IR 05000261/1982019

IE Insp Rept 50-261/82-19 on 820518-21.No Noncompliance Noted.Major Areas Inspected:Data Review & Evaluation & Main Coolant Pump Diffuser Adaptor Bolt Failure

ML20054N071
Person / Time
Site:	Robinson
Issue date:	06/15/1982
From:	Blake J, Economos N NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:
Shared Package
ML20054N067	List: IR 05000261/1982019 ML20054N066
References
50-261-82-19, NUDOCS 8207150321
Download: ML20054N071 (4)

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UNITED STATES y po C'co,Io NUCLEAR REGULATORY COMMISSION y 7 , .g t ' qg REGION il l 3 .'g \ r , C 101 M ARIE TT A ST., N.W. SUIT E 3100 o, 174 f$ ., :,, 8 ATLANTA, GEORGI A 30303

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Report No. 50-261/82-19 Licensee: Carolina Power and Light Company 411 Fayetteville Street Raleigh, NC 27602 Facility Name: H. B. Robinson Docket No. 50-261 License No. DPR-23 Inspection at H. B. Robinson site near Hartsville, South Carolina and at the Harris Energy Center near Raleigh, North Carolina Inspector: _ 'm J. Blake

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Approved by; g237, F /J~ /)-

N. Economos, ting Section Ct Da% Signed Engineering Inspection Branch Division of Engineering and Technical Programs i

SUMMARY Inspection on May 18-21, 1932 '

Area!, Inspected This routine, unannounced inspection involved 22 inspector-hours on site in the areas of inservice inspection - data review and evaluation and main coolant pump'

dif fuser adaptor bolt f ailure Results ,

Of the two areas inspected, no violations or deviations were identifie i

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8207150321 820621 PDR ADOCK 05000261 G PDR

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REPORT DETAILd ,

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. Persons Contacted

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Licensee Employees c

• R. B. Starkey, Jr. , Plant General Manager

• D. Bauer, QA/QC Project Specialist

• C. Wright, Specialist Regulatory Compliance S. Clark, Engineer W. Farmer, ISI Engineer D. Sullivan, Materials Laboratory Supervisor Other licensee employees contacted included several technicians, security ,

f orce members, and of fice personnel .

NRC Resident Inspector e

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• S. Wei se

• Attended exit interview Exit Interview The inspection scope and findings were summarized on May 21, 1982, with those persons indicated in paragraph 1 abov The plant general manager assured the inspector that bolt samples from main coolant pump "A" would be available for NRC evaluatio . Licenses Action on Previous Inspection Findings Not inspecte . Unresolved Items Unresolved items were not identified during this inspectio . Inservice Inspection - Data Review and Evaluation The inspector reviewed the nondestructive examination data for the following inservice inspections: Radiographic examination of the casing welds in main coolant pump "B" The data review included the final report from Southwest Research Institute (SwRI) including the MINAC radiographic examination log and data sheets. The inspector also reviewed the following procedures:

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(1) SwRI-NDT-400-4/1, Radiographic Examination of Nuclear Power Plant Components Utilizing the "MINAC" Syste (2) SwRI-HDT-900-8/0, Remote Visual Examination Utilizing the MINAC 1 Syste (3) IX-FE-123-1, Radiographic Film Placement and MINAC Manipulator Adjustments for Westinghouse Model 93 Reactor Coolant Pum U?trasonic examination of pressurizer welds Nos. 3, S, 7, 8 and Magnetic particle examination of reactor closure head nuts No. 27 through No. 4 Ultrasonic examination of boron injection tank welds Nos.1, 2, 3, and . Ultrasonic examination of boron injection tank bolts Nos. B-1 through B-16. (Bolts were examined in place.) Ultrasonic inspection of RC pump seal housing bolting for Loop A, bolts B-1 through B-1 Ultrasonic inspection of RC pump flange studs for loop A, studs Nos. B-1 through B-2 Magnetic particle inspection of RC pump seal housing bolting, loop A, bolts B-1 through B-1 Magnetic particle inspection of RC pump flange studs, loop A, studs Nos. B-1 through B-2 Magnetic particle inspection of reactor vessel closure studs Nos. 27 through 4 Liquid penetrant inspection of boron injection tank support welds for supports WS-1, WS-2, WS-3 and WS-4 Ultrasonic inspection of boron injection tank inlet and outlet links, welds Nos. 5, 7 and Visual inspection of main feedwater supports, A-train, supports H-1 through H-1 Visual inspection of main feedwater supports, 3-train, supports H-1 1 through H-1 Visual inspection of main feed, vater supports, C-train, supports H-1 through H-14.

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3 Ultrasonic inspection of regenerative heat exchanger welds 3, 4. 7, 8, and 1 The inspection reports were reviewed for completeness; proper certification of examination personnel; and appropriate level of review and evaluatio There were no deviations or violations as a result of this part of the

! inspectio . Main Coolant Pump Dif fuser Adaptor Bolt Failures At the time of this inspection the licensee had completed disassembly of main coolant pump A diffuser adaptor and had discovered additional bolt failures. (See RII Report 50-261/82-12, discussion on bolt failures in main l coolant pump "B". )

The bolts had been shipped to the licensee's failure analysis facilities at the Shearon Harris Energy and Environmental Center near Raleigh, NC. The inspector spent one day of the inspection at the Energy and Environmental Center reviewing the on going failure analysis work and visually inspecting the bolt samples taken from main coolant pump "A". The inspector requested that samples of failed and non-failed bolts be provided for examination by NR There were no violations or deviations discovered during this phase of the inspectio .- - -_- _ . . _ _ _ _ - _

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