IR 05000206/1987018
| ML20216H665 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 06/16/1987 |
| From: | Huey F, Johnson P NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | |
| Shared Package | |
| ML20216H656 | List: |
| References | |
| 50-206-87-18-MM, 50-361-87-17, 50-362-87-19, NUDOCS 8707010512 | |
| Download: ML20216H665 (4) | |
Text
~
_
'
V. S. NUCLEAR REGULATORY COMMISSION
REGION V
i Report Nos:
50-206/87-18 j
50-361/87-17
-
50-362/87-19 t
Docket Nos:
50-206 50-361 50-362 License Nos:
!
/
NPF-15 Licensee:
Southern California Edison Company P. O. Box 800 2244 Walnut Grove Avenue Rosemead, California 92770 Facility Name:
San Onofre Nuclear Generating Station Meeting Location:
San Onofre Site Meeting Date:
May 28, 1987 Prepared By:
(
M G!/
I7 hF e, Senior Resident Inspector DgtpSjgned Approved By:
~
xA4 h
//6/f 7
<s P. H. / ohnson, Chief Date signed Divisi n of Reactor Safety and Proje ts,Section III Meeting Summary Management Meeting on May 28, 1987 (Report Nos. 50-206/87-18, 50-361/87-17, 50-362/87-19)
Management meeting to discuss issues of current interest relating to the San Onofre Nuclear Generating Station.
i 8707010512 870616 PDR ADOCK 0500
G I
.
___
'
i s
DETAILS 1.
Meeting Participants:
Nuclear Regulatory Commission (NRC)
J. Martin, Regional Administrator G. Knighton, Director, Project Directorate V, NRR A. Chaffee, Deputy Director, Division of Reactor Safety and Projects F. Wenslaski, Chief, Radiological Protection Branch P. Johnson, Chief, Reactor Projects Section 3 R. Huey, Senior Resident Inspector, San Onofre Site I
Southern California Edison (SCE)
H. Ray, Vice President, Site Manager K. Baskin, Vice President, Nuclear Engineering, Safety and Licensing W. Moody, Deputy Site Manager R. Rosenblum, Quality Assurance Manager H. Morgan, Station Manager R. Krieger, Operations Manager M. Medford, Licensing Manager J. Reilly, Technical Manager D. Schull, Maintenance Manager M. Wharton, Deputy Station Manager B. Katz, Operations and Maintenance Support Manager W. Zinti, Compliance Manager Other licensee management and supervisory personnel participated in the meeting on May 28, 1987 2.
Management Discussion A management meeting was held on May 28, 1987, at the San Onofre Site, in San Clemente, California.
The meeting agenda is provided as enclosure 2.
The meeting was opened by Mr. Martin, who stated that a benefit existed in periodically holding management meetings to discuss the licensee's approach to the resolution of plant problems.
Mr. Martin stated that based on his review of some of the recent licensee event reports, he had the perception that SCE appeared to be falling short of their expressed goal of improving site performance in the area of root cause evaluation and corrective action.
He stated that since there are still about four months left in the current SALP period, ample time remains for SCE to better understand the NRC's concern and take any necessary additional actions.
Mr. Ray agreed that the meeting was a good idea and stated that he encouraged more frequent discussions of this nature.
Mr. Ray then proceeded to make a presentation of plant performance indicators that
were being used and developed by SCE for directing site management j
.
.
attention in areas affecting improved plant operation.
Two performance indicators were discussed at length: licensee event reports (LERs) and the impact of safety system unavailability on increased risk of core damage.
With regard to LERs, Mr. Martin commented that Palo Verde had recently begun keeping data that showed the department responsible for actions leading to an event.
He noted that this policy appeared to have had a marked impact on the individual attention directed toward reduction of reportable events.
Mr. Ray agreed to consider the implementation of such a technique at San Onofre.
Mr. Baskin and Mr. Rosenblum explained how SCE has prepared and utilized probabilistic risk asst.ssments (PRA) to aid in determining those systems that require enhanced maintenance practices or design changes to improve reliability.
Mr. Katz described a program that SCE is beginning to experiment with to complement the conclusions resulting from PRA, called reliability centered maintenance.
This program attempts to balance the preventive and corrective maintenance performed on a system so that reliability and operability are optimized.
It was noted during the discussion on PRA that the auxiliary feedwater system problems were known to cause increased probability of core damage.
Mr. Huey noted that the Unit 1 steam driven AFW pump had approximately 90 to 100 hours0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br /> of down time with the unit at power during the first quarter of 1987.
Mr. Ray agreed and stated that significant improvements were being made during the current outage to reduce the chances for recurrence of such problems.
Mr. Martin introduced the subject of bypass of protective channels.
He described an event at another facility, in which the licensee defeated an entire safety function for operator convenience.
Mr. Ray stated that he was very familiar with this event and that such an action would not be tolerated at San Onofre.
Mr. Ray described the specific procedural and administrative controls which are in place at San Onofre to prevent this type of problem.
He specifically clarified the distinction between the defeat of an entire safety function (as was done at the other facility)
and the bypass of a single channel (as was recently questioned by the San Onofre resident inspector).
Mr. Ray stated that although SCE has determined that plant operators should not have bypassed the channel questioned by the resident inspector (since the channel was responding to a valid indication), at no time was plant safety affected.
He noted that SCE has taken action to provide additional clarification as to when reactor protection channels are to be considered inoperable.
The final topic discussed involved SCE performance in response to several recent plant events.
Mr. Martin stated that over the past several months he has perceived a decreasing level of self-criticism by SCE management.
He stated that in several instances SCE appears to have devoted considerable effort and attention toward establishing why an event was not a significant problem at the expense of aggressive and timely corrective actions to preclude recurrence.
Mr. Martin stated that he doesn't think SCE is probing deeply enough into the causes of event.
.
Mr. Ray responded that he was very troubled by Mr. Martin's perceptions relative to SCE performance in the area of self-critical response to plant events.
He further stated that he would commit additional resources and attention to study this problem in greater depth.
Mr.
Martin stated that he did not want to get into specific details on the individual events about which he had concerns; however, he reemphasized that his concerns were not the result of one or two problems.
He also noted that, although he felt that the quality of several of the SCE licensee event reports was poor, in that the reports did not reflect an adequate description of actions that were implemented, there appeared to be a more troublesome problem involving inadequate review and pursuit of corrective actions.
In this regard, Mr. Martin challenged the quality assurance organization, as well as station management, to reflect on what actions are appropriate to correct this problem.
Mr. Ray concluded by emphasizing his intent to maintain an attitude that is highly self critical.
He committed to quickly determine the reasons for the current contrary perceptions in this area and to implement corrective actions where warranted.
Mr. Martin concluded the meeting, noting the usefulness of the discussion.
.
!
l