IR 05000395/1987019

Insp Rept 50-395/87-19 on 870706-31.No Violations or Deviations Noted.Major Areas Inspected:Previous Insp Findings,Unresolved Items,Onsite Followup of Events,Written Repts & Monthly Surveillance & Maint Observations

ML20237H849
Person / Time
Site:	Summer
Issue date:	08/06/1987
From:	Dance H, Hopkins P, Prevatte R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:
Shared Package
ML20237H832	List: IR 05000395/1987019 ML20237H829
References
50-395-87-19, IEB-80-18, NUDOCS 8708170384
Download: ML20237H849 (8)

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pH MGt,f UNITED STATES E #'o NUCLEAR REGULATORY COMMISSION

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n REGION 11 101 MARIETT A ST RE ET, $

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I Report No.: 50-395/87-19 Licensee: South Carolina Electric and Gas Company i Columbia, SC 29218 Docket No.: 50-395 License N NPF-12 Facility Name: Summer Inspection Conducted: July 6-31,1 87 Inspector: C %

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7/[ 7 Ofat ' Signed Richard L. Pr(vatte-ON'- $'b/Y?

Perr . Ho kins / Bats i ned Approved by: .

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flughCfDance,SectionChief I[p 77 Da'te/ Signed Division of Reactor Projects SUMMARY Scope: This routina, announced inspection was conducted by the resident inspectors onsite, in the areas of licensee action on previous inspection findings, unresolved item, onsite followup of events and subsequent written reports, monthly surveillance observations, engineered safety features system walkdown, monthly maintenance observation, operational safety verification, physical security and other area Results: No violations or deviations were identifie h G

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l REPORT DETAILS Persons Contacted Licensee Employees

D. Nauman, Vice President, Nuclear Operations '

O. Bradham, Director, Nuclear Plant Operations J. Skolds, Deputy Director, Operations and Maintenance G. Soult, Manager, Operations M. Browne, Group Manager, Technical and Support Services M. Quinton, Manager, Maintenance Services A. Koon, Manager, Technical Support G. Putt, Manager, Scheduling and Materials Management K. Woodward, Manager, Nuclear Education and Training L. Blue, Manager, Support Services S. Hunt, Manager, Quality Assurance Surveillance Systems K. E. Beale, Manager Nuclear Protection Services W. Higgins, Associate Manager, Regulatory Compliance B. Williams, Supervisor, Operations Other licensee employees contacted included engineers, technicians, operators, mechanics, security force members, and office personne . Exit Interview (30702,30703)

The inspection scope and findings were summarized on August 3, 1987, with those persons indicated in paragraph 1 above. The inspectors described the areas inspected and discussed the inspection findings. No violations or deviations were identifie The licensee did not identify as l proprietary eny of the materials provided to or reviewed by the inspectors during the inspectio . Licensee Action on Previous Inspection Findings (92701, 92702)

(Closed) Violation 86-12-01, Inoperable charging / safety injection pumps due to swing pump alignment. The licensee provided written responses  ;

to this violation in a letter to Region II, dated July 11, 1986 and a l letter to the Office of Inspection and Enforcement, dated October 17, 198 These letters provided an extensive listing of corrective actions implemented and planned to correct this item and prevent recurrence. The l inspectors reviewed the licensee's responses and verified that the l corrective actions have been implemented. Actions stated by the licensee i involving the review of training material are long range with an antici- l pated completion date of December 1988. The inspectors will review that item for completion during future reviews of training materia This item is closed.

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(Closed) Violation 87-11-01, Failure to plug correct steam generator tubes. The licensee provided a written response to this violation in a letter to Region II, dated June 17, 1987. The inspectors reviewed the licensee's response and the corrective action taken to prevent recurrence of this item. The licensee's analysis indicated that there were no safety consequences as a result of this event. Corrective actions will include independent verification of correct tube plugging, using taped video or still photography in future plugging of tubes. This action appears adequate to preclude recurrence. This item is close (Closed) Licensee Identified Item 80-29-01, Charging pump minimum flo This item related to the action taken by the licensee on Inspection and Enforcement Bulletin 80-18, " Maintenance of Adequate Minimum Flow Through Centrifugal Charging Pumps Following Secondary Side liigh Energy Line Rupture". The licensee responded to Nuclear Reactor Regulation (NRR) on this issue in letters dated January 22, 1982 and April 29, 1987. These letters described the actions taken by the licensee in response to the I above bulletin. The NRR project manager, in a letter to the licensee

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dated July 20, 1987, stated that the licensee's submittals had been reviewed and found adequate to address this bulletin. This item had been closed by NRR and is therefore close . Unresolved Item *

See paragraph 7c for the unresolved item discussed in this repor . Monthly Surveillance Observation (61726)

The inspectors observed surveillance activities of safety related systems I and components to ascertain that these activities were conducted in accordance with license requirements. The inspectors observed portions of selected surveillance tests including all aspects of one major surveillance test involving safety related systems. The inspectors also verified that ,

the required administrative approvals were obtained prior to initiating the test, that the testing was accomplished by qualified personnel, that j required test instrumentation was properly calibrated, that data met Technical Specification (TS) requirements, that test discrepancies were rectified, and that the systems were properly returned to service. The following specific surveillance activities were observed:

STP 211.002 Reactor Vessel Surveillance Specimer hemoval and Examination j l

STP 125.002 Diesel Generator Operability Test i STP 345.075 Solid State Protection System Actuation of Train "A" Reactor Trip Breakers  ;

STP 555.001 Spent Fuel Pool Ventilation Canister Test i *An unresolved item is a matter about which more information is required to I

determine whether it is acceptable or may involve a violation or deviation.

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STP 134.001 Shutdown Margin Calculation-STP 106.001 Moveable Rod Insertion Test STP 108,001 Quadrant Power Tilt Ratio STP 125.001 Electric Power System Weekly Test

.STP 125.002 Diesel Generator Operability Test STP 128.001 Electric Fire Pump Weekly Test STP 105.006 Safety Injection / Residual Heat Removal System Monthly Flowpath Verification Test STP 129.002 HVAC Chilled Water System Valve Operability Test

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No violations or deviations were identifie . Monthly Maintenance Observation (62703)

The inspectors observed maintenance activities of safety related systems and components to ascertain that these activities were conducted ' in accordance with approved procedures, TS and appropriate industry codes and standards. The inspectors also determined that the procedures used were adequate to control the activity, and that these activities were accomplished by qualified personne The inspectors independently verified that equipment was properly tested before being returned to service. Additionally, the inspectors reviewed several outstanding job orders. to determine that the licensee was giving priority to safety related maintenance and a backlog which might affect its performance was not developing on a given system. The following specific maintenance activities were observed:

MWR 8710215 Replace diesel generator exhaust temperature thermocouple element PMTS P0089878 Lubricate diesel fuel oil transfer pump PMTS P0088201 Check and set exhaust valve backlash PMTS P0088202 Change rocker arm lube oil filters PMTS P0088198 Inspect fuel injection pump studs i PMTS P0088028 Functional test jacket water heater pressure relief valve MWR 8700939 Investigate and repair air intake filter differential pressure transmitter alarm

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MWR 86T0202 Remove and replace charcoal filter in plenum "A" XAA0021A MWR 8700587 Replace seals and add oil to the oil pump on the spent fuel pit crane MWR 8701282 Repair and tighten latch on emergency cold pump on the main steam throttle valve MWR 87M0402 Replace oil in diesel generator "B" PMTS P77267 Inspect, clean and repair blades on the reactor building component cooling fan "B" PMTS P0077227 Prepare analysis and calculations on the reactor building charcoal clean-up unit "4A" MWR 86T0201 Collect sample from canister for carbon testing on the air handling unit No. CNG816 MWR 10747 Drain, replenish oil and lubricate the chiller valves operators on chillers A, B & C MWR 8701372 Investigate and repair ground in diesel generator field No violations or deviations were identifie . Operational Safety Verification (71707) The inspectors toured the control room, reviewed plant logs, records and held discussions with plant staff persor.nel to verify that the plant was being operated safely and in conformance with applicable requirements. Specific items inspected in the control room included:

adequacy of staffing and attentiveness of control room personnel, TS and procedural adherence, operability of equipment and indicated control room status, control room logs, tagout books, operating orders, jumper / bypass controls, computer printouts and annunciator Tours of other plant areas were conducted to verify equipment operability, control of ignition sources and combustible materials, the condition of fire detection and extinguishing equipment, the control of maintenance and surveillance activities in progress, the implementation of radiation protective controls and the physical security pla Tours were conducted during normal and random off hour period On July 22, 1987, at 10:45 PM, with the plant at 100% power, the Control Room Isolation / Emergency Ventilation System Actuate A health physics technician, while in the process of verifying the Radiation Monitoring System (RMS) set points, tapped the meter face

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for Control Room Ventilation Channel Radiation Monitor (RMA-1). 'The-gas channel high radiation alarm activated and shifted the Control Room Ventilation System to emergency recirculation mode. (This is an Engineered Safety Features System Actuation (ESF)). i 10 CFR 50.72 (b) (2) (ii), requires that an ESF actuation be reported to the NRC within four hours. The licensee's initial review of this event determined it to be not reportabl Further review of this event by licensee management on July 23, 1987, determined that it was reportable and the required report was made at 10:50 AM on July 23, 198 The licensee implemented immediate corrective action to prevent recurrence of the proble The NRC wishes to encourage and support licensee initiative for self-identification and correction of problems, and since this item meets the applicable guidance of NRC enforcement policies for licensee identified items, contained in 10 CFR 2, Appendix C, no violation will be issued for this ite On July 29, 1987, at approximately 7:10 PM, a lightning storm rendered the Integrated Fire and Security Computer inoperabl Compensatory action was taken by security. At 2:00 AM on July 30, 1987, the computer was restored with the exception of the remote Information Acquisition Cabinet (RIAC) No. 9. At this time the roving fire watch for the plant was discontinued for the areas affected by toe computer being lost. The fire patrol should have been continued for RIAC No. 9, but was not. The deficiency was discovered at 12:00 PM on July 30, 1987, and compensatory action was taken to establish roving fire patrols for the affected area. The inspectors and the licensee are currently reviewing this item to determine if the affected areas were covered by other fire detection devices. This item will be tracked as an Unresolved Item, Inadequate Fire Patrol, 87-19-01, pending completion of the revie On July 30, 1987, at 10:45 AM, the licensee determined that the Control Room Normal and Emergency Air Handling System was inoperabl This item was discovered as part of an engineering review of the Instrument Air System associated with this syste This review determined that a non-safety related check valve was used in the header between the main air. supply and the accumulator used to maintain air pressure on the actuators if instrument air pressure was inadequate. Loss of instrument air and failure of the check valve would result in the outside intake air dampers closin An electrical interlock would then deenergize the control room fan '

Upon discovery of this item, the licensee declared both systems 1 inoperable, commenced plant shutdown as required by T.S. 3.0.4, and notified the NRC. A Justification for Continued Operation (JCO) was prepared and discussed with Region II at 1:00 PM. The compensatory actions contained in JC0 provided for by passing the electrical

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interlocks to allow the fans to operate if the dampers were shut and ,

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measures to insure redundant sources of air was available to operate 1 the damper Region II concurred with the licensee's JCO. The 1 plant was returned to full power operation at_4:27 PM. The licensee j

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is currently preparing an LER on this even No violations or deviations were identifie . ESF System Walkdown (71710) -

The inspectors verified the operability of an engineered safety features (ESF)' system by performing a walkdown of the accessible portions of the Safety Injection System. The inspectors confirmed that the licensee's system lineup procedures matched plant drawings and the *as-built l

- configuration. The inspectors looked for equipment . conditions and items !

that might degrade performance (hangers and supports were operable, housekeeping', etc.) and inspected the interiors of electrical and instrumentation cabinets for debris, . loose material, jumpers, evidence of rodents, etc. The inspectors verified that valves, including instruments-tion isolation valves, were in pr;,w cosition, power was available, and valves were locked as appropriate. ine inspectors compared both local and s remote position indication )

l No violations or deviations were identifie . Onsite Followup of Events and Subsequent Written Reports (92700,93713, 93702) )

The inspectors reviewed the following Part 21 Reports and Licensee Event Reports (LER's) to ascertain whether the licensee's review, corrective i action and report of the identified event or deficiency was in conformance with regulatory requirements, technical specifications, license conditions, and licensec procedures and controls. Based upon this review the following items are closed:

LER 87-010 Failure of engineered safety features loading sequencer L l

LER 87-007 Steam generator tube misplugging (Closed) 10 CFR 21' Report 2186-02, Atwood & Morrill main steam isolation valve (itSIV) - spring failure caused by quench cracks (CERCRSB604642).

This item is the result of an inspecti m of the main steam isolation valve springs, following a low pressure seat leakage test, at Enrico Fermi Unit 2, in May 1986. Observation showed that four inner / external closure springs were broken into 2 to 7 piece Atwood & Merrill issued a letter to all affected utilities on June 13, 1986, describing the problem of broken MSIV closure springs. Attached was an inspection procedure provided by Duer Spring & Manufacturing Co. It recommended a magnetic particle inspection of MSIV springs using the wet

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continuous method with a magnaflux machin The inspectors observed the licensee's non-destructive testing of the MSIV spring These tests indicated that the springs'in use and in the warehouse at V.C. Summer were acceptable for continued us No violations or deviations were identifie ~1 Physical Security (71881)

The inspectors verified by observation, review of documentation and personnel interviews, that appropriate measures are being taken to insure the physical protection ' of the facilit The inspectors reviewed the Physical Security Plan (PSP) and verified implementation of recent changes. The. inspectors determined that adequate guards and equipment was in place to insure that the PSP was being followed. Other areas inspected included the central control and alarm station, implementation of search procedures, badging and access control. The inspectors also observed the performance of maintenance activities on security gates, doors and isolation zone No violations or deviations were identifie . Other Areas The inspectors visited and. reviewed the materials in the Public Document Room at the Fairfield' County Library in Winnsboro, on July 29,1!!87. The material was - well maintained and readily available for public us Informal' discussions with the librarian indicated that they were well supported by NRC Headquarters and had received an assistance visit by headquarters personnel the previous wee . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _