IR 05000261/1979030

IE Insp Rept 50-261/79-30 on 791211-14.No Noncompliance Noted.Major Areas Inspected:Procedures,Plant Operations, Licensee Event Followup & IE Bulletin,Notice & Circular Followup

ML14175B133
Person / Time
Site:	Robinson
Issue date:	01/11/1980
From:	Kellogg P, Mchenry T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:
Shared Package
ML14175B132	List: IR 05000261/1979030
References
50-261-79-30, NUDOCS 8003190589
Download: ML14175B133 (7)

Text

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UNITED STATES

' aNUCLEAR REGULATORY COMMISSION

REGION II

101 MARIETTA ST., N.W., SUITE 3100 ATLANTA, GEORGIA 30303 Report No. 50-261/79-30 Licensee:

Carolina Power and Light Company 411 Fayetteville Street Raleigh, North Carolina 27602 Facility Name: Robinson Docket No. 50-261 License No. DPR-23 Inspection at Robinson site near Hartsville, South Carolina Inspected by:

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r Date Signed Approved by: _//

P. gSecti hief, RONS Branch Date Signed SUMMARY Inspection on December 11-14, 1979 Areas Inspected This routine, unannounced inspection involved 27 inspector-hours onsite in the areas of procedures, plant operations, licensee event followup, and followup on IE Bulletins, Circulars and Notice Results Of the 4 areas inspected, no items of noncompliance or deviations were identifie DETAILS Persons Contacted Licensee Employees

• R. B. Starkey, Jr., General Manager

• C. W. Crawford, Manager, Operation and Maintenance

• H. S. Zimmerman, Manager, Technical and Administrative

• J. M. Curley, Engineering Supervisor

• B. W. Garrison, Quality Assurance Supervisor C. Wright, Engineering Technician M. Page, Engineer R. H. Chambers, Maintenance Supervisor R. S. McGirtm Senior Nuclear General Specialist F. Bishop, Engineer

• F. Lowery, Operating Supervisor

• M. C. Morrow, Engineering Technician Other licensee employees contacted included operators and office personne HAttended exit interview Exit Interview The inspection scope and findings were summarized on December 14, 1979 with those persons indicated in Paragraph 1 above. The inspection activities presented in these details were discusse.

Licensee Action on Previous Inspection Findings (Closed) Deficiency (79-10-01):

Failure to take corrective action when data was not within acceptance criteria. The inspector reviewed selected procedures and verified that corrective actions were taken in cases where data did not meet the acceptance criteria. In addition, discussions with plant auditors indicated that similar occurrences had not been identified during routine audits of completed procedure dat Based upon the inspector and plant audits, it appears that this item was an isolated case caused by oversight and that the licensee's corrective action with regard to this item is satisfactor (Closed) Unresolved (79-10-02): Operating Work Procedures (OWP's) not reviewed by the PNSC and approved by the General Manager. The inspector verified that all OWP's had been incorporated into standing orders, which require PNSC review and General Manager approval. Since the unresolved concerns with regard to this matter were corrected, this

item was close.

Unresolved Items Unresolved items were not identified during this inspectio.

Review of Plant Operations The inspector reviewed the following areas of plant operation to ascertain whether facility operation was in conformance with applicable regulatory requirements and licensee commitments: Operating Logs and Records The inspector reviewed the following operating logs and records to ascertain whether plant operation was in conformance with Technical Specifications and administrative licensee requirements:

-Shift Foremen logbook October 10 - November 6, 1979-Control Room Operator logbook November 1 - December 10, 1979-Control Room Hot Operation lo October 1-31, 1979-Auxiliary Operator -

Outside log October 1-31, 1979-Auxiliary Operator -

Inside log. October 1-31, 1979-Equipment Inoperable Reports October 1-December 12, 197 The inspector reviewed operating logs to insure that logged data was recorded in sufficient detail to communicate equipment status and was properly reviewed by supervisory personne In addition, logs were reviewed to insure that logged information did not conflict with Technical Specification requirements. The inspector reviewed plant Trouble Tickets and Equipment Inoperable Report Forms to insure that applicable Technical Specifications, including reporting requirements, were adhered to for inoperable equipmen No problems were identified in this are Facility Tours The inspector conducted several facility tours during normal and backshift period Inspection activities in this area included observation to insure that; instrumentation was operating and calibrated as required, radiation controls were established and properly adhered to, fire protection equipment was located as specified and appeared operable. In addition, selected valves, circuit breakers and control switches were verified to be properly

aligned as required by Technical Specifications and plant procedure No problems were identified within this are Control Room Operations Control room operations were observed and discussed with control room personnel to assure compliance with Technical Specifications and plant administrative requirements. Inspection activities in the control room included; observation of selected instrumentation to assure plant operation within required limits, observation of surveillance testing and shift turnover, verification of control room manning in conformance with the requirements of 10 CFR 50.54(k)m and IE Bulletin 79-06 No problems in this area were identifie.

Review of Licensee Event Report (LER's)

The inspector reviewed seven LER's for consistency with the requirements of Technical Specification Section 6.9. The inspector examined the licensee's analysis of the event, corrective action taken, and discussed the LER's with licensee representatives. The following LER's were reviewed: LER 79-29, Failure to Perform Fire Surveillance Similar events involving the failure to perform required fire surveil lance patrols had been previously reported in LER's 79-24 and 79-2 However, this event resulted from an individual problem and did not appear to reflect upon the generic aspects of overall administrative controls within the fire surveillance are Licensee corrective action with regard to this item appeared satisfactory to prevent recurrence; therefore this item was close LER 79-31, Steam Generator (SG) Pressure Transmitter Inoperable This event was caused by a failure of SG pressure transmitter (PT-496)

output for a few minutes. Licensee evaluation and monitoring of PT-496 did not identify the cause of the temporary failure. The inspector discussed PT-496 operation with several operating and maintenance personnel and no subsequent problems with PT-496 had occurred. In addition, the licensee was seeking information from the manufacturer regarding the instrument failure. This LER was close LER 79-32, 33 and 34, Steam Generator "A" Auxiliary Feedwater Supply Valve Inoperable This event was caused by a circuit breaker trip on thermal overload due to operation of the valve motor torque switch. The short term corrective action resulted in a reduction of torque switch setpoint to prevent circuit breaker overload. However, this action is considered as an interim solution until the acceptability of lower torque setting can be fully evaluated. The inspector closed these LER's. However, the licensee evaluation of the torque setting was identified as an open inspection followup item. (79-30-01)

-4 LER 79-36, Unsealed Fire Barrier Penetration The licensee's correcitve action with regard to this item was reviewed and appeared adequate. This LER was close LER 79-41, Containment Fan Cooler Motor Leads Improperly Installed This event involved improper reinstallation of motor electrical leads resulting in non-environmentally qualified connections to safety related equipment. Procedure changes necessary to prevent recurrence this event on safety-related equipment were discussed with cognizant licensee personnel. The licensee's corrective actions to prevent recurrence of this event appeared satisfactory. This item was close.

Plant Procedures The inspector reviewed selected procedures for compliance with Technical Specification 6.8 and Administrative Instruction, section 5.0. Procedures reviewed included; operating, general, abnormal, emergency, maintenance, fuel handling, periodic test and administrative procedures. The inspector verified the following: Required review and approval of procedure changes and temporary proce dure changes had been performed, including conformance to 10 CFR 50.59 requirement Procedure contents were consistent with Technical Specification require ments and reflected revisions of Technical Specification Procedures located in plant working files, including check lists and formswere current with respect of revision and temporary chang No problems were identified during the review of plant procedures. However, the inspector did not determine the method utilized to control the use of field procedure copies outside the control room. Specifically, the method used to insure that current procedure revisions are implemented at local stations such as the Waste Evaporator Panel was not determined. This item was identified as open pending inspector followup during a future inspectio (79-30-02) Review of IE Bulletins (IEB's) IEB 79-23, Failure of Emergency Diesel Generator Field Exciter Transformer The licensee's response to IEB 79-23 indicated that no problems of the type identified in the IEB were identified due to fundamental design differences of the Robinson emergency diesel In addition, the licensee committed to a load test of each diesel during the 1980 refueling outage. The inspector closed IEB 79-23 and identified the testing of the emergency diesels as an open itemwhich will be reviewed during the 1980 refueling outag (79-30-03)

-5 b. IEB 79-24, Frozen Lines The inspector toured outside plant areas to ascertain if the existing insulation and heat tracing appeared adequate. No problems were identified. IEB 79-24 was close IEB 79-20, 79-22 and 79-26 These IEB's were issued to the licensee for information only. The inspector verified that each bulletin was received and reviewe Since no actions were required by the licensee, these IEB's were close.

Review of IE Circulars and Notices (IEC's and IEN's)

The inspector verified that IE Circulars and Notices had been received and reviewed by cognizant licensee personnel. Selected applicable IE Circulars and Notices were discussed with licensee personnel to ascertain licensee actions on these items. The inspector also verified that IE Circulars and Notices were reviewed by the Plant Nuclear Safety Committee in accordance with facility administrative policy. The following IE Circulars and Notices were reviewed by the inspector and were closed:

IE Circulars IE Notices 79-10 79-15 79-12 79-20 79-13 79-21 79-14*

79-22 79-16*

79-17 79-23 79-18*

79-24

• IEC not applicable to facility, closed for record purpose onl.

Reactor Trip Followup The reactor tripped at 4:00 p.m. on December 13, 1979, due to a main turbine trip caused by high steam generator level. The inspector observed control room activities following the reactor trip to verify compliance with applicable procedures and Technical Specification requirements. The trip occurred when both heater drain pumps tripped on low heater drain tank level, resulting in operator action to reduce turbine load. The load reduction caused a steam generator level transient, resulting in high steam generator level in one steam generator. A malfunctioning heater drain

-6 level control system caused the loss of the heater drain pumps. The unit was stabilized in hot shutdown and all emergency system functioned as designed. The problem with the heater drain level controls was corrected and the unit returned to operation within two hours. No problems were identified.