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PILGRIM NUCLEAR POWER STATION; NRC MONTHLY INSPECTION REPORT

 PLYMOUTH, Mass., Aug. 11 /PRNewswire/ -- The Nuclear Regulatory Commission recently reported on its ongoing routine safety inspection program at Pilgrim Nuclear Power Station. Areas relevant to the health and safety of the general public are routinely examined and a report is prepared.
 Inspection report number 93-13 covered the operating period June 8, 1993 through July 12, 1993. At the start of the reporting period, the plant was at 50 percent power, in the process of returning to full power operation following the refueling outage.
 The inspection report covered plant operations, radiological controls, maintenance and surveillance, security, engineering and technical support, and safety assessment and quality verification.
 The Executive Summary of the NRC monthly inspection report is attached to this advisory. Further details on specific items may be obtained by contacting the Nuclear Information Office.
 EXECUTIVE SUMMARY
 Pilgrim Inspection Report 93-13
 Plant Operations: Operators responded properly to a June 23, 1993 hydraulic control unit component malfunction that resulted in an unplanned insertion of a single control rod. Reactor engineering verified that thermal limits had not been exceeded and that the event was bounded by existing safety analysis. Identification and repair of the failed component, the associated scram outlet valve diaphragm, were timely.
 Radiological Controls: Contractor Radiation exposure limits were properly established and controlled during the recent refueling outage. Outage personnel exposure was properly reported to individuals and to the NRC at the completion of their employment periods.
 Maintenance and Surveillance: Switchyard betterment program activities progressed and received appropriate management support. NRC review of the June 23, 1993 control rod insertion event identified an apparent programmatic weakness in the implementation of the preventive maintenance (PM) deferral process. Specifically, numerous PMs, including the procedure that would have replaced the failed scram valve diaphragm, were deleted from the recent refueling outage schedule without completion of all required technical reviews. Preliminary corrective actions have been initiated, however, continued attention is warranted to ensure resolution of this issue.
 Security: The security force continue to perform assigned duties during routine and backshift work periods in a manner consistent with security plan requirements.
 Engineering and Technical Support: Independent inspector review determined the existing inspection and testing programs for the high pressure coolant injection (HPCI) and reactor core isolation cooling (RCIC) system steam exhaust line rupture disks were adequate. This review was conducted following failure of a similar HPCI rupture disk at another NRC licensed power reactor.
 The major salt service water (SSW) titanium piping replacement was completed with good management oversight and appropriate objective measures of quality design and construction. Implementation of this modification significantly enhances long term reliability of the SSW system.
 Safety Assessment and Quality Verification: Licensee event reports (LER) were of high quality and fully developed root causes of the events. All reporting criteria were appropriately addressed.
 -0- 8/11/93
 /CONTACT: David Tarantino, Anita Flanagan, Peggy Markson, Pilgrim Nuclear Power Station, 508-224-4803/
 (BSE)


CO: Boston Edison Pilgrim Nuclear Power Station ST: Massachusetts IN: OIL SU:

JL-CM -- NE007 -- 1699 08/11/93 12:49 EDT
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Publication:PR Newswire
Date:Aug 11, 1993
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