IR 05000412/1985012

Insp Rept 50-412/85-12 on 850513-17.No Violation Noted.Major Areas Inspected:Work in Progress & Completed Associated w/safety-related Mechanical Equipment Installation & Review & Closeout of Previously Identified Items

ML20129B246
Person / Time
Site:	Beaver Valley
Issue date:	06/10/1985
From:	Durr J, Gregg H NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:
Shared Package
ML20129B231	List: IR 05000412/1985012 ML20129B228
References
50-412-85-12, NUDOCS 8507150476
Download: ML20129B246 (8)

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U.S. NUCLEAR REGULATORY COMMISSION

REGION I

Report N /85-12 Docket No. 50-412 License N CPPR-105 . Priority --

Category B Licensee: Duquesne Light Company Robinson-Plaza Building No. 2 Suite #210, PA Route 60 Pittsburgh, Pennsylvania 15205 Facility Name: Beaver Valley Power Station, Unit 2 Inspection At: Shippingport, Pennsylvania Inspection Conduqted My 13 - 17, 1985 Inspectors L 6- 7 ~M H. I. Gregg, Leed"Reac, tor Engineer date Approved b ) / b ~ /d'd

. P. Durr, /C W, Enginfering date ranch, Divi oW of Reactor Safety Inspection Summary: Inspection on May 13 - 17, 1985 (Report No. 50-412/85-12)

Areas Ii.nected: Routine, unannounced inspection of work in process and complete; vorK associated with safety-related mechanical equipment installation and the review and closeout of previously identified items. The inspection included observations of the installed equipment, review of engineering drawings a..d documentation, observation of equipment undergoing repair, QA/QC involvement and discussions with supervisory and work force personnel. The inspection involved 38 hours4.398148e-4 days <br />0.0106 hours <br />6.283069e-5 weeks <br />1.4459e-5 months <br /> on site by one region based inspecto Results: No violations were identifie M12 PDR ADOCK 050 p .

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DETAILS 1.0 Persons Contacted 1.1 Duquesne Light Company

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• L. Arch, Sr. Project Engineer R. Bisbee~ QA Engineer

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• R. Coupland, Director QC

• D. Denning, Assist. Director QC

• S. Hall, Lead Compliance Engineer

• J. Kasunick, Maint. Director Start-Up Group

• C. Kieschner, Sr. QA Engineer C. Majumdar, Assist. Director Elect. QC D. Rohm, Assist. Director QC

• R. Willauer, Licensing Engineer 1.2 Stone and Webster Engineering Company D. Ames, Mechanical QC Supervisor P. Bienick, Assist Supt. Electrical Engineering

• A. Dasenbrock, Sr. Construction Mg *H. Durkin, Supt. of Engineering J. Jaworski, Sr. Welding Engineer QC T. Leone, Lead Controls Engineer

• D. Lessard, Assist. Supt. of Engineering

• A. McIntyre, Supt. of Engineering C. Mills, Systems Engineer W. Pelzer,' Mechanical QC Inspector

• J. Ronco, Assist. Supt. Construction

• R. Wittschen, Licensing Engineer

• Denotes presence at exit meeting on May 17, 1985. U.S. Nuclear Regulatory Commission .

G. Walton, Senior Resident Inspector 2.0 Safety Related Mechanical Equipment During a tour bf the plant, the inspector selected the safety related mechanical equipment to be examined during the inspection. The equipment was:

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Main Steam Isolation Valves

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Pressurizer Piping for. Safety Valves

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Pressurizer Block Valves and PORVs

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Component Cooling Water Pumps

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2.1 Main Steam Isolation Valves (MSIVs) Installation The inspection relating to MSIVs was separated into two individual efforts: 1) the MSIV installation and engineering details are discussed within this paragraph, and 2) the inplace repair of the MSIVs, which has distinct tracking identification, is discussed in paragraph The inspector performed MSIV installation work observations, documentation verification of engineering design specifications and topical report details, and review of test records and QC

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involvemen The inspector observed that 2 valves had undergone repair (valves 2 MSS-HYV-101A and 101B) and one valve was being repaired (valve 2 MSS-HYV-101C). Each of the three valves had its internals and actuators removed and store The inspector verified that the three MSIVs are 24" ball valves with 32" end connections manufactured by Crosby Valve and Gage C (formally manufactured by Gulf and Western Mfg. Co./ Energy Products Group). The inspector reviewed the design specifications and documentation records and verified that; the valves were built to the ASME Code,Section III, Class 2; the design specification required testing of the valves; the actuators required and were environmentally tested; the valve topical report adequately described the design and operability; vendor shop inspection reports were on file, test records were on file, and QA/QC was involve Documents reviewed inciuded:

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Design Specification 2BVS-211, Addendum No. 1, March, 1985,

" Main Steam Line Trip Valves"

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Specification 2BVS-211A, Addendum No. 1, May 13, 1983, .

" Environmental Qualification Valve Actuators"

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MSIV Dwg. D 24900-3, Rev. 3 of G&W/EPG 24" MSIV

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Procurement QA Shop Inspection Reports No. 0001 dated June 28, 1983 and No. 002 dated July 26, 1985

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ASME NPV-1 forms for each of the three valves

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Venders hydrostatic and seat leakage test specifications, PS 1123 Rev. O, Addend. II, PS 1129 Rev. 1, Addend. 7, PS 1222 Rev. 2, PS 1130 Rev. 7, PS 1223 Rev. 1, PS 1174 Rev. 3, and individual test data reports

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Gulf & Western Topical report No. FSD 2538, " Nuclear Main Steam Isolation Valve Systems, dated January, 197 r;

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During the review of test records, the inspector was concerned that valve "C"'was not cycle tested and that stem packing leakage was not checked for valve "A". The licensee provided adequate information that valve "C" was cycled and that system operability verification test 2.26 B.01 and preoperational test 2.21 A.03 require observation of valves including packing leak areas and there are also require-ments for valve cycle stroke and stroke time verification for all MSIV No violation were identifie .2 Component Cooling Water Pump (CCPs)

The inspector reviewed the site QC installation package for each of the CCPs (Nos. 2CCP* P21"A", "B", and "C"), observed the installed pumps located in the NW coner of the Auxiliary building at elevation 735, and evaluated the documentation on file.

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The inspector determined from the installed equipment nameplates and documents that the pumps (Ingersoll Rand-Cameron Division with

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Westinghouse 400 H.P. motors) were. designed and built to ASME Code,Section III, Class 3 and were vendors size 10x18AA, Head 200 ft.,

RPM 1750, GPM 600 The inspector reviewed the QC inspection records for each of the CCPs and several NCRs relating to the pumps, observed the work performed to fill voids in the pump base as dispositions by the NCR, and reviewed the completed document record fil Documents reviewed included:

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Ingersoll-Rand, Cameron Pump Division general arrg Dw No. C-10x18AA86 x 39-C, Rev. 3 Site QC Inspection Reports ME-MW0049 and ME-AB-0037, of verification of installation acceptability and CCP internals disassembly and assembl NRCs Nos. 6435 and 6221 relating to a damaged carbon seal insert and volds in pump bas Site QC CDR 7070 relating to short bolts to be replace Documentation records file.

The inspector noted that the licensee identified that the pump seal l plate material was not bend tested per the specification require-ments. The inspector verified that the licensee had contacted the vender and that the NPV-1 form was in process of being updated to a i later code edition which no longer requires bend testing.

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During the records review, the inspector noted there were no hydrostatic test records or pump performance curves. The licensee provided the updated Pump Specification which had been revised to include the pump performance curve for each of the 3 pumps. The licensee additionally provided.the vendor surveillance inspection reports of the actual Hydrostatic Test Report for each pump. These licensee inputs satisfactorily addressed the inspector's concern No violations were identifie .3 Pressurizer Safety Valve (SV) Piping, Block Valves and PORVs The inspector observed the installation, reviewed drawings and applicable specifications, work performance, partially completed work and completed work relating to this equipmen Items examined included:

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Drawing No. 150-1091, SV Piping

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Drawing No. 1D99836, Westinghouse 3" Motor Operated Gate Valve

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Drawing No. 3750014 Rev. K, 3" x 6" Garrett / Air Research PORV

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Drawing No. DS-C-56963 Rev. C, Crosby 6M 6 Nozzle Type Safety Valve The inspector observed that the three separate 6"SV piping lines from the pres 'arizer were installed up to the first portion of the loop sea Er.ch of the piping ends were temporarily sealed until further work is performed. The inspector also observed that the 6" piping line from the pressurizer and the three 3" branch lines to each of three block valves and PORVs were installed and that the valves were in place and protectively wrappe The inspector verified that the installed equipment met the drawing and specification requirement No violations were identifie .0 Licensee's Activities on Previously Identified Items 3.1 (0 pen) Unresolved Item 84-16-04, Repair of MSIVs The inspector observed the machining and the polishing being performed on the Inconel 625 weld inlay of MSIV "C". The inspector reviewed the specification for the repair work, drawings, activity summary reports of discussions concerning the repair QC, Inspection records, N&Ds, and an E&DC Discussion were also held with cognizant supervisors, engineers, and machinists involved with the repai ,-

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Documents reviewed included:

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Specification 2BVS-211B, Engineering Service Scope of Work

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Activity Summary Reports of December 4, 1984 and December 6, 1984

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N&D No. 7033 and 7035A

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E&DCR No. 2P-4616 describing the MSIV modification and test and record requirements The inspector determined that the work is an ASME Section XI repair, the machining is being performed satisfactorily and there is QC coverage. It was noted that the spool packing bore on the downstream side of valve "C" was being machined approximately 7/16" longer than valves "A" and "B". (Due to the findings of a crack in the venders original repair). The additional machining will require a special venders supplied spacer ring for valve "C".

The inspector reviewed an area of concern relating to seat leakage testing upon completion of the repairs. The inspector determined that the licensee has a procedure for seat leakage testing to be performed with air or nitrogen as the test fluid. The air or nitrogen is to be injected in the valve bonnet between the two seats, whereby, both seats will be tested. The inspector verified that pressurizing the seats from the bonnet would be more conservative than pressurizing from the upstream or downstream valve end since the seat rings would not obtain additional closing force from the pressure, therefore, the inspectors determination was that the licensee's test plan is adequat Each area reviewed by the inspector was found acceptabl This item remains open pending completion of the repai .

3.2 (Closed) CDR 83-00-01, Westinghouse Gate Valve Indicating " Closed" when valve isn't fully close The inspector reviewed the documentation relating to this item as described in N&D No. 6660, Westinghouse letter ELM-W-1429 to SWEC dated February 27, 1985, and Westinghouse FCN DMWM-10559. The inspector verified that N&D 6660 requires work modifications to all three categories of valves, even those in the optional group (Westinghouse identified the valves and categorized them as mandatory, required and optional).

The inspector noted that the work on the mandated group of 6 valves was completed and that the licensee's N&D 6660 requires all the valves to be completed before the N&D can be closed. The inspector

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. verified that the licensee's N&D system provide the means for all the valves to be correcte This' item is close .3 (0 pen) CDR-85-00-02, MSIV Actuator Latching Mechanism pr'oblem (latch roller bearings not capable of design loads)

The inspector verified that the modified design (by the manufacturer-Crosby) has not been finalized to date. This activity will be reviewed when the corrective action modification is furnished and the work performe This item remains ope .4 (0 pen) Violation 83-07-01, Failure to consider Heavy Wall Fittings thickness in analyses (analyses utilize nominal wall)

The inspector reviewed the correspondence relating to this item. The Office of NRR evaluated the initial licensee's study as described in their letter of January 28, 1983, and concluded that the effects of seismic loadings on oversized fittings was not significant, however, there was concern of thermal expansion loadings. NRR requested the licensee to address 1) the impact of thermal expansion loads on equipment nozzles, and 2) the impact of the effect of oversized fittings on thermal expansion stresses for restraints and piping other than tees and elbow The licensee's letter to RI dated August 20, 1984, responded to the NRR request and provided two reports: 1) (B2-12241-142) " Specific Evaluation of Overthickness in Pipe Fittings", July,1984, and 2) (B2-12241-65) " Structural Review of Piping Analysis Including Effects of Heavy Elbows", July, 1984~.

The licensee advised the inspector that all documentation was provided to RI to enable close-out of this item. On return to the Region Office the inspector verified that the Region based specialist hasn't had time to evaluate the data due to other prioritie This item remains open pending evaluation of submitted dat .5 (0 pen) CDR 83-00-08, Excessive Thickness in Diesel Generator Exhaust

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The inspector noted that this item and the item designated as Violation 83-07-01 are intertwine The inspector reviewed the licensee's correspondence to RI of July 28, 1983 and August 19, 1983, and the RI meeting summary dated August 25, 1983, which described the CDR problem and the concerns due to the thick wall fittings and pip .. . . -. ._ --

.o-8 The inspector verified that the NRR evaluation and requested action and the licensee's report submittals of August 20, 1984, has bearing on this ite As pointed out under paragraph 3.4 the data packages provided to RI have not been reviewe This item remain; open pending evaluation of the licensee's submitted dat .0 -Independent Measurements and Observations During the inspector's observation of the in place repair machining of the Inconel 625 weld inlay of MSIV "C" valve the machined surfaces were examined. The inspector visually examined and compared the machined surfaces to the comparison finish gages and by fingernail scraping of the surfac The inspector determined the finished cut to be pnd the polished (with emory cloth) surface ~to be better than g Additionally, during the examination of MSIV parts in the storeroom, the inspector measured the ball porting, and determined it to be 21" di .0 QA/QC Interface The inspector noted there was effective QC involvement with the in process MSIV repair work, CCP pump installation, and the other areas examined during this inspection as noted in earlier sections of this repor .0 Exit Meeting The inspector met with the licensee's representatives (identified in paragraph 1.0), at the conclusion of the inspection on May 17, 1985 to summarize the findings of this inspectio At no time during this inspection was written material provided to the .

licensee by the inspector.