IR 05000483/1987011

Insp Rept 50-483/87-11 on 870414-16 & 21-23.No Violations or Deviations Noted.Major Areas Inspected:Inservice Insp Work Activities,Steam Generator Sludge Lancing & Training & Qualification Effectiveness

ML20215K343
Person / Time
Site:	Callaway
Issue date:	05/04/1987
From:	Danielson D, David Jones NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:
Shared Package
ML20215K326	List: IR 05000483/1987011 ML20215K323
References
50-483-87-11, NUDOCS 8705110161
Download: ML20215K343 (7)

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U.S. NUCLEAR REGULATORY COMMISSION

REGION III

Report No. 50-483/87011(DRS)

Docket No. 50-483 License No. NPF-30 Licensee: The Union Electric Company Post Office Box 149 St. Louis, MO 63166 Facility Name: Callaway Plant, Unit 1

Inspection At: Callaway Site, Callaway County, Missouri ,

Inspection Conducted: April 14-16 and 21-23, 1987 Inspector: D Jones d-f-87 Date Approved By:

& w D. H. Danielson, Chief

,/1 JNf7 Materials and Processes Section Date Inspection Summary Inspection on April 14-16 and 21-23,1987 (Report flo. 50-483/87011(DRS))

Areas Inspected: Routineunannouncedinspectionofinserviceinspection(ISI)

work activities, steam generator sludge lancing, and training and qualification effectiveness. (73501, 73057, 73753, 73755, 41400)

Results: No violations or deviations were identified.

i 8705110161 870504 POR ADOCK 05000483 G PDR

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DETAILS 1. Persons Contacted Union Electric Company (UE)

• J. Blosser, Plant Manager

• R. Huber, Supervisor Engineer, Performance and ISI

• D. Stepanovic, ISI Engineer T. Pettus, System Engineer (Steam Generators)

R. Myatt, QA Engineer T. Moser, Supervisor Engineer Nuclear Energy Services (NES)

A. Pennanen, Site Supervisor Westinghouse (W)

A. Immel, Eddy Current Coordinator B. Stock, Lead Analyst Hartford Steam Boiler Inspection and Insurance Company H. Potter, Authorized Nuclear Inservice Inspector- (ANII)

Nuclear Regulatory Commission

• C. Brown, Senior Resident Inspector B. Little, Resident Inspector The inspector also contacted and interviewed other licensee and

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contractor employee * Denotes those present at the final exit interview on April 23, 198 . Inservice Inspection General i This is a maintenance and fuel conservation outage. UE contracted with Westinghouse LW) to perform the steam generator eddy current inspection and with Nuclear Energy Services (NES) for the balance of the ISI except for selected visual examinations which were performed by UE QA. The ISI was conducted in accordance with the ASME Boiler and Pressure Vessel Code,Section XI, 1980 Edition, Winter 1981 Addend Steam generators B and C were eddy current inspected and the following 5 tubes were administratively plugged:

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Steam Generator B Steam Generator C 1 Row Column Row Column

$ 33 11 44 102 41 18 42 104 38 108-Although the tube indications did not exceed Technical Specification limits, it was decided by UE to plug them, since the growth rates of the indications could not be projected, due to the lack of historic dat b. Program / Procedures Review The NRC inspector reviewed the following program / procedures:

UE, Nondestructive Examination Inservice Inspection Program, EDP-ZZ-01003, Revision 4.

UE, Qualification of Quality Control Personnel For Visual Examinations to ASME Boiler and Pressure Vessel Code, QCP-ZZ-01004, Revision UE, Certification of Quality Control Personnel, QCP-ZZ-01001, Revision UE, Qualification of Quality Control Personnel for NDE Activities, No. QCP-ZZ-01003, Revision UE, Steam Generator Tubesheet Marking, No. ETP-ZZ-01303, Revision 1, (W, MRS 2.2.2 Gen-12, Revision 2).

UE, Post-Activity Sign-Off For Area Cleanliness, No. ETP-ZZ-01304, Revision 1 (W, MRS 2.2.2 Gen-6, Revision 7).

UE, S/G Primary Nozzle Dam Installation / Removal Procedure, No. ETP-ZZ-01310, Revision 0, (W, SE-SG-83-084, Revision 5).

UE, Digital Multi-Frequency Eddy Current Inspection of Preservice and Inservice Heat Exchanger Tubing, No. ETP-ZZ-01300, Revision 2 (W, MRC 2.4.2, Gen-28, Revision 2).

UE, Mechanical Plugging of Steam Generator Tubes, No. . ETP-ZZ-01301, Revision 0, (W, MRS 2.3.2, Gen-13, Revision 7).

UE, SH-10W Operating Drocedure No. ETP-ZZ-01302, Revision 1, (W, MRS 2.4.2, Gen-30, Revision 1).

UE, Visual Examination To ASME VT-1, No. QCP-ZZ-05040, Revision UE, Visual Examination to AMSE VT-2, No. QCP-ZZ-05041, Revision' .- .- - --

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NES, Quality Assurance Program Plan for Inservice Inspections, j No. 80A2929, Revision 1 .

i NES, Inservice Inspection Program Plan General Reference Text, No. 83A0977, Revision p NES, Inservice Inspection Quality Assurance Inspection Manual,

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No. 80A9021, Revision 8.

1 NES, Ultrasonic Examination Procedure General Requirements, No.-83A1005, Revision 2.

1 NES, Ultrasonic Examination Procedure For Austenitic Piping Welds, No. 83A1006, Revision NES, Ultrasonic Examination Procedure For Ferritic Piping Welds, No. 83A1007, Revision NES, Liquid Penetrant Examination, Procedure No. 83A1009, Revision 4.

f NES, Procedure For Magnetic Particle Examination, No. 83A1010, i Revision NES, Ultrasonic Examination Procedure For Pressure Welds,_ .

No. 83A1011, Revision NES, Ultrasonic Examination Procedure for Fitting To Fitting Welds, No. 83A1012, Revision 3.

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No violations or deviations were identified, c. NDE Personnel Certifications and Observation of War k Activities The NRC inspector reviewed NDE personnel certifications in i- accordance with SNT-TC-1 The NRC inspector also_ observed the work and had discussions with personnel during the following examinations:-

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Ultrasonic examination and post examination calibration check of

main feedwater system loop 1 weld numbers 2-AE-04-F006 and 2-AE-04-F007, in accordance with NES procedure no. 83A1007, Revision 1, " Ultrasonic Examination Procedure For Ferritic Piping Welds."

Ultrasonic examination and post examination calibration check of main steam loop 1, weld numbers 2-AB-01-S006-M, and 2-AB-01-S006-S, in accordance with NES procedure no. 83A1007, Revision 1, I

" Ultrasonic Examination Procedure for Ferritic Piping Welds."

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Ultrasonic examination of main steam atmospheric relief valve weld numbers 2-AB-01-F078 and 2-AB-01-F011 in accordance with NES procedure no. 83A1007, revision 1, " Ultrasonic Examination Procedure for Ferritic Piping Welds."

Eddy current calibration and examination in accordance with UE procedure no. ETP-ZZ-01300, revision 2, " Digital Multi-Frequency Eddy Current Inspection of Preservice and Inservice Heat Exchanger Tubing" of the following tubes:

Steam Generator B Row Column Row Column 42 22 48 26 43 23 50 31 44 23 50 92 44 24 47 96 44 25 46 98 45 25 41 103 46 25 40 104 46 26 37 107 46 27 35 108 47 27 35 109 Steam Generator C Row Column Row Column 1 1 1 8 1 2 1 9 1 3 1 10 1 4 1 11 1 5 1 12 1 6 1 13 1 7 1 14 No violations or deviations were identified, d. Material and Equipment Certification The NRC inspector reviewed the certification documents, relative to the following items:

Ultrasonic instruments, transducers, couplant, thermometers, calibration blocks Magnetic particle equipment and materials Liquid penetrant materials

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Eddy current calibration standards No violations or deviations were identifie Data Review The NRC inspector reviewed report documentation relative to the following:

Ultrasonic examinations

• Liquid penetration examinations Magnetic particle examinations Eddy current examinations Visual examinations No violations or deviations were identifie . Steam Generator Sludge Lancing General Tubesheet cleaning is performed to remove sludge deposits which have-accumulated on the secondary side of the tubesheet during plant operation. It is accomplished by means of injecting high pressure water (1500-2000 PSI) between the columns of tubes on top of the tubesheet. Simultaneously, water at low pressure (approximately 150 PSI) is injected through one handhole directed around the periphery of the steam generator and removed from the opposite handhole along with the high pressure flow. The action of both-streams of water provides a constant high volume washing of the tubesheet to remove deposits dislodged by the high pressure flo The water is removed from the generator, filtered and returned to a j system holding tank. The quantity (volume) of sludge removed from the steam generator is determined by the filter weighing metho Sludge lancing was perfonned by Westinghouse on four steam generators. The total wet weight of sludge removed was 45 pounds, Review cf Procedure UE, Steam Generator Tubesheet Cleaning ETP-AE-03000, Revision 2, (W, SSS 2.2.2, Gen 7, Revision 4).

No violations or deviations were identifie . Training and Qualification Effectiveness

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, An evaluation of training and qualification effectiveness was made during the inspection. The evaluation included discussions with ISI personnel and observations of ISI personnel performance during work activitie . - _ - - --

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On occasions ISI personnel have been observed during discontinuity evaluation. Their performance during such evaluation demonstrated ability to identify and evaluate discontinuities, and is indicative of effective training. The ISI personnel appear to be knowledgeable of industry practice No violations or deviations were identifie . Exit Interview The inspector met with the site representatives (denoted in persons

contacted paragraph) at the conclusion of the inspection. The inspector

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summarized the scope and findings of the inspection noted in this

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report. The inspector also discussed the likely informational content of the inspection report with~ regard to documents or processes reviewed by the inspector during the inspection. The licensee did not identify any such documents / processes as proprietar '

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