IR 05000395/1985017

Insp Rept 50-395/85-17 on 850325-29.No Violation or Deviation Noted.Major Areas inspected:util-vendor Interface & Transfer & Evaluation & Implementation of Actions Per Vendor Supplied Technical Info

ML20133C909
Person / Time
Site:	Summer
Issue date:	06/28/1985
From:	Jocelyn Craig, Harper J, Mcintyre R, Milano P NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
To:
Shared Package
ML20133C895	List: IR 05000395/1985017 ML20133C892
References
50-395-85-17, NUDOCS 8508070176
Download: ML20133C909 (6)

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Report N /85-17 Licensee: South Carolina Electric and Gas Company Columbia, South Carolina 29218 Docket No.: 50-395 License No.: NPF-12 Facility Name: V. C. Summer Station Inspection Conducted: March 25-29, 1985 Inspectors: N b $$

Q P. D. Milano, Special Prd5. Inspec. Section (SPIS) Jats EP offcid , 6/w'es R. P. MdIntyre,' SPIS /U 'Dath b2 Y ,

J. C. Harper, Rdactive Inspection Section (RIS) Date Approved by: fh el bj'EO[65

@ r W. Craig, Chief, SPIS,/ Vendor Program Branch Division of Quality Assurance, Vendor, and Jate'

Technical Training Center Programs SUMMARY Scope: This routine, announced inspection involved 93 inspector-hours both on-site and in the corporate office in the areas of the utility-vendor interface, and transfer, evaluation and implementation of actions ( determined by the licensee to be appropriate in response to vendor supplied technical informatio Results: Within the areas inspected, no violations or deviations were identifie Several items of concern are addressed in the report for followup during future inspections.

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REPORT DETAILS Licensee Employees Contacted J. C. LaBorde G.-. Carroll J. W. Poston R. E. Ariail A. P. Turnbeville

• D. Blue R. Steffy J. Archie T. Wessner

• R. M. Fowlkes

• M. N. Browne

• M. D. Irwin

• A. M. Paglia

• A. R. Koon

• 0. S. Bradham

• J. G. Connelly

• J. A. Wactor

• D. W. Fleming The inspectors also contacted other licensee employees during the inspectio NRC Resident Inspector

• W. Hehl, Senior Resident Inspector

" Attended exit interview

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. Exit Interview The inspection scope and findings were summarized on March 29, 1985, with those persons indicated in section 1 above. TFe licensee was informed of and acknowledged the inspection findings listed belo The licensee did not identify as proprietary any of the materials provided to or reviewed by the inspectors during this inspectio . Licensee Action on Previous Enforcement Matters This subject was not addressed in the inspectio . Unresolved Items Unresolved items were not identified during this inspectio . Westinghouse Technical Information The inspectors conducted a review of the licensee's vendor information evaluation and tracking system, with respect to the receipt and processing of technical information provided by NSSS supplier, Westinghouse [W).

Technical information distributed by W is generally provided by means of a W Technical Bulletin, which describes the component, condition / issue and any recommended action Prior to 1982, W utilized another system to transmit information to their W Service Representatives called a Nuclear Service Integration Division TNSID)DataLetter. After the Salem ATWS event, W issued Technical Bulletin

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TB-83-05 which included an index of all currently valid Technical Bulletins and Data letters, and notification that all future Data Letters will be internal W service documents and not used for customer notificatio The inspectors reviewed the SCE&G system developed to track receipt and processing of vendor technical information. The system includes receipt by Nuclear Licensing, assignment of review / evaluation to the appropriate group by means of a Licensing Action Form, and reply to Nuclear Licensing with action taken when necessary through a Licensing Response Form. Also, vendor technical correspondence is tracked on a computer generated (spread sheet) tracking list. The inspectors identified eight W Technical Bulletins that were not included on the computerized tracking list. Following discus-sion of this finding with licensee personnel, one W Technical Bulletin TB-81-11 was located and entered into SCE&G's system. Of the remaining seven Technical Bulletins, three were not available at SCE&G and four had been provided by W with every other sheet printed. The licensee stated that an index of Technical Bulletins was provided by W and copies of all missing bulletins had been requested from While the tracking system indicated Technical Bulletin status, the Data Letters were not included. The licensee stated that this was done based upon their belief that if the information contained in a W Data Letter was important then the information would have been issued as a Technical Bulletin. After discussions of the findings noted above and the W

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distribution of service information, the licensee committed to conduct an evaluation of Data Letters received by SCE&G to determine which W Data -

Letters are applicable to the V.C. Summer Station and to perform a technical evaluation of those found to be applicable. A completion date for the initial evaluation to determine applicability was not established during the inspection. This is considered an open item (395-85-17-01) for followup during a future inspectio The W Technical Bulletins comprised the majority of the items in the tracEing system. But, service related information from other sources was also tracked in the system. This included information from other vendors and, in one recer.t case, a letter from the W Service Representative on a Centrifugal Charging Pump Speed Increaser problem. This latter item is discussed in more detail in Section 7 of this repor . Evaluation of Vendor Technical Information A sample of 20 W Technical Bulletins was selected to review the licensee's receipt, evaluation, and implementation of actions determined by the licensee to be appropriate in response to the information contained in the Technical bulletins. The following is a brief summary of Technical i Bulletins in which discrepancies were identifie Technical Bulletin TB-80-09 Revision 1

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The inspectors reviewed licensee actions taken in response to Technical Bulletin TB-80-09, Revision 1, W-2 Switches with Spring Return, as discussed in Vendor Correspondence Action (VCA) Form No. VEN-043, dated February 8, 1984. The action taken in response to TB-80-09, as stated on VEN-043 was the replacement of the majority of the W-2 switche However, when reviewing the replacement of these switches, the inspectors determined that Summer Station did not utilize this model switch. The licensee committed to review and correct, as necessary, the actions discussed in VCA Form No. VEN-043. The plant had experienced problems with a type OT 1 (Westinghouse) switch that would spring return through the neutral position from SI Block to reset when released. This switch was replaced by a type PT switch (Microswitch Division of Honeywell). Technical Bulletin TB-78-01, Revision 1 TB-78-01-Rev.1, Pacific Centrifugal Charging Safety Injection Pumps,

, was assigned VEN-64, dated February 2, 198 It was closed August 23,

1984, but the evaluation did not include potential procedural changes.

I Technical Bulletin TB-77-02

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TB-77-02., Position of Isolation Valves, was assigned VEN-78, dated February 17, 1984. As of the date of the inspection, the evaluation response had not been received by the Nuclear Licensing Departmen The controlling procedure, Nuclear Licensing Procedure NL-113 l

Revision 2, Vendor Technical Correspondence, was revised January 21,

! 1985, to require the establishment of a completion due date for eval-uation of vendor correspondence. However, any previously prepared action forms were not revised to reflect due date . , ,_ ,___., -_.__ . . _ _ _ __ _ - _ _ - . , , _ _ . _ _ _ _ . , . _ _ . _ _ _ -. . - _ . , . . - . . _ _

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.. Centrifugal Charging Pump Speed Increaser Written correspondence from the Westinghouse Service Representative to SCE&G, dated February 12, 1985, described a potential problem with the lube oil pump coupling on the centrifugal charging pump speed increase This written correspondence in letter form was neither a Technical Bulletin nor a Data Letter. In December 1984, two facilities suffered failure of the couplings and this W letter notified SCE&G of a potential problem. This item was not the su5 ject of a Westinghouse 10 CFR 21 report and no Technical Bulletin had been issued as of the date of the inspectio This letter illustrates another mechanism for utilities to receive information from W concerning potential problems with safety-related equipmen _

The inspectors reviewed preventive maintenance associated with this coupling and determined that no preventive maintenance is currently performed on the coupling. While the failure mechanism has not been determined by W, instances of lack of lubrication, pin hole elongation, and insufficient pin penetration have been identified at other facilitie SCE&G had not evaluated the information or inspected the couplings as of the date of the inspectio . Calibration of Main Coolant Resistance Temperature Detectors (RTD)

Manufactured by RdF Information contained in a Wolf Creek Potential Construction Deficiency Report identified uncertainties in Rdf supplied calibration curves for RTDs. The inspectors reviewed the Summer calibration data for instock RdF RTDs. The specified accuracy in the procurement document was 1%

(probably of reading) and the data indicated approximately 2.5 F accuracy in the normal operating region. SCE&G was unaware of the Wolf Creek problem and is attempting to obtain more information to determine what corrective action, if any, is necessar . Vendor Information Contained in 10 CFR 21 Reports A review of licensee actions relating to selected material deficiencies reported by equipment manufacturers in accordance with 10 CFR Part 21, Reporting of Defects and Noncompliance, was conducted. The following is a brief summary of each report reviewed: NAVC0 Sway Struts with Restricted Pivot Angles On December 10, 1984, SCE&G was notified by the Basic Engineers Division of National Valve and Manufacturing Company (NAVC0) that 9 sway strut components shipped to Summer Station could have a restricted pivot angle. As of the date of this inspection, SCE&G had not initiated their review and evaluation of this ite (. '

.. Inryco Tendon Anchor Head Failures Although SCE&G had not been notified by Inryco via a 10 CFR 21 report, plant personnel were aware of the conditions initially repurted at the Farley Statiori, Unit 2. The Potential Problem at Farley Unit 2 dealt with broken posttensioned containment field anchor heads as well as failure of numerous 170-wire tendons. This potential problem had been entered into the SCE&G integrated tracking system upon receipt of IE Notice 85-10 with Supplement, dated March 8, 1985. As of the date of this inspection, SCE&G had not initiated their review and evaluation of this ite Woodward Type PG-PL Governor with Horizontally Mounted Steam Control Valve On November 6, 1979, Terry Corporation notified SCE&G of a potential problem with the Terry type GS-2 emergency feedwater pump turbine fitted with a Woodward type PG-PL governor and equipped with a horizontally mounted steam control valve. This problem involved the potential for the valve to close rather than remain open while the turbine is on standby. A modification kit was supplied by Terry in 1980 and SCE&G modified the governor linkage as recommended by the vendo Auxiliary Feed Purrp Turbine with Acceleration Control Device On February 27, 1971, SCE&G received a recommended Reset Procedure from Terry Corporation concerning the acceleration control device on the auxiliary feed pump turbine. The acceleration control device was designed to prevent speed overshoot and tripping on a quick start of the auxiliary feed pump turbine. However, the device could fail to function if a second quick start was required within 30 minutes of securing the turbine from the first quick start. A recommended procedural change to prevent this occurrence was implemented in SCE&G procedure S0P-21 " Gimpel Trip and Throttle Valve On February 3, 1984, SCE&G was notified by Terry Corporation, Steam Turbine Division, of a problem with the 4" Gimpel trip and throttle valve. This valve would not close under certain conditions of high inlet pressure and low steam flow. SCE&G replaced the main spring as recommended by the vendo All of the above actions were conducted prior to the implementation of the current SCE&G Vendor Information Tracking Syste