IR 05000445/1978015

Forwards Insp Repts 50-445/78-15 & 50-446/78-15 on 780905-15.No Noncompliance Noted

ML20148D666
Person / Time
Site:	Comanche Peak
Issue date:	09/29/1978
From:	Seidle W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
To:	Gary R TEXAS UTILITIES CO.
Shared Package
ML17195A395	List: IR 05000445/1978015
References
NUDOCS 7811020442
Download: ML20148D666 (2)

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j p #8 %g UNITED STATES -

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4 NUCLEAR REGULATORY COMMISSION

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5* iE*' 611 RYAN PLAZA DRIVE, SUITE 1000 E o, ARLINGTON, TEXAS 76011 a. g ./

September 29, 1978 D In Reply. Refer To:

RIV Docket No. 50-445/Rpt.-78-15 50-446/Rpt. 78-15 ,

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Texas Utilities Generating' Company-ATTN: Mr. R. J. Gary, Executive

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President and General Manager 2001 Bryan Tower'

' Dallas, Texas 75201 Gentlemen:-

This ' refers to the inspection activities performed by our Resident In-spector, Mr.- R._ G. -Taylor, during the period September 5-15,1978, of *

activities authorized by NRC Construction Permit Nos. CPPR-126 and 127

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for the Comanche Peak facility, Units No. 1.and 2, and to the discussion ..

of our findings with Mr. R. G. Tolson and other members of your staff at !

the conclusion of the inspectio Areas examined during the inspection and our findings are discussed in . -

the enclosed inspection report. Within these areas, the inspection con-sisted of selective examination of procedures and representative records, 1 interviews with personnel, and observations by the inspecto Within the scope of the inspection, no items of noncompliance were identi-fie In accordance with Section 2.790 of the NRC's " Rules of practice," Part 2, Title 10, Code of Federal Regulations, a copy of this letter and the enclosed inspection report will be placed in-the NRC's Public Document Roo If the report'contains any information that you believe to be proprietary, it is necessary that you submit a written application ~ to

.this office, within 20 days of the date of this letter, requesting that-such information be withheld from public disclosure. The application must include a full statement of the reasons why it is claimed that the infonnation is proprietary. The application should be prepared so that 7E .t102 0 'N A

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' Texas Utilities _ Generating Company -2- September 29,1978

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any proprietary ihformation identified is contained in an enclosure to the application, since the application without the enclosure will also be placed in the Public Document Room. If we do not hear from you in this regard within the specified period, the report will be placed in the Public Document Roo 'I Should you have any questions concerning this inspection, we will be pleased to discuss them with yo

Sincerely,

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. C. Seidle, Chief Reactor Construction and Engineering Support Branch

Enclosure:

IE Inspection Report No. 50-445/78-15 50-446/78-15

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REGION IV==

i Report No. ~ 50-445/78-15; 50-446/78-15 i

Docket No. 50-445; 50-446 Category A2 1 l

Licensee: Texas-Utilities Generati.ng Company

- 2001 Bryan Tower Dallas, Texas 75201 Facility Name: Comanche Peak, Units 1 & 2 Inspection at: Comanche Peak Steam Electric Station, Glen Rose, Texas Inspection conducted: September 5-15, 1978 Inspector: W _ - - -

R. G. Taylor, Resident Inspector, Projects Section

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Approved: wm 9/2-9[79 W. A. Crossman, Chief, Projects Section Date Inspection Summary:

Inspection September 5-15,1978 (Report No. 50-445/78-15; 50-446/78-15)

Areas Inspected: Routine inspection by Resident inspector of safety related construction activities including review of procedures and inspection of implementation relative to installation of seismic Category I, HVAC hangers; Unit 1 containment reinforcing steel installation and Cadwelding; installation and welding of_ safety related and reactor coolant piping. The inspection in-volved fifty inspector-hours by one NRC inspecto Results: No items of noncompliance or deviations were identified.

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' DETAILS Persons Contacted Principal Licensee Employees R. G. Tolson, TUGC0 Site QA Supervisor

• J. V. Hawkins, TUGC0/G&H Product Assurance x carvisor C._ Clancy, TUGC0 QA Specialist R. V. Fleck, TUGC0/G&H Civil Inspection Supervisor

• J. B. George, TUSI Project General Manager Other Personnel B. C. Scott, Brown & Root QA Manager D. Mcdonald, Bahnson Service Co. Project QA Engineer L. R. Walker, Brown & Root QA Auditor The IE resident inspector also interviewed other contractor employees during the course of the inspectio * denotes those attending the management meetin . General Construction Area Tours The IE resident inspector toured one or more plant areas several times weekly during the reporting period to observe the progress of safety related installation work and general construction practices including housekeeping. Two tours were conducted during a portion of the licen-see's second shift to observe the type of work involved, the level of effort and the construction practices utilized. The work was found to be largely in the civil area, primarily erection of reinforcing steel with a limited amount of safety related pipe fitup and welding in progress. The work force appeared to be one-quarter to one-third that of the day shift. Although the licensee is not committed to comply with industry housekeeping standards such as ANSI N45.2.3,

" Housekeeping During the Construction Phase of Nuclear Power Plants "

it appears that he is complying with the intent in that the house-keeping is generally consistent with such standards No items of noncompliance or deviations were identifie . Installation of Seismic Category I HVAC System The IE resident inspector became aware that substantial construction activities were not being done by Brown & Root during an interview with a welder working on a support structure in the comman Control-2-

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Room area. The welder stated that he was an employee of Bahnson Service Company, had been qualified to weld by Bahnson and was issued all materials by Bahnso The IE resident inspector inquired of the TUGC0 QA staff as to the basis for the work, QA requirements, etc. The IE resident inspector was informed that Bahnson had been contracted to do the work described by Project Specification 2323-MS-85, "HVAC Ducts, Louvers and Acces-sories." The specification requires Bahnson to design, furnish materials and install the complete plant HVAC duct work and related supports including those defined as seismic, Category I. The specifi-cation further requires that Bahnson have a quality assurance system meeting the requirements of 10 CFR 50, Appendix B and several ANSI N45.2 daughter standard The IE resident inspector obtained a controlled copy of the "Bahnson Quality Field Procedures Mana 1." The IE resident inspector selected the following procedures for review: .0 01 Revision 0, " Identification and Control of Materials' .001 Revision 0, " Control of Welding Process" .001 Revision 0, " Inspection Control" .001 Revision 0, "Nonconformance Control"

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x 5.001 Revision 0, " Instructions, Procedures & Drawings" The It N denti inspector subsequently verified that all structural steel beins dilized is purchased and certified to ASME SA-36, the welding is beire eme to one Weld Procedure, BSC-20, which utilizes the SMAW process wat F-7018 and E-8018 ro The procedure has been qualified to the requin* cts of ASME,Section IX and AWS D.l.1 as have the welders themselves. The welders are issued heat traceable rods each day in heated portable rs gions from a controlled and-calibrated central rod oven. Each suppur 8 inspected and documented on an inspection report after a visual inspecticij hv Bahnson quality control p.ersonnel .

No items of noncompliance or deviations were identified.

, 4. Unit 1 Containment Wall Structure

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l The IE resident inspector selectively examined reinforcing steel mechanical splices (Cadwelds) in the containment wall at an approxi-mate elevation of 960'. The splices examined were identified as l-3-l

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AFV-169, DKV-38, EIH-1, EIH-2, EIH-3, CKV-114, CKV-119, 0V-240, APV-202, FLV-41, APV-202, ELV-40, DGD-34 and CDD These splices represent a cross section of the total splicing crews who have worked in the area and a selection of verticial, horizontal and diagonal splices, all in number 18 bar siz Each of the splices fulfilled the requirements of ASME Section III, Division 2 and the Project Specification 2323-SS-ll, "Cadweld Connectors for Reinforcing Steel,"

as to fill and apparent centering of the bar ends in the splice sleeve. The IE resident inspector reviewed the qualification and production test records for splicers AF, 0V, AP, CD and DG. The documents revealed that testing has been accomplished consistent with the requirements of the above indicated code and specificatio In conjunction with above inspection of mechanical splices, the IE resident inspector verified that the reinforcing steel in place was of the correct size and grade and spaced in accordance with Reinforcing Steel Specification 2323-5S-10 and drawing 2323-SI-0505, Revision 13,

" Reactor Building Containment Wall Outline and Reinforcement." Diagonal steel and shear bars were in the process of being installe No items of noncompliance or deviations were identifie . Safety Related and Reactor Coolant Pipe Installation and Welding The IE resident inspector observed two welds being made in safety related stainless steel piping. These were FW-5 as identified on isometric. drawing CT-1-SB-17-0 and FW-19 as identified on drawing BR-X-AB-54- The first weld is in the containment spray piping system while the second is in the boron recovery system. Both welds were being made within the parameters of Weld Procedure 88023, Revi-sion 3 as modified by Interim Change Notice 3. Modifications to the procedure were found to be in the variables identified by ASME,Section IX as nonessential such as voltage, amperage and welding speed of travel. The changes, which in effect increase heat input, are still within the maximum heat input requirements indicated by FSAR, Chapter 6.18. The IE resident inspector verified that Weld Procedure 88023 had been properly qualified as documented on Proce-dure Qualification Record 0808AA204, Revision 3. The two welders were also verified to have been qualified to the GTAW process in the thickness ranges involve The IE resident inspector verified that weld rod heats 741262 and

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04184 used in joints FW-5 and FW-19, respectively, had been tested i and certified in ar.cordance with ASME, Sections III and II (SFA5.9).

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LDuring general. plant inspection tours, the IE resident inspecto observed the methods'of handling and protecting -safety.related and reactor coolant pipe. These practices, such as keeping the stainless pipe protected' from carbon steel . temporary supports, keeping open ends tightly capped, restricting the.use of grinders and wire brushes

' to a specific material were found to be consistent with good industry

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u practic No items of noncompliance or deviations were identifie .

1 Management Interview The IE resident inspector met with the licensee representatives-(denoted in paragraph 1) on September 15, 1978, to discuss the IE '

resident inspector s observations and findings. .

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