commission Region I W. Bateman, Senior Resident Inspector, Oyster Creek W. Baunack, Project Engineer A. Blough, Chief, Reactor Projects Section IA J. Durr, Chief, Engineering Branch, Region I D. Holody, Enforcement Coordinator, Region I W. Kane, Director, Division of Reactor Projects H. Kister, Chief, Project Branch No. 1 J. Wechselberger, Resident Inspector, Oyster Creek J. Wiggins, Chief, Materials and Processes Section Purpose The enforcement conference was held at Region I's request to discuss the circustances that led to the inoperable snubbers, corrective action that has been effected to preclude this type of problem from recurring, and technical aspects of Isolation Condenser system operabilit . Presentation The NRC Region I Director, Division of Reactor Projects, W. Kane, opened the conference by asking the licensee to explain the circumstances surrounding the issue of the four inoperable snubbers. GPUN responded in basically a three part presentation:

(1) Discussion of history leading up to the problem, (2) Discussion of corrective action taken, not in response to this issue in particular, but to control of contractors in general as the result of a self-critique after the 1983-84 outage, and (3) Discussion of the technical adequacy / operability of the Isolation Condenser system with the four snubbers assumed inoperabl .

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GPUN explained it appeared that General Electric Company (GE), the contractor employed to repair Isolation Condenser welds suffering from IGSCC, had signed various cocuments broadly indicating all work, which would include the welds on the subject snubbers, was complete. Based on these signoffs, GPUN accepted the work as complete. As discussions progressed, it became clear, however, that GPUN did not have in their possession the detailed records (e.g., job travelers) of work performed and that GE had not yet formally respor,ded to GPUN's request for a full explanation of the circum-stances. This-information was stated by GPUN to be forthcomin GPUN stated corrective action taken prior to the start of this 11R outage involved improved contractor oversight by use of GPUN job monitors, improved contractor selection process, and an extended contract for the major site contracto GPUN stated they felt this corrective action addressed the problem at issu GPUN's technical discussion as to Isolation Condenser system operability, assuming the four snubbers were inoperable, indicated the system would still have remained functional,in event of a design basis earthquake (i.e., safe shutdown earthquake). This conclusion was drawn from a computer analysis of pipe and pipe support stresse . Conclusion The licensee concluded that, even though the four snubbers were inoperable, there no significant safety concerr as to system operability. The NRC requested a copy of the calculations for review prior to concurring with this conclusion. In addition, the lack of complete documentation precludes complete NRC verification of the event circumstances. GPU stated they would send the GE report to the NRC after they themselves receive it. And finally, it was stated by GPUN, that evaluation of the the effectiveness of the corrective action taken will require a post-outage critique of the current outage (11R) similar to that done after the last outag . . . . - - - - _ . -.