Text

1987 Inservice Insp Summary Rept for 870807-1005
	ML20234E003
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	12/17/1987
From:	Guioir D; VERMONT YANKEE NUCLEAR POWER CORP.
To:	;
Shared Package
ML20234D972	List: FVY-87-123, Forwards 1987 Inservice Insp Summary Rept for 870807-1005; ML20234E003;
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	NUDOCS 8801070368
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 ,a,                                                            1987 IN-SERVICE INSPECTION

SUMMARY

REPORT'

 .. s :
                           .                                       AUGUST 7,-1987.THROUGH OCTOBER 5, 1987
                                                                                                                .t L                                                                                                                   I l

l Prepared By: ., seeb b. 8gevoed >J////87 I' PLANT IN-SERVICE INSPECTION COORDINATOR l l 7 JApproved Ey:' M. 8 8 /2/67/sy ENGINEERING" SUPPORT SUPERVISOR '

                                    .             .                                                                l 1

5999R/1.179. !

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I TABLE OF CONTENTS j

1. INTRODUCTION

2. EXAMINATION METHODS

3. EVALUATION OF DATA

4. EXAMINATION RESULTS

5. CONCLUSIONS g ATTACHMENT A

                                                                                              .I FORM NIS-1, OWNER'S DATA REPORT FOR IN-SERVICE INSPECTIONS l

1 l 1 I i i (

l 5999R/1.179 i

.1

VERMONT YANKEE NUCLEAR POWER CORPORATION 1987 IN-SERVICE INSPECTION

SUMMARY

REPORT AUGUST 7, 1987 THROUGH OCTOBER 5, 1987

1. INTRODUCTI_O_N.

The atteched Form NIS-1, " Owner's Data Report for In-Service Inspection " describes the in-service inspections performed during 1987 at the Vermont Yankee Nuclear Power Station, Vernon, Vermont. The examinations performed were those of the first outage of the second period of the second ten-year interval. The nondestructive examination procedures used for in-service inspection were in accordance with the ASME Boiler and j Pressure Vessel Code, Section XI, " Rules for In-Service Inspection of Nuclear Power Plant Components," as referenced by the piant Technical Specifications. The areas subject to examination and the methods used were in accordance with the Vermont Yankee In-Service Inspection Program and the plant Technical Specifications. This report summarizes the components examined, the types of examinations, the nonconforming conditions noted, and the corrective actions taken. Ultrasonic, liquid penetrant, magnetic particle, radiographic, and visual examination techniques were employed to perform the required examination.

2. EXAMINATION METHODS Nondestructive examinations were performed in accordance with the procedures contained in the Yankee. Atomic Electric Company Engineering Guidelines, Book III, "In-Service Inspection NDE Procedures " or vendor procedures reviewed and approved by Yankee Atomic Electric Company. The examination procedures were reviewed and approved by personnel qualified ;

to SNT-TC-1A Level III. These procedures conform to the requirements of l ASME Section XI, 1980 Edition, Winter 1980 Addenda and the referenced

portions of ASME Section V, 1980 Edition, Winter 1980 Addenda, except i where these editions are in conflict with Technical Specification requirements. The in-service examinations were performed and evaluated by personnel qualified as provided for in Section XI. The procedures ! used for these examinations are listed in Section 10 of the NIS-1 Form.

3. EVALUATION OF DATA The examination results were reviewed at the site by personnel qualified to at least Level II in the examination discipline. Indications were evaluated to the acceptance standards defined in the Vermont Yankee Nuclear Power Station Technical Specifications.

4. EXAMINATION RESULTS A list of examinations that were performed is contained in Section 10 of the NIS-1 Form. The detailed examination data along with the calibration records, procedures, equipment certifications, and personnel certifications are maintained at the plant site. Upon completion of the corrective actions detailed in Section 12 of the NIS-1 Form, there were no remaining unacceptable conditions other than Ite.ns E and F outlined in Section 11 of this report. No continuing or follow-up items resulted from mandatory examinations performed under ASME Section XI, other than those detailed in Items E and F of Section 11 of this report.

5999R/1.179

4

5. CONCLUSIONS The scheduled inspections accomplished during the'1987 In-Service .,...

Inspection constituted at least 1/3 of the total number of inspections required to be completed during Period 2.of the second In-Service -" Inspection interval. i 5999R/1.179 l l __j

FORM NIS-1 OWNER'S DATA REPORT FOR IN-SERVICE INSPECTIONS AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES

1. Owner Vermont Yankee Nuclear Power Corp., R.D. 5, Box 169, Ferry Road, Brattleboro, VT 05301

2. Plant Vermont Yankee Nuclear Power Station. P.O. Box 157, Vernon, VT 05354

3. Plant Unit 1 4. Owner Certificate of Authorization (if required) DPR-28

5. Commercial Service Date 11/30/72 6. National Board Number for Unit None

7. COMPONENTS INSPECTED MANUFACTURER NATIONAL COMPONENT OR OR INSTALLER STATE OR BOARD l APPURTENANCE MANUFACTURER OR INSTALLER SERIAL NO. PROVINCE NO. NO.

l SAFETY CLASS 1 REACTOR VESSEL 1 Shell to flange Chicago Bridge and Iron B4698 N/A N/A weld l 11 Nozzle to vessel Chicago Bridge and Iron B4698 N/A N/A welds 11 CRD penetration / Chicago Bridge and Iron B4698 N/A N/A i pressure boundary welds l 7 Nozzle to Chicago Bridge and Iron B4698 N/A N/A i safe-end welds 4 Nozzle to Mercury Corporation N/A N/A N/A safe-end welds l 1 Vessel skirt veld Chicago Bridge and Iron B4698 N/A N/A 3 Closure head Chicago Bridge and Iron B4698 N/A N/A welds 4 Bottom head welds Chicago Bridge and Iron B4698 N/A N/A 1 Shell long weld Chicago Bridge and Iron B4698 N/A N/A 64 Vcssel closure Chicago Bridge and Iron E4698 N/A N/A head studs 16 Vessel closure Chicago Bridge and Iron B4698 N/A N/A head nuts 16 Vessel closure Cnicago Bridge and Iron B4698 N/A N/A head washers 5999R/1.179

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e FORM NIS-1 OWNER'S DATA REPORT FOR IN-SERVICE INSPECTIONS AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES

1. Owner Vermont Yankee Nuclear Power Corp., R.D. 5, Box 169, Ferry Road, Brattleboro, VT ~

05301

2. Plant Vermont Yankee Nuclear Power Station, P.O. Box 157, Vernon,_VT 05354 i l

3. Plant Unit 1 4. Owner Certificate of Authorization (if required) DPR-28 I

5. Commercial Service Date 11/30/72 6. National Board Number for Unit None

7. COMPONENTS INSPECTED (Cont.)

MANUFACTURER NATILNAL COMPONENT OR OR INSTALLER STATE OR BOARD APPURTENANCE MANUFACTURER OR INSTALLER SERIAL NO. PROVINCE NO. NO. SAFETY CLASS 1 (Cont.) REACTOR VESSEL (Cont.) 7 Vessel closure Chicago Bridge and Iron B4698 N/A N/A head ligaments Various vessel Chicago Bridge and Iron B4698 N/A N/A internals i Various vessel Chicago Bridge and Iron B4698 N/A N/A 1 internal attachments ! SAFETY CLASS 1 PIPING 26 Piping welds Per referenced isometrics N/A N/A N/A Ebasco 18 Supports / hangers Per referenced isometrics N/A N/A N/A ! Ebasco 32 Recirculation Per referenced isometrics N/A 'N/A N/A 1 pump bolts greater Ebasco than 2 inches f 2 Exams of flange Per referenced isometrics N/A N/A N/A bolting of 2 inches Ebasco or less i l 5999R/1.179 l l

FORM NIS-1 OWNER'S DATA REPORT FOR IN-SERVICE INSPECTIONS AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES

1. Owner Vermont Yankee Nuclear Power Corp.,_R.D. 5. Box 169. Ferry Road, Brattleboro, VT 05301

2. Plant Vermont Yankee Nuclear Power Station, P.O. Box 157, Vernon, VT 05354

3. Plant Unit 1 4. Owner Certificate of Authorization (if required) DPR-28

5. Commercial Service Date 11/30/72 6. National Board Number for Unit None

7. COMPONENTS INSPECTED (Cont.)

             -                                                                                                                             I MANUFACTURER                                                          NATIONAL   l COMPONENT OR                                    OR INSTALLER      STATE OR                                             BOARL     !

APPURTENANCE MANUFACTURER OR INSTALLER SERIAL NO. PROVINCE.,'N. NO. SAFETY CLASS 1 (Cont.) VALVES

11 Valve bolting Per referenced isometrics N/A N/A N/A exams 2 inches or Ebasco l less ) 10 CRD flange Per referenced isometrics N/A N/A N/A bolting exams Ebasco 2 inches or less SAFETY CLASS 2 VESSELS 1 Nozzle to vessel Per referenced isometrics N/A N/A N/A weld (reinforcement Ebasco ring to vessel and nozzle) l 1 Welded attachment Per referenced isometrics N/A N/A N/A I Ebasco I J PIPING 12 Piping welds Per referenced isometrics N/A N/A N/A Ebasco 42 Hangers / supports Per referenced isometrics N/A N/A N/A Ebasco 1 Pump welded Per referenced isometrics N/A N/A N/A attachment Ebasco 5999R/1.179 l

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l' FORM FIS-1 (Back) ) I

8. Examination dates August _7, 1987 to October 5, 1987. '

9. Inspection intervals from 6/17/83 to 6/17/93.

10. Abstract of examinations. Include a list of examinations and a statement concerning status of work required for current interval.

11. Abstract of conditions noted.

1

12. Abstract of corrective measures recommended End taken. )

                                                                                                      -l We certify that the statements made in this report are correct and the                    -

examinations and corrective measures taken conform to the rules of the ASME Code, Section XI. Date 9% /8 UQ7 Signed vermont yekae p.p.c. By / ~ r (/ Plant Manager l Certificate of Authorization No. (if applicable) DPR-28 Expiration Date 12/11/2007 l CERTIFICATE OF IN-SERVICE INSPECTION I, the undersigned, holding a valid comission issued by the l National Board of Boiler and Pressure Vessel Inspectors and/or the ' State of Vermont and employed by Hartford Steam Boiler I&I Company of Hartford, Connecticut have inspected the components describ6d in this Owner's Data Report during the period 08-o7- 87 to to-o5 -87, and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Data Report in accordance with the requirements of the ASME Code, Section XI. By signing this certificate, neither the inspector nor his employer makes any warranty, expressed or. implied, concerning the examinations and corrective measures described in this Owner's Data Report. Furthermore, neither the Inspector nor his employer shall ] be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection. Date 28 DscmAM 19 & 7 j

                                   ) 2't h commissions N6 750 S j

Inspector's/ Signature National Board, State, Province, and No. j i 4 5999R/1.179 I

FORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS I AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES l I

1. Owner Vermont Yankee Nuclear Power Corp., R.D. 5, Box 169, Ferry Road, Brattleboro, VT-05301

2. Plant Vermont Yankee Nuclear Power Station, P.O. Box 157, Vernon, VT 05354

3. Plant Unit 1 4. Owner Certificate of Authorization (if required) EPR-28

5. Commercial Service Date 11/30/72 6. National Board Number for Unit None

10. ABSTRACT OF EXAMINATION A. Nondestructive Examinations LINE NO. AND/0R CATEGORY COMPONENT DESCRIPTION COMPONENT IDENTIFICATION EXAMINATION ISOMETRIC SAFETY CLASS 1 Reactor Vessel B-A Vessel shell longitudinal D-1 UT H-22 weld Closure head meridional B-1 UT H-22 weld Closure head A-B UT h-22 circumferential weld Dollar piste H-J UT H-22 circumferential weld Dollar plate J-1 UT H-22 longitudinal welds J-2 (Note 2) UT H-22 Bottom head meridional H-1 UT H-22 weld 1 Vessel shell to flange C-D UT H-22 )'

weld Closure head to flange B-C UT, MT (radius) H-22 weld B-D Nozzle to vessel welds N1A UT H-22 i N1B UT H-22 N2A UT H-22 5999R/1.179 j 4 l

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TORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES

1. Owner Vermont Yankee Nuclear Power Corp., R.D. 5, Box 169, Terry Road, Brattleboro, VT 05301

2. Plant Vermont Yankee Nuclesr Power Station, P.O. Box 157,.Vernon, VT 05354

3. Plant Unit 1 4. Owner Certificate of Authorization (if required) DPR-28

5. Commercial Service Date 11/30/72 6. National Board Nurler for Unit None

10. ABSTRACT OF EXAMINATION A. Nondestructive Examinations LINE NO. AND/0R CATEGORY COMPONENT DESCRIPTION COMPONENT IDENTIFICATION EXAMINATION ISOMETRIC SAFETY CLASS 1 Reactor Vessel (Cont.)

B-D Nozzle to vessel welds N2B UT H-22 (Cont.) N2G UT H-22 N4A UT H-22 N4B UT H-22 N4C UT H-22 N4D UT H-22 N5A UT H-22 NSB UT H-22 B-D Nozzle inner radius N1A UT H-22 N1B UT H-22 N2A UT H-22 N2B UT H-22 N2G UT 11-22 N4A UT H-22 N4B UT H-22 N4C UT H-22' 5999R/1.179

f - l FORM NiS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS I AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES !

1. Owner Vermont Yankee Nuclear Power Corp., R.D. 5, Box 169, Ferry Road', Brattleboro, VT 05301 D

2. Pinnt Vermont Tankee Nuclear Power Station, P.O. Box 157, Vernen, VT 05354

3. Plant Unit 1 4. Owner Certificate of Authorization (if required) DPR-28

5. Commercial Service Date 11/30/72 6. National Board Number for Unit None

10. ABSTRACT OF EXAMINATION A. Nondestructive Examinations LINE NO. AND/OR CATEGORY COMPONENT DESCRIPTION COMPONENT IDENTIFICATION EXAMINATION ISOMETRIC SAFETY CLASS 1 Reactor Vessel (Cont.)

B-D Nozzle inner radius N4D UT H-22 (Cont.) NSA UT H-22 NSB UT H-22 B-E CRD penetrations and 06-15 VT-2 H-25, H-26 control rod housing pressure boundary welds 10-39 VT-2 H-25. H-26 18-07 VT-2 H-25, H-26 22-03 VT-2 H-25, H-26 26-11 VT-2 H-26, H-26 30-11 VT-2 H-25, H-26 38-23 VT-2 H-25, H-26 B-7 Nozzle to safe-end welds N2G-SE UT, PT 5920-6622 N5A-SE (Note 3) UT, PT H-22 NSB-SE (Note 3) UT, PT H-22 1 N6A-SE RT, PT H-22 ) 5999R/1.179 l

FORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS AS REQUIRED BY THE EkOVISIONS OF THE ASME CODE RULES

1. Owner Vermont Yankee Nuclear Power CoIp., R.D. 5, Box 169. Ferry Road, Brattleboro, VT 05301

2. Plant Vermont Yankee Nuclear Power Station, P.O. Box 157, Vernon, VT 05354

3. Plant Unit 1 4. Owner Certificate of Authorization (if required) DPR-28

5. Commercial Service Date 11/30/72 6. National Board Number for Unit None

10. ABSTRACT OF EXAMINATION A. Nondestructive Examinations LINE NO. AND/0R CATEGORY COMPONENT DESCRIPTION COMPONENT IDENTIFICATION EXAMINATION ISOMETRIC SAFETY CLASS,J.

heactor Vessel (Cont.) B-F Nozzle te safe-end welds N6B-SE RT, PT H-22 (Cont.) N7-SE RT, PT H-22 N10-SE PT H-22 N11A-SE (Note 5) PT H-22 N11B-SE (Note 5) PT H-22 N12A-SE (Note 5) PT H 22 N12B-SE (Note S) PT H-22 B-F Piping-nominal pipe size MF-6A MT H-11 greater than 4 inches, dissimilar metal butt welds B-G-1 Vessel closure head nuts 12, 13, 20, 21, 22, MT 5920-485 36, 27, 38, 39, 50, 51, 53, 54, 58, 59, 60 , l Vessel closure head studs 14, 15, 16, 17, 18, 19 MT 5920-485 Vessel closure head studs 1 through 64 UT 5920-485 5999R/1.179

4 FORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS

                                 .AS REQUIRED BY THE PROVISIONS OF TUE ASME CODE RULES
      .l . Owner Vermont Yankee Nuclear Power Corp. , R.D. 5, Box 169, Ferry Road, Brattleboro, VT 05301   1

1. ?lant Vermont Yankee Nuclear Power Station, P.O. Box 157, Vernen, VT 05354 i

3. Plant Unit 1 4. Owner Certificate of. Authorization (if ruquired) DPR-28

5. Commercial Service Date 11/30/72 6. National Board Number for Unit None

10. ABSTRACT OF EXAMINATION A. Nondestructive Examinations LINS NO. AND/0R CATECORY COMPONENT DESCRIPTION COMPONENT IDENTIFICATION EXAMINATION ISOMETRIC

SAFETY CLASS 1 Reactor Vessel (Cont.) B-G-1 Threads in flange 30 through 36 UT Hw21 I (Cont.) (ligament area) issel closure head 12, 13, 20, 21, 22, 36, VT-1 H-21 j washers and bushings 1 37, 38, 39., 50, 51, 52, ! 53, 58, 59, 60 Pumps Reactor recirculation "A" pump studs VT H-27 pump studs 1 through 16 l "B" pump studs UT H-27 1 through 16 B-G-1 Reactor recirculation "A" pump studs and VT-1 H-27 pump nuts, bushings, washers 1 through 16 and washers "B" pump studs and VT-1 H-27 washers 1 through 16 B-G-2 Reactor vessel bolts, Nozzle N6A flange VT-1 5920-107 studs, and nuts bolting upper and lower 5999R/1.179

i FORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES i

1. Owner Vermont Yankee Nuclear Power Corp., R.D. 5, Box 169, Ferry Road Brattleboro, VT 3 ,

05301

2. Plant Vermont Yankee Nuclear Power Station, P.O. Box 157, Vernon, VT 05354

3. Plant Unit 1 4. Owner Certificate of Authorization (if required) DPR-28 1 _

5. Commercial Service Date 11/30/72 6. National Board Number for Unit None

10. ABSTRACT OF EXAMINATION A. Nondestructive Examinations LINE NO. AND/0R CATEGORY COMPONENT DESCRIPTION COMPONENT IDENTIFICATION EXAMINATION ISOMETRIC SAFETY CLASS 1 Pumps (Cont.)

B-G-2 Reactor vessel bolts. Noztle N7 flange VT-1 5920-107 (Cont.) studs, and nuts bolting Valves Valve bolts, studs, and RHR V10-17 VT-1 H'4 nuts J RHR V10-88 VT-1 H-4 RHR V10-25B VT-1 H-5 l RER V10-46A VT-1 H-6 I i RHR V10-46B VT-1 H-5 RHR V10-25A VT-1 E-6 RHR V10-81A VT-1 H-6 M3 RV2-71B VT-1 H-15 MS RV2-71D VT-1 H-17 MS SV2-70B VT-1 H-17 CS V14-12B VT-1 H-11 5999R/1.179

FORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS , AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES. l 1 I

1. Owner Vermont Yankee Nuclear Power Corp., R.D. 5, Box 169, Ferry Road, Brattleboro, VT 05301 i

1. Plant Vertoont Yankee Nuclear Power Station, P.O. Box 157, Vernon, VT 05354 j l

3. Plant Unit 1 4. Owner Certificate of Authorization (if required) DPR-28 I

5. C0mmercial Service Date 11/30/72 6. National Board Number for Unit None

10. ABSTRACT OF EXAMINATION 1

A. Nondestructive Examinations l LINE NO. AND/0R CATEGORY COMPONENT DESCRIPTION COMPONENT IDENTIFICATION EXAMINATION! ISOMETRIC SAFETY CLASS 1 l Valves (Cont.) l CRD housing bolts, studs, 22-15 VT-1 5920-2410 and nuts (reinstalled in CRD 34-35) l 34-35 VT-1 5920-2410 l l (reinstalled in I i CRD ?4-11) 14-31 VT-1 5920-2410 (reinstalled in i CRD 30-11) l 26-15 VT-1 592D-2410 (reinstalled in CRD 14-31) l 34-23 VT-1 5920-2410 l (reinstalled in CRD 26-15) 22-35 VT-1 5920-2410 (reinstalled in CRD 34-23) 18-31 VT-1 5920-2410 (reinstalled in CRD 22-35) l 5999R/1.179

l

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                        -FORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES                        l
 '1. Owner Vermont Yankee Nuclear Poder Corp. , R.D. 5, Box 169, Ferry Road, Brattleboro, VT 05301

2. Plant Vermont Yankee Nuclear Power Station, P.O. Box 157 Vernon, VT 05354

3. Y1 ant Unit __ 1 4. Owner Certificate of Authorization (if required) DPR-28 f

5. Commercial Service Date 11/30/72 6. National Board Number for Unit None

10. ABSTRACT OF EXAMINATION A. Nondestructive Examinations LINE NO. AND/OR CATEGORY COMPONENT DESCRIPTION COMPONENT IDENTIFICATION EXAMINATION ISOMETRIC SAFETY CLASS _1 Valves (Cont.)

CRD housing belts, studs, 30-11 VT-1 5920-2410 and nuts (reinstalled in (Cont.) CRD 30-39) 30-39 VT-1 5920-2410 (reinstalled in , CRD 22-15) 14-11 VT-1 5920-2410 (reinstalled in CRD 18-31) Reactor Vessel B-H Support skirt to vessel None MT, PT 5920-548 weld, 64 inches OD, 430 inches ID Piping B-J Pressure retaining welds Line RHR-32 in piping 32-11 MT, UT H-4 Line MS-7A A-5 PT, UT H-14 l A-SA PT, UT H-14 l 5999R/1.179 l l 1 ! 1

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l I FORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS AS REQUIRED BY THE PROVISIONS OF THE ASME CODE GULES i l

1. Owner Vermont Yankee Nuclear Power Corp., R.D. SpBox 169. Ferry Road, Brattleboro, VT 05301

2. Plant Vermont Yankee Nuclear Power Station, P.O. Box 157 Vernon, VT 05354

3. Plant Unit 1 4. Owner Certificate of Authorization (if required) DPR-28 i

5. Commercial Service Date 11/30/72 6. National Boar:d Number for Unit None j

10. ABSTRACT OF EXAMINATION

        /. . Nondestructive Examinations l

l LINE NO. AND/0R CATEGORY COMPONENT DESCRIPTION COMPONENT IDENTIFICATION EXAMINATION ISOMETRIC SAFETY CLASS 1 l Piping (Cont.) B-J Pressure retaining Line MS-7A (Cont.) (Cont.) welds in piping j A-5D PT, UT H-14 A-5F PT, UT H-14 A-5G PT, UT H-14 I l J Line MS-7B j l B-5H MT, UT H-15 ) I B-6 MT, UT H-15 B-6A MT, UT K-15 B-6B MT, UT H-15 l B-6C NT, UT H-15 Line MS-7C ; i C-6C MT, UT H-16 l C-7 MT, UT H-16 ) 5999R/1.179

=_ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ - . FORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES

~~

1. Owner Vermont Yankee Nuclear Power Corp., R.D. 5, Box 169. Ferry Roade Brattleboro, VT 05301

2. Plant Vermont Yankee Nuclear Power Station, P.O. Box' 157, Vernon, VT 05354

3. Plant Unit 1 4 Owner Certificate of Authorization (if required) DPR-28 1

5. Commercial Service Date 11/30/72 6. National Board Number for Unit None

10. ABSTRACT OF EXAMINATION l A. Nondestructive Examinations LINE NO. AND/0R CATEGORY CtMPONENT DESCRIPTION COMPONENT IDENTIFICATION EXAMINATION ISOMETRIC S[FETY CLASS 1 Piping (Cent.)

1 B-J Pressure retaining Line MS-7D I (Cont.) welds in piping D-ll MT, DT H-17 )

                                                                                                                                .1 Line FDW-20 i

F3A-SB MT, UT H-8 1 Line FDW-21 ! F2A-SA PT, UT H-7 F2A-SB PT, UT H-7 F-2A PT, UT H-7 N4L-SW MT, UT H-7 Core Spray "A" M-F5 PT, UT H-ll Core Spray "B" M-F5 PT, UT H-12 M-F5A PT, UT H-12 5999R/1.179

     .                                                                                               1
     ,.                                                                                              I FORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS                     l
                          /S REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES

1. Owner Vermont Yankee Nuclear Power Corp., R.D. 's, Box 169, Ferry Road, Brattleboro, VT 05301

2. Plant Vermont Yankee Nuclear Power Station, P.O. Box 157, Vernon, VT 05354

3. Plant Unit 1 4. Owner Certificate of Authorization (if required) DPR-28

5. Commercial Service Date 11/30/72 6. National Board Number for Unit None

10. ABSTRACT OF EXAMINATION A. Nondestructive Examinations LINE NO. AND/0R l CATECORY COMPONENT DESCRIPTION COMPONENT IDENTIFICATION EXAMINATION ISOMETRIC SAFETY CLASS 1 Piping (Cont.)

B-J Pressure retaining HPCI MS-4A (Cont.) welds in piping F-1B MT, UT H-20 Recirculation BS-1 (Note 7) UT, PT 5920-6622 B-N-1 Vessel interior Core spray sparger VT-3 None and downcomers Jet putap assemblies VT-3 None B-N-2 Interior attachments Core spray sparger VT-1 None and core support attachment welds structures to vessel l l Jet pump assemblies VT-1 None attachment welds l to vessel B-0 Pressure retaining CRD housing to welds in control flange welds rod housings 02-27 PT H-26 l 30-39 PT H-26 5999R/1.179

FORM NIS-1 OWNER'S DATA REP 0hT FOR INSERVICE INSPECTIONS AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES

1. Owner Vermont Yankee Nuclear Power Corp., R.D. 5. Box 169, Ferry Road, Brattleboro, VT 05301

2. Plant Vermont Yankee Nuclear Power Station, P.O. Box 157, Vernon, VT 05354

3. Plant Unit 1 4. Owner Certificate of Authorization (if required) DPR-28

5. Commercial Service Date 11/30/72 6. Nations 1 Board Number for Unit None

10. ABSTRACT OF EXAMINATION A. Nondestructive Examinations l

LINE NO. AND/0R CATEGORY COMPONENT DESCRIPTION COMPONENT IDENTIFICATION EXAMINATION ISOMETRIC SAFETY CLASS 1 Piping (Cont.) l B-0 Pressure retaining CRD housing to I (Cont.) welds in control stub tube welds l rod housicgs l 02-27 PT H-26 30-39 PT H-26 F-C Nonwelded support MS Line "A" components l MS-2 VT-3/4 H-14 MS-3 VT-3/4 H-14 MS-6 (Note 6) VT-3/4 H-14 MS Line "B" MS-13 VT-3/4 H-15 MS-14 VT-3/4 H-15 MS-15 VT-3/4 H-15 MS-16 VT-3/4 H-15 MS Line "D" MS-30 VT-3/4 H-17 MS-31 VT-3/4 H-17 MS-32 VT-3/4 H-17 MS-35 (Note 4) VT-3/4 H-17 5999R/1.179

l FORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES

1. Owner Vermont Yankee Nuclear Power Corp., R.D. 5, Box 169, Ferry Road, Brattleboro, VT 05301

2. Plant Vermont Yankee Nuclear Power Station, P.O. Box 157, Vernon, VT 05354

3. Plant Unit 1 4. Owner Certificate of Authorization (if required) DPR-28

5. Commercial Service Date 11/30/72 6. National Board Number for Unit None

10. ABSTRACT OF EXAMINATION A. Nondestructive Examinations LINE NO. AND/OR j CATEGORY COMPONENT DESCRIPTION COMPONENT IDENTIFICATION EXAMINATION ISOMETRIC SAFETY CLASS 1 Piping (Cont.)

F-C Nonwelded support FW Line "A" l; (Cont.) components t FW-1 VT-3/4 H-7 FW-2 VT-3/4 H-7 FW-7 VT-3/4 H-7 I FW Line "B" VW-12 VT-3/4 P-8 HPCI MS-4A HPCI-l VT-3/4 H-20 , i j HPCI-2 VT-3/4 H-20 Reactor Cleanup l 1 CU-2 (Note 6) VT-3/4 H-13 I 5999R/1.179 i l

FORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES

1. Owner Vermont Yankee Nuclear Power... Corp., R.D. 5, Box 169, Ferry Road, Brattleboro, VT 05301

2. Plant Vermont Yankee Nuclear Power Station, P.O. Box 157, Vernon, VT 05354

3. Plant Unit 1 ___ 4. Owner Certificate of Authorization (if required) DPR-28

5. Commercial Service Date 11/30/72 6. National Beard Number for Unit None 1.0. ABSTRACT OF EXAMINATION I A. Nondestructive Examinations l

LINE NO. AND/OR CATEGORY COMPONENT DE3CRIPTION COMPONENT IDENTIFICATION EXAMINATION ISOMETRIC SAFETY CLASS 2 C-B Pressure retaining RHR Heat nozzle welds in Exchanger "A" i vessels A-N4 VT-1, MT I-20 C-C Integral attachments RHR Heat for vessels, piping, Exchanger "A" pumps, and valves A-RHR-CC-3 MT I-21 C-C Integral attachments RHR Pump "C" for vessels, piping, pumps, and valves P-10-1C PT, MT None C-F Pressure retaining RHR-1A welds in piping S-3 MT I-7A S-18 MT I-7A RHR-1B S-11 MT I-7B RHR-2B S-10 MT I-9 RHR-3C l

F-11 MT I-10A 5999R/1.179 1 1 i

              -                                                                                                           1
   .+                                                                                                                    j FORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIDFS AS REQUIRED AY THE PROVIS10NS OF THE ASME CODE RULES l

1. Owner Vermopt_ Yankee Nuclear Power Corp., R.D. 5, Box 169, Ferry Road, Brattleboro, VT l 05301 )

2. Plant Vermont Yankee Nuclear Power Station, P.O. Box 157 Vernon, UT 05354 j

3. Plant Unit 1 4. Owner Certificate of Authorization (if required) DPR-28

5. Commercial Service Date 11/30/72 6. National Board Number for Unit None 3 I

10. ABSTRACT OF EXAMINATION A. Nondestructive Examinations j

{ LINE NO. AND/0R ' CATEGORY COMPONENT DESCRIPTION COMPONENT IDENTIFI_ CATION EXAMINATION ISOMETRIC l SAFETY CLASS 2 j C-G Pressure retaining RER-6 welds in piping (See Note 8) S-4 MT I-12 l RRR-40 l l S-11 MT I-17 ; S-26 MT I-17 i HPCI MS-4B I S-5 MT, UT I-2 F-8 MT, UT I-2 F-14 MT. UT I-2 HPCI 15B S-4 MT, UT I-4 F-C Nonwelded support HPCI 15B components H-31 VT-3 I-4 H-32 VT-3 I-4 HD-22B VT-3/4 I-4 H-128 VT-3/4 I-4 HD-22D VT-3 I-4 5999R/1.179

FORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS AS . REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES 1$~ Owner Vermont Yankee Nuclear Power Corp., R.D. 5, Box 169 Ferry Road. Brattleboro, VT 05301

2. Plant Vermont Yankee Nuclear Power Station, P.O. Box 157 Vernon, VT 05354 ,

3. Plant Unit 1 4. Owner Certificate of Authorization (if required) DPR-28

5. Commercial Service Date 11/30/72 6. National ~ Board Number for Unit None

10. ABSTRACT OF EXAMINATION A. Nondestructive Examinations LINE NO. AND/0R CATECORY COMPONENT DESCRIPTION COMPONENT IDENTIFICATION EXAMINATION ISOMETRIC SAFETY CLASS 2 F-C Nonwelded support HPCI MS-4B (Cont.) components H-6 VT-3 I-2 HD-103C VT-3/4 I-2 HD-8A VT-3 I-2 4

HD-6 VT-3/4 I-2 HD-103GN VT-3/4 I-2 H-A10 VT-3 I-2 H-103B (Note 6) VT-3/4 I-2 HPCI Cross-Connect HD-201 VT-3, PT I-4 HD-202 (Note 4) VT-3, PT I-4 i RHR 1A ; J H-181 VT-3 I-7A H.182 VT-3 I-7A 5999R/1.179 l I

FORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES

1. Owner Vermont Yankee Nuclear _ Power Corp., R.D. 5, Box 169 Ferry Road, Brattleboro, VT 05301

2. riant Vermont Yankee Nuclear Power Station, P.O. Box 157, Vernon, VT 05354

3. Plant Unit 1 4. Owrer Certificate of Authorization (if required) DPR-28 __

5. Commercial Service Date 11/30/72 6. National Board Number for Unit None

10. ABSTRACT OF EL\MINATION A. Nondestructive Examinations LINE NO. AND/OR CATEGORY COMPONENT DESCRIPTION COMPONENT IDENTIFICATION EXAMINATION ISOMETRIC SAFETY CLASS 2 F-C Nonwelded support RHR 1B (Cont.) components H-22 VT-3 I-7B H-185D VT-3 I-7A RHR 2A H-183 (Note 6) VT-3/4 I-8 RHR 2B HD-127L VT-3/4 I-9 HD-127J VT-3 I-9 HD-127F VT-3 I-9 RHR 3C HD-197A VT-3 I-10A HD-197B VT-3/4 I-10A RHR 6 HD-187C VT-3/4 .I-12 H-156 VT-3 I-12 HD-200B VT-3 I-12 H-187 VT-3 I-12 5999R/1.179

FORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES i I

1. Owner Vermont Yankee Nuclear Power Corp., R.D. 5, Box 169. Ferry Road, Brattleboro, VT

                                                 '                                           05301

2. Plant V_ermont Yankee Nuclear Power Station, P.O. Box 157, Vernon.-VT 05354

3. Plant Unit _ 1 4. Owner Certificate of Authorization (if required) DPR-28 1

5. Commercial Service Date 11/30/72 6. National Board Number for Unit None i

10. ABSTRACT OF EXAMINATION A. Nondestructive Examinations LINE NO. AND/0R CATEGORY COMPONENT DESCRIPTION COMPONENT IDENTIFICATION _ EXAMINATION ISOMETRIC SAFETY CLASS 2 F-C Nonwelded support RHR 10 (Cont.) components H-193 (Note 6) VT-3/4 I-15 RHR 15 H-98A (Note 6) VT-3/4 I-16 H-98B VT-3/4 I-16 RHR 39 l HD-2 VT-3 I-18 HD-8B V 3 I-18 HD-18C VT-3 I-18 l HD-18R VT-3 I-18 HD-18M VT-3 I-18 RHR 40 HD-32N VT-3 I-17 j HD-28 VT-3 I-17 HD-25 VT-3 I-17 j 4

H-160 VT-3 I-17 5999R/1.179

FORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES

1. Owner1V rmont Yankee Nuclear Power Corp., R.D. 5. Box 169. Ferry Road Brattleboro. VT 05301

2. Plant Vermont Yankee Nuclear Power Station. P.O. Box 157. Vernon. VT 05354

3. Plant Unit 1 4. Owner Certificate of Authorization (if required) DPR-28

5. Commercial Service Date 11/30/72 6. National Board Number for Unit None

10. ABSTRACT OF EXAMINATION ;

d A. Nondestructive Examinations i LINE NO. AND/OR CATEGORY COMPONENT DESCRIPTION COMPONENT IDENTIFICATION EXAMINATION ISOMETRIC SAFETY CLASS 2 F-C Nonwelded support RHR "B" (Cont.) components H-103 VT-3 H-5 i 5999R/1.179 l l l

FORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES

1. Owner Vermont Yankee Nuclear Power Corp., R.D. 5 Box 169. Ferry Road, BrAttleboro, VT 05301

2. Plant Vermont Yankee Nuclear Power Station, P.O. Box 157, Vernon, VT 05354

3. Plant Unit 1___ 4. Owner Certificate of Authorization (if required) DPR-28__

5. Ccomercial Service Date 11/30/72 6. National Board Number for Unit None

10. ABSTRACT OF EXAMINATIO.N B. Hydrostatic Tests

1. A RCIO System Test No. 1 was performed including the RCIC pump suction line from the RCIC-41 and RCIC-19 valves to the RCIC pump discharge RCIC-20 valve. This is an ASME Section XI System Pressure Test in accordance with IWC-5210.

2. A RCIC System Hydrostatic Test No. 3 was performed on the four-inch RCIC Line 8B. This is an ASME Section XI System Pressure Test in accordance with IWC-5210 which also included I hydrostatic test requirements imposed as a result of replacement of RCIC Valve 22.

3. A RCIC System Hydrostatic Test No. 4 was performed including the RCIC vacuum pump discharge line to the torus between valves SCC-13-10 and V13-38. This is an ASME Section XI System l Pressure Test la accordance with IWC-5210. '

l

4. A RCIC System Hydrostatic Test No. 5 was performed including the RCIC turbine exhaust condensing line from Valve RCIC-28 to Valve RCIC-37. This is an ASME Section XI System Pressure Test in j

accordance with IWC-5210.

5. A HPCI System Hydrostatic Test No. I was performed including the HPCI pump suction line from the HPCI-58 valve to the HPCI-57 valve. This is an ASME Section XI System Pressure Test in accordance with IWC-5210.

l

6. A HPCI System Hydrostatic Test No. 3 was performed including the HPCI pump discharge line from the HPCI-20 valve to the HPCI-19 valve. This is an ASME Section XI System Pressure Test in accordance with IWC-5210. 1

7. A HPCI System Hydrostatic Test No. 4 was performed including the HPCI pump suctica line from the HFCI-57-and HPCI-32 valves through the HPCI pump to the HPCI-20 and HPCI-25 valves. This is an ASME Section XI Syster. Pressure Test in accordance with IWC-5210.

5999R/1.179

FORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES

1. Owner Vermont Yankee Nuclear Power Corp., R.D. 5, Sox 169, Ferry Road, Brattleboro, VT 05301

2. Plant Vermont Yankee Nuclear Power Station, P.O. Box 157, Vernon, VT 05354 1

3. Plant Unit 1 4. Owner Certificate of Authorization (if required) DPR-28 _

5. Commercial Service Date 11/30/72 6. National Board Number for Unit None .

t

8. A HPCI System Hydrostatic Test No. 5 was performed including the HPCI turbine exhaust drain line frma the HPCI-56 valve to the '

HPCI-13 valve. This is an ASME Section XI System Pressure Test in accordance with IWC-5210. c

9. A HPCI System Hydrostatic Test No. 6 was performed including the HPCI pump drain lines from the HPCI-50A valve to the HPCI-147A . ,

and HPCI 147B valves. This is an ASME Section XI System Pressure Test in accordance with IWC-5210.

10. An RHR System Hydrostatic Test No. 2 Section I was performed including the RHR suction lines from the RHR-13 valve and RHR 17 l

valve to the RHR pump discharge RHR-47 valve (Subsystem A). This is an ASME Section XI System Pressure Test in accordance with IWC-5210. .

11. An RHR System Hydrostatic Test No. 2 Section II was performed including the RHR suction lines from the RHR-13 valve and RHR 17 valve to the RHR pump discharge RHR-47 valve (Subsystem B).

This is an ASME Section XI System Pressure Test in accordance with IWC-5210. % Notes (to Section 10)

1. Referenced isometric drawings are contained in the Vermont Yaakee In-Service Inspection Program or, if under development, will be included in the next revision.

2. Category B-A Dollar Plate Longitudinal Weld No. J-2 is an additional exam performed that was not originally scheduled for this outage.

3. Category B-F Nozzle to Safe-End Weld Nos. NSA-SE and N5B-SE are inspections of weld overlay repair areas.

4. Additional examination performed in accordance with IWC-2340.

4

5. Base line examinations performed in accordance with IWA-7000 as a result of Reactor Water Level System modifications performed in accordance with EDCR 85-403.

5999R/1.179 - s ,

1 FORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS l AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES .i 1

1. Owner Vermont Yankee Nuclear Power Corp., R.D. 5, Box 169, Ferry Road, Brattleboro, VT___

05301

2. Plant Vermont Yankee Nuclear Power Station, P.O. Box 1572 Vernon, VT 05354 ,

1

3. Plant Unit 1 4. Owner Certificate of Authorization (if required) DPR-28 )

5. Commercial Service Dcte 11/30/72 6. National Board Number for Unit None

6. Base line examinations performed in accordance with IWA-4500.

l These examinations were performed as a result of component disassembly and reassembly during this outage.

7. Category B-J Piping Weld No. BS-1 is an examination not 1 originally scheduled for this outage.

8. Category C-G welds are designated pressure retaining welds in {

piping per ASME Section XI,1974 Edition (including summer 1975) -{ selection criteria.

9. Subject hydrostatic test satisfactorily performed with no notable conditions. ?

C. Ultrasonic Examination Procedures

1. YA-UT-1, Revision 5, Ultrasonic Examination - General Requirements.

{ f

2. YA-UT-3, Revision 2. Ultrasonic Examination of Vessels - Flar,ge to Shell Weld From Flange Face. {

J

3. YA-UT-6, Revision 2. Ultrasonic Examination of Flange Ligaments.

4 YA-UT-7, Revision 3, Ultrasonic Examination of Bolting; Technique Sheet VY-RPV-1.

5. YA-UT-9, Revision 4. Ultrasonic Examination pf Piping - Ferritic Welds.

6. YA-UT-10, Revision 7, Ultrasonic Examination of Piping i-Austenitic Welds.

I

7. YA-UT-11. Revision 4. Ultrasonic Examination of Piping -

Dissimilar Metal Welds. 8 ,. YA-UT-13, Revision 1, Ultrasonic Examination of Vessels - Nozzle Inner Radius. 4 I t 5999R/1.179

l l i J

            .                                                                                       \

1 i FORM NIS-1 OWNER'S DATA . REPORT FOR INSERVICE INSPECTIONS 3 AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES

1. Owner Vermont Yankee Nuclear Power Corp., R.D. 5, Box 169 Ferry Road, Brattleboro,'VT 05301

2. Plant Vermont Yankee Nuclear Power Station, P.O. Box 157, Vernon, VT 05.354 t I

3. Plant Unit 1 4. Owner Certificate of Authorization (if required) DPR-28

5. Commercial Service Date 11/30/72 6. National Board Number for Unit None l

'l

9. YA-UT-22, Revision 2, Ultrasonic Examination of Vessels l Circumferential Longitudinal, Meridional and Flange Welds. l

                                                                                                    'i l              10. YA-UT-44, Revision 1, Ultrasonic Examination of Vessels - Nozzle l

to Vessel Welds. 1

11. YA-UT-112, Revision 1. Thickness Measurement by Ultrasonics.

l

12. YA-UT-85-1-1, Revision 0, Ultrasonic Examination of Piping - l Dissimilar Metal Welds for Use at Vermont Yankee. I J

13. YA-UT-85-1-2, Revision 0, Ultrasonic Examination-Straight Beam Method When Used fer Examination of Weld Overlay Clad Bond.

14. YA-UT-85-1-3, Revision 0, Ultrasonic Examination-Angle Beam ;

Method When Used for Examination of Weld Overlay Clad Bond and l Clad Flaw Indications. ,

15. 80A7616, Revision 4, Including Field Change No. 1, N.E.S.

Ultrasonic Examination Procedure for Reactor Vessel Feedwater Nozzle Inner Radius for Vermont Yankee. D. Liquid Penetrant Examination Procedures , 1. YA-PE-2, Revision 6. Liquid Penetrant Examination. 1 E. M_gnetic _a Particle Examination Procedures

1. YA-MP-111, Revision 1, Procedure for Magnetic Particle Examination.

F. Visual Examination Procedures l 1 YA-VT-11, Revision 2, Visual Examination Procedure. J

2. OP-1412, Revision 6, Jet Pump and Shroud Annulus Inspection.

3. OP-1414, Revision 5, Core Spray Sparger Inspection.

G. Radiographic Examination Procedures

1. YA-RT-111, Revision 1, Radiographic Examination.

5999R/14179

1 1 FORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES

1. Owner Vermont Yankee Nuclear Power Corp., R.D. 5, Box 169 Ferry Road, Brattleboro, VT 05301

2. Plant Vermont Yankee Nuclear Power Station, P.O. Box 157, Vernon, VT 05354

3. Plant Unit 1 4. Ovner Certificate of Authorization (if required) DPR-28 l

5. Commercial Service Date 11/30/72 6. National Board Number for Unit None _ _ _

2. RT-014, Revision 1, Radiographic Examination Procedure, Cramer and Lindell Engineers, Inc., Radiographic Procedure.

, 11. ABSTRACT OF CONDITIONS NOTED l A. Category B-F l l 1. During liquid penetrant examination of nozzle to Safe-End i Weld N6A-SE, several rejectable linear indications were noted in l the base material on the nozzle side of the weld. l l B. Category _B-C-1 l l

1. During magnetic particle examination of RPV Nut No. 36, rejectable linear indications were noted.

2. During magnetic particle examination of RPV Nut No. 13, !

rejectable linear indications were noted.

3. During magnetic particle examination of RPV Stud No. 14, j rejectable linear indications were noted.

l 4. During magnetic particle examination of REV Stud No. 18, l rejectable linear indications were noted. I l C. Category B-C-2 1

1. During visual examination of RHR Valve V10-25A bolting, 6 each, nuts were found to exhibit lack of proper thread engagement.

2. During visual examination of MS Valve SV2-70B bolting, 4 each, nuts were f ound to exhibit lack of proper thread engagement.

l 3. During visual examination of RHR Valve V10-46B bolting, 6 each, nuts were found to exhibit lack of proper thread engagement.

1 5999R/1.179 J l l l

9 FORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS ( AS REQUIRED DY THE PROVISIONS OF THE ASME CODE RULES

1. Ovner Vermont Yankee Nuclear Power Corp., R.D. 5, Box 169, Ferry Road, Brattleboro, VT

2. Plant Vermont Yankee Nuclear Power Stat _lon t_P_.0. Box 157 Verncix _VT 05354

3. Plant Unit 1 4. Owner Certificate of Author!.atfor (if required) DPR-28 l S. Commercial Service Date 11/30/72 6. National Board Wumber for Unit None

                                                  -__----n-                   - - ---- - -m-                                                                      -

D. Category B-J

1. During magnetic particle examination of MS Weld B5H, a rejectable linear indication was noted in the base material adjacent to the weld.

2. During magnetic particle examination of MS Weld C-7, 2 cach.,

rejectable linear indications were noted in the base material adjacent to the weld.

3. During magnetic particle examination of FW Weld F3A-SB, a rejectable linear indication was noted in the base material adjacent to the weld.

4. During magnetic particle examination of HPCI Weld F1B 2 each rejectable linear indications were noted in the base material adjacent to the weld.

E. Category C-B

1. During magnetic particle examination of RHR Heat Exchanger Nozzle A-N4 reinforcement ring to nozzle and rei farcement ring to vessel welds, numerous welding-related indic. tons were noted. The;e same indications were also noted on the visual examination data.

F. Category C-C

1. During magnetle particle examination of RHR heat exchanger support Bracket A-RHR-CC-3 weld, numerous welding-related indications were noted.

G. Category C-F

1. During magnetic particle examination of RHR Weld S-18, 3 each, rejectable linear indications were noted. Two each of the ludications were located in the base material adjacent to the '

weld, 1 each, indication was located in the weld material. 5999R/1.179

A FORM NIS-1 OWNER'3 DATA REPORT FOR INSERV1CE INSPECTIONS AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES

1. Owner Vermont Yankee Nuclear Power Corp., R.D._5, Box 169, Ferry Ropd, Brattleboro, VT 05301

2. Plant Vermont Yankee Nuclear _ Power Station, P.O. Box 137, Vernon, VT 05354

3. Plant Unit 1 4. Owner Certificate of Authorization (if required) DPR-28

5. Commercial Service Date 11/30/72 6. National Board Number for Unit None

2. During magnetic particle examination of RHR Weld S-11, 2 each, rejectable linear indications were noted in the base material adjacent to the weld.

3. During magnetic particle examination of RHR Weld S~10, 4 each, rejectable linear indications were noted in the base material r adjacent to the weld.

H. . Category _C-G

1. During magnetic particle examination of RRR Weld S-4, 1 each, rejectable lineat- indication was noted in the base material adjacent to the weld.

2. During magnetic particle examination of RHR Weld S-26, 2 each, rejectable linear indications were noted in the base naterial adjacent to the weld.

3. During magnetic particle examination of HPCI Weld F-8, 1 each, rejectable linear indication was noted in the base material adjacent to the weld.

4. During magnetic particle examination of HPCI Weld F-14, 2 each, rejectable ).inear indications were noted in the base material adjacent to the weld.

I. Category F-C

1. During visual examination of MS Hanger MS-32 a loose bolt was noted at the pipe clamp connection.

l

2. During visual examination of HPCI Hanger HPCI-2 a nut on the {

pipe clamp exhibited lack of proper thread engagement.

3. During visual examination of HPCI Hanger HD-201 a cracked tack l weld was noted where the support meets the piping. !

4. During visual examination of HPCI Hanger HD-202 a cracked tack ,

weld was noted where the support meets the piping. 5999R/1.179 l J

w 4 FORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES

1. Owner Vermont Yankee Nuclear Power Corp., R.D. 5, Box 169, Ferry Road, Brattleboro, VT 05301

2. Plant Vermont Yenkee Nuclear Power Station, P.O. Box 157, Vernon,' VT 05354

3. Plant Unit 1 4. Owner Certificate of Authorization (if required) DPR-28

5. Commercial Service Date 11/30/72 6. National Board Number for Unit None

12. ABSTRACT OF CORRECTIVE MEASURES RECOMMENDED AND TAKEN A. Category B-F

1. The rejectable linear indications noted during liquid penetrant examination of nozzle to Safe-End Weld N6A-SE were removed by manual surface conditioning. The final liquid penetrant examination showed that all linear indications had been removed. Ultrasonic thickness measurement and measurements of cavity depth were evaluated by Yankee Atomic Elcetric Company

, engineering personnel and found acceptable. B. Category B-G-1

1. The rejectable linear indications found during magnetic particle examination of RPV Closure Head Nut Nos. 13 and 36 were subsequently solvent cleaned and a liquid penetrant examination was performed in the areas where the indications were found.

The liquid penetrant examinations performed revealed no indications thereby leading to the determination that the indications found by magnetic particle examination were extremely shallow surface scratches.

2. The rejectable linear indications found during magnetic particle examination, of RPV Closure Head Stud Nos. 14 and 18 were subsequently solvent cleaned and a liquid penetrant examination was performed in the areas where the indications were found.

The liquid penetrant examinations performed revealed no indications thereby leading to the determination that the indications found by the magnetic particle examination were extremely shallow surface scratches.

       .C . Category B-G-2

1. The lack of proper thread engagement exhibited during visual examination of bolting on Valves V10-25A (RHR), SV2-70B (MS),

and V10-46B (RHR) was evaluated by the Yankee Atomic Mechanical Services Group and determined to be so small in actual measurement as to be insignificant to the proper functioning of the component. Therefore, no corrective action was taken. See Yankee Atomic Memorandum VYM 205/87. 5999R/1.179

v FORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS j AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES

1. Owner Vermont Yankee Nuclear Power Corp., R.D. 5, Box 169.-Ferry Road, Brattleboro, VT 05301 l

2. Plant Vermont Yankee Nuclear Power Station P.O. Box 157, Vernon, VT 05354

3. Plant Unit 1 4. Owner Certificate of Authorization (if required) DPR-28 j

5. Commercial Service Date 11/30/72 6. National Board Number for Unit None D. Category B-J

1. The rejectable indications found during magnetic particle examination of MS Weld B5H, MS Weld C-7, FW Weld F3A-SB, and HPCI Weld F1B were subsequently removed or reduced to acceptable sizes by manual surface conditioning. These indications were rejectable due to their length in accordance with the standards of Section XI, Table IWB-3514 .2. All indications noted occurred in the base material adjacent to the weld. In all cases, the base material is A-106 Grade B and had no surface examination performed on the welds prior to the 1987 ISI. All indications were investigated to establish the maximum through-wall penetration from the OD surface. In no case did the removal violate the nominal pipe thickness nor did the flaw prove to be deeper than that allowed by the volumetric criteria of Table IWB-3514-2, therefore, no sample expansion was required.

E. Category C-B

1. The welding-related indications found during surface examination of RHR Heat Exchanger Nozzle A-N4 reinforcement ring to nozzle and reinforcement ring to vessel welds are undergoing evaluation to determine if corrective action is to be taken. No surface examinations were required at construction and surface conditioning needed to properly examine these welds could reduce weld size to less than nominal design. Surface examinations, an completed, showed no service-related indications.

F. Category C-C

1. Welding-related indications found during surface examination of the RHR heat exchanger support bracket wold on Support Bracket A-RHR-CC-3 are undergoing evaluation to determine if corrective action is to be taken. No surface examinations were required at construction and surface conditioning needed to properly examine these welds could reduce weld size to less than nominal deeign.

Surface examinations, as completed, showed no service-related indications. 5999R/1.179 o___--___---. -_

FORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES

5. Owner Vermont Yankee Nuclear Power Corp., R.D. 5, Box 169, Ferry Road, Brattleboro, VT 05301

2. Plant Vermont Yankee Nuclear Power Station P.O. Box 157 Vernon, VT 05354

3. Plant Unit 1 4. Owner Certificate of Authorization (if required) DPR-28

5. Commercial Service Date 11/30/72 6. National Board Number for Unit None G. Category C-F

1. The rejectable indications found during magnetic particle examination of RHR Welds S-18, S-11, and S-10 that were located in the base material were subsequently removed or reduced to an acceptable size by manual surface conditioning. These indications were rejectable due to their length in accordance with the standards of Section XI, Table IWB-3514-2. In all cases, the base material is A-106 Grade B and the weld had no surface examination prior to the 1987 ISI. All indications were investigated to establish the maximum through-wall penetration from the OD surface. In no case did the removal violate the nominal pipe thickness nor did the flaw prove to be deeper than that allowed by the volumetric criteria of Table IWB-3514-2, therefore, no sample expansion was required.

2. The one rejectable linear indication found during magnetic particle examination of RHR Weld S-18 (also listed above) that did lie in the weld itself was subsequently removed by manual surface conditioning. The maximum through-wall dimension was 12% of the component thickness. The allowable through-wall dimension per ASME Section XI, IWB-3514 is 14% of the component thickness; therefore, the indication is not rejectable to Section XI and no samp.le expansion is required.

H. Category C-G

1. The rejectable indications found during magnetic particle examination of RHR Welds S-4 and S-26 and HPCI Welds F-8 and F-14 were subsequently removed or reduced to acceptable size by l manual surface conditioning. These indications were rejectable due to their length in accordance with the standards of Section XI, Table IWB-3514-2. All indications noted occurred in the base material adjacent to the weld. In all cases, the base material is A-106 Grade B and the weld had no surface examination performed prior to the 1987 ISI. All indications were investigated to es'tablish the maximum through-wall penetration from the OD surface. In no case did the removal violate the nominal pipe thickness nor did the flaw prove to be deeper than that allowed by the volumetric criteria of ASME Section XI, Table IWB-3514-2.

5999R/1.179 u- -

o FORM NIS-1 OWNER'S DATA REPORT FOR INSERVICE INSPECTIONS AS REQUIRED BY THE PROVISIONS OF THE ASME CODE RULES

1. Owner Vermont Yankee Nuclear Power dorp., R.D. 5, Box 169, Ferry Road, Brattleboro, VT 05301

2. Plant Vermont Yankee Nuclear Power Station, P.O. Box 157, Vernon, VT 05354

3. Plant Unit 1 4. Owner Certificate of Authorization (if required) PPR-28

5. Commercial Service Date 11/30/72 6. National Board Number for Unit None J. Category F-C

1. The loose bolt found on Hanger MS-32 was evaluated and it was determined that the nuts were tight and that ireedom of movement in that area of che pipe c1&.np is necessary for proper functioning. An expanded Jample was selected (MS-35) and inspected. No further problems were encountered.

1

2. The nut on the pipe clamp of HPCI Hanger HPCI-2 that exhibits lack of proper thread engagement was evaluated by Yankee Atomic's Mechanical Services Engineering Group and it was determined that since the bolt is in shear it should be accepted as is. See Yankee Atomic Memorandum VYM 205/87.

3. The cracked tack weld exhibited on the connect!on to the pipi on SPCI Hanger HD--201 was originally used for alignment pv.rposes during fabrication of the spcol piece. The tack weld served no purpose for the support to functica properly, therefore, the tack weld was ground off and the area of removal was subjected to a liquid penetrant examination. No indications were found.

There is an identical support on the same system that was examined as a result of the indication found on Hanger HD-201. HPCI Hanger HD-202 exhibited the same cracked tack weld as HD-201. The same corrective action was taken for Hanger HD-202 and no indications were found when the tack weld removal area was liquid penetrant examined. i

5999R/1.179}}

ML20234E003

Text

SUMMARY

SUMMARY

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