IR 05000358/1973005

Insp Rept 50-358/73-05 on 730803.No Violations Noted.Major Areas Inspected:Reactor Pressure Vessel at CBI Nuclear Co Plant in Memphis,Tn

ML20235B940
Person / Time
Site:	05000000, Zimmer
Issue date:	08/03/1973
From:	Oller R, Vetter W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:
Shared Package
ML20235B311	List: IA-87-111, Submits Rept on Plant,As Discussed in ACRS 150th Meeting on 721012-14.Listed Items Can Be Resolved During Const & Facility Can Be Constructed W/Reasonable Assurance for Operation W/O Undue Risk to Public Safety IR 05000254/1972009 IR 05000358/1972003 IR 05000358/1973001 IR 05000358/1973002 IR 05000358/1973003 IR 05000358/1973005 IR 05000358/1973006 IR 05000358/1973007 IR 05000358/1974001 IR 05000358/1974002 IR 05000358/1974003 IR 05000358/1975004 ML20235B308 ML20235B364 ML20235B401 ML20235B405 ML20235B424 ML20235B456 ML20235B461 ML20235B465 ML20235B477 ML20235B488 ML20235B507 ML20235B552 ML20235B582 ML20235B585 ML20235B588 ML20235B605 ML20235B618 ML20235B623 ML20235B649 ML20235B656 ML20235B662 ML20235B670 ML20235B679 ML20235B683 ML20235B687 ML20235B702 ML20235B708 ML20235B713 ML20235B714 ML20235B718 ML20235B720 ML20235B730 ML20235B734 ML20235B748 ML20235B754 ML20235B762 ML20235B764 ... further results
References
FOIA-87-111 50-358-73-05, 50-358-73-5, NUDOCS 8709240288
Download: ML20235B940 (7)

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i U. S. ATO:11C ENERGY CO.T!!SSION j .< DIRECT 0PATE OF REGUL', TORY OPERATIONS

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REGION III *

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l Report of Vendor Inspection

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RO Vendor Inspection Report No. 050-358/73-05 I

Vendor  : CBI Nuclear Company

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f- Memphis, Tennessee IJcensec : Cincinnati Gas and Electric Company l

Cin cinna ti , Ohio

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Zimmer l' nit, I (999-035)

License No. CPPR-88

Type of Licensec :

BWR (GE) - 810 Hwa Type of Inspection: Routine, Announced '

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Date of inspection : August 3, 1973 i 1 Dates of Previous Inspection: January 9-10, 1973

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Principal Inspector: R. E. Oller (M* * ' "# N' [' 73 w

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(Datc)

Accompanyiq Inspectors: None

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Other Accor.panying Personnel: None y

y Revjeved By: L' . E. Vett er, CSief *

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'D Reactor Construction Branch (Date)

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. SMDIARY OF FI!: DINGS c i

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Enforcement Actio '

=. Violations IJ No violations of AEC requirements were identified during the inspectio *

f- B. . Safety Matters

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No'immediate, the inspection, significant safety matters were encountered during j 1.icensee Action on Previously Identified Enforcement Matters e

No previous;1y identifier 1 enforcement matters were involve ? Design Changes

f Not applicabl _ Unusual Occurrences

f . No unusual occurrences were identifie

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Other Significant Findings i-f _ Current Findings

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j Status of k'ork V

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Discussions and visual examination of the reactor pressure vessel V (RPV) established that the fabrication was complete, the hyrdos tati:

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test was successfully corapleted, the post hydro manuf acturi:; :JT l was complete, and the RPV was "::" starped. Visual exanina:f on of y

i the vessel and closure head established that no evidence ci vork-

manship deficiency was apparent. The CLIN representative crplained that

! p$, an additional contract between the licensee and GE pr: tided

for base line UT mapping of the RPV prior to shipment. 1?e added ,

?- in, response to questioning, that the estimated target ship;ing date

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was October 1,1973, excluding unanticipated delay E Unreso]ved :ht t ers E ;r a >

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No unresolved matters were identifie (i

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Not applicable.

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}1anagement Interview The following persons atter.ded the canagement interview a: the

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conclusion of the inspectic .

_CBI Nucl ear Company (CEIN)

W. C. Oehlkers, Nuclear Quality Assurance Coordinator L. T. Green, Project Engineer ,

C. D. Pugh, Superintendent of Welding and Quality Asstrance Cencral Electric Company (GE)

S. G. llall, Resident Quality Cor. trol Representative Matters vere as discussed follows: and comments, on the part of management personnel, The inspector comentec' that examination of selected reccrds, couron to the ccepleted RPV, did not generate any questions at this tim Obse'rvation established the RPV was "N" stampe '1he CD1;; representative explained that GE had not officiclly accepted the RPV, but they expected an official acceptance soo .

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FIPORT DETAILS

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Persons Contacted

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Only the personnel listed under the Management . Interview Section of this report were contacted.during tc'c inspectio >

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- Results of Inspection Records Reviewed Process Records

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A ' review was made of Traveler Card Set No. 600A, starting with sequence 87 (release of the RPV for hydrostatic testing .

Sequence- 88A related to performance of the overpressure) test and 1ncluded inspection at design pressure. Sequence 88C related to inspection for 0 ring leakage at design pressur The balance of the sequence steps reviewed, related to MI, PT, and visual inspection of the exterior and interior surfaces of the vessel and closure head. All of the co:pleted sequence steps were identified by procedure nmnber and were signed and i dated by CBIN, GE, and the Code Inspector (wbere applicable) . Inspection Reports (1) llydrost31_c Test

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A review of the hydrostatic test data report, dated June 2, 1973, for contract No. 69-5571 (Zimmer Unit No.1) establishe?

that

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the overload pressure test and inspection at design pressure, in additicn to the 0 ring leakage test, met the test requirements of 1563 psig and 1250 psig, respectively, with i

the vessel metal tc:perature at 1000 maximu F minitum and 180 F The certification portion of the report fer the code requirements was signed by the Code Inspector, and the 0 ring leakage test inspector portion was signed by the CblS QC i

(2) NDT Reports

' Selected post hydre !OT reports (MT and PT) were reviewed which represented examination of certain vesso.1 areas and pressure retaining velds in the vesse All of the reports

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were determined ta be. complete, properly signed and dated, .

[ and indicated the test results were acceptable.

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Foc the subject vessel, no post hydro UT e.:cynation of

.the welds was mad In response to questioning, the CBIN representative explained this was not a requirement of the GE purchase specification. This phase of UT .ev.aminc-

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tion, he added, would be acc< splished during 'the base line UT mapping -(by special' contract) prior to shipment of-the RP . _Ra liograph Films Reviewed

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An examination was made of 33 out of the 62 Mtal coverage RT films of the f.inal closure girth seam between the No. I shell ring of the lower assembly and .the No. 2 ring of the upper assembly. The films were selected to sample the entire weld. The filns were made by panoramic RT techniques, using a 800-curie. cobalt 60 source. The

filts. exhibited code quality technique. No unacceptable veld defects were identified on either the films or the reader sheet. The reader sheet was cigaed and dated by CBIN, GE, and the Code Inspecto . Final Strese Relief-Records A re' view was made of the total accumulated hours of stress relief for the material in the No.1 and No. 2 shell ringst affected by the localized atress relief of the closure girth veld, in addition to the balance of welded -assemblies. During a prior' inspection of the Zimmer Unit No. I vessel fabrication, the inspector had established that th. ? BIN method for fina'l stress relief was to sequencia11y stress relief the weld secms in the vessel subassemblies, as the welding was completed. The total hours of stress relief for No.1 and No. 2 rings, and the balance of subassembly materials, was determined to be within the qualification time of 50 hours5.787037e-4 days <br />0.0139 hours <br />8.267196e-5 weeks <br />1.9025e-5 months <br /> for both .

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- the base materials and the welding procedure qualification ' CBIN Procedures Reviewed A review of the following GE approved procedures, common to the j Zic cr Unit No.1 contract, established that the procedures wero l co:plete and in accordance with AS:1E Code and GE specification j requircoent j i Welding Proceiure No. WPS-323-2F4F6, Revision 4, and qualifi- {

eation records St. 963 and No.1261 (used for welding of the ]

closure girth scam).

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were determined to be complete, properly signed and dated, i and indicated the test results were acceptabl j

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Foc the subject vessel, no post hydro UT e.:aMnation of j i the welds was mad j In response to questioning, the CBIN l representative explained this was not a requirement of '

the GE purchase specification. This phase of UT examins-tion, he added, would be acc oplished during the base line UT mapping (by special contract) prior to shipment of the RP . _Ra [f ograph Films Reviewed l

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An examination was made of 33 out of the 62 ' .tal coverage RT films of the final closure girth scam between the Nc. I shell ring of the lower assembly and the No. 2 ring of the upper assembly. The films were selected to sample the entire weld. The films were made by panoramic RT techniques, using a 800-curie cobalt 60 source. The films exhibited code quality technique. No unacceptabic weld defects 3

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were identified on either the films or the reader sheet. The reader !

sheet was cigacd and dated by CBIN, GE, and the Cc.ie Inspecto . Final Stress Relief Records

I A rdview was made of the total accumulated hours of stress relief f or the material in the No.1 and No. 2 shell rings affected by the localized atress relief of the closure girth weld, in addition to the balance of welded assemblies. During a prior inspection of j the Zirmer Unit No. 1 vessel f abrication, the inspector had established that th. ? BIN method for final stress relief was to ,

sequencia11y stress relief the weld sesms in the vessel subassemblies, I as the welding was completed. The total hours of stress relief for No. 1 and No. 2 rings, and the balance of subassembly materials, was determined to be witnin the qualification time of 50 hours5.787037e-4 days <br />0.0139 hours <br />8.267196e-5 weeks <br />1.9025e-5 months <br /> for both the base materials and the welding procedure qualification , CBIN Procedures Reviewed

A review of the following GE approved procedures , connon to the 6 Zinmer Unit No. 1 contract, established that the procedures were complete and in accordance with AS::E Code and GE specification requirement k'elding Procciure No. WPS-323-2T4F6, Revision 4, and qualifi-eation records Nc. 963 and No.1261 (used for velding of the closure girth seam).

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b. . Combined Hydrostatic. Test Procedure No. CHT-3, Revision A _

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Procedure For Cleaning Prior To And Af ter The Hydrostatic -

Test, No. CP-5, Revision i

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