1981 refueling outage report for oconee station unit #3 · subject: revision 1 to the 1981...

REPORT NUMBER: ASSIGNED TO:

CONTROLLED: UNCONTROLLED: X

OWNER: DUKE POWER COMPANY P. 0. Box 33189 Charlotte, NC 28242

1981 REFUELING OUTAGE

INSERVICE INSPECTION REPORT FOR OCONEE STATION UNIT #3

LOCATED AT: SENECA, SOUTH CAROLINA

599-0443-14-08

REVISION: 1 DATE:

COMPONENTS: B&W NSS-9 and other components as

identified in this report

MANUFACTURER: BABCOCK & WILCOX COMPANY LYNCHBURG, VIRGINIA 24505

GROSS GENERATING CAPABILITY: 2568 MWT COMMERCIAL SERVICE DATE: December 16, 1974 DATE OF INSPECTION: See Preface ABSTRACT OF INSPECTION: See Summary Report

APPROVED BY: M C. R. Honey d, Manager, Manuals & Report Date

Babcock & W cox Company

APPROVED BY: ti/ C-.( 7L/ J .p. hinney, Msnager, Inservice Inspection Date Babco & Wilcox Company

APPROVED BY: _ _ _ ___ _ _ J/ . rbour, Quality Assurance, Operations Date ak1 Power Company

BABCOCK & WILCOX INSERVICE INSPECTION P. 0. Box 1260 Lynchburg, VA 24505

8107210421 810714 -1 PDR ADOCK 05000287 G _ PDR

Babcock & Wilcox Nuclear Power Generation Division

a McDermott company 3315 Old Forest Road P.O. Box 1260 Lynchburg, Virginia 24505 (804) 384-5111

July 6, 1981

Mr. C. B. Cheezem Duke Power Company Quality Assurance Operations P. O..Box 33189 Charlotte, NC 28242

File: 0443-B.039 Ref: 599-0443-14-08

Subject: Revision 1 to the 1981 Inservice Inspection Report for Oconee Station, Unit #3

Dear Mr. Cheezem:

The following changes are being transmitted to you for your approval and insertion into the .two copies of the report (1 and 2) in your possession.

Action; Replace, Description of Item Description Remove, or Insert Modification

1. Title Page (Sign) replace at Revision #1 later date

2. Table of Contents Replace Revision #1 to page T-1 Changed date to 7-6-81 Changed Revision to #1 in Sections 11.0-11.4, and 15.0

3. Page 11-1 thru Replace Changed Revision to #1 11-3 Changed date to 7-6-81

Changed the first sentence of the third paragraph on page 11-2 to read; Steam Generator "B" had 24 tubes ... of wall thickness.

4. Page 15-1 thru Replace Changed Revision to #1 15-6 Changed date to 7-6-81

Changed page 15-2, item #8 under "Date", by adding "Revised page 2, on 7-6-81".

*e 0

-2

5. Section 11, Tab-G Replace Corrected the Levels

Page 90 of 179 of the evaluator and the reviewer.

6. Section 15, Tab-Q Replace Corrected the last Page #2 of M. J. sentence to read 24 Gallagher's letter tubes, and remove3the dated 3-6-81. last tube in column

under "B" generator.

Upon approval, please sign the Revision #1 title page in the place indicated and return it to P. L. Pitz at the address indicated below. Please note that the revision #1 title page is not yet dated. The date that will be shown is that of the Duke Power

Compan's approval signature. Copies of the approved title page will then be sent to you for inclusion in your copies of the

report.

Babcock & Wilcox Co. Customer Service, Inservice Inspection P. 0. Box 1260 Lynchburg, VA 24505

Sincerely,

THE BABCOCK & WILCOX CO.

T. E. Smith Contract Management Inservice Inspection

TES:meh Distribution:

Report Assigned To:

1 CB Cheezem 2 CB Cheezem 3 CR Honeycutt 4 File 5 File (Microfilm)

REV. 1

DATE: 7-6-81

PAGE: T-1

TABLE OF CONTENTS

Section Revision

PREFACE 0

SUMMARY REPORT 0

1.0 CURRENT-INSERVICE INSPECTION PLAN, OUTAGE 5 0

2.0 REACTOR VESSEL DATA 0

3.0 PRESSURIZER DATA 0

4.0 CLASS 1 STEAM GENERATOR DATA 0

5.0 CLASS 1 PIPING DATA 0

6.0 CLASS 1 PUMP DATA 0

7.0 CLASS 1 VALVE DATA 0

8.0 CLASS 2 VESSEL DATA 0

9.0 CLASS 2 PIPING DATA 0

10.0 CLASS 2 HANGERS 0

10.1 CLASS 3 HANGERS 0

11.0 AUGMENTED INSPECTION DATA 1

11.1 AUGMENTED LEAK TEST 1

11.2 STEAM GENERATOR TUBES 1

11.3 REACTOR COOLANT PUMP MOTOR FLYWHEEL 1

11.4 CLASS 1 LEAK TEST 1

12.0 PERSONNEL CERTIFICATIONS 0

13.0 MATERIAL AND EQUIPMENT CERTIFICATIONS 0

14.0 CALIBRATION SHEETS 0

15.0 REFERENCE DOCUMENTS

REV. 1

DATE: 7-6-81

PAGE: 11-1

11.0 AUGMENTED INSPECTION DATA

11.1 AUGMENTED LEAK TEST (TAB "E")

Ten piping systems were examined by visual examination

(LO.3.1, LO.3.2, LO.3.3, LO.3.4, LO.3.5, LO.3.8, LO.3.9,

LO.3.10, LO.3.12, and LO.3.13). Of these, only 4 had conditions

which were reported via the evaluation reports as noted below:

LO.3.5 ER #599-0443-011 LO.3.9 ER #599-0443-007, LO.3.10 ER #599-0443-010 LO.3.13 ER #599-0443-097

The utility representative documented that the conditions are

acceptable as is and this is noted on the evaluation reports which

are located in Section 15.0, Reference Documents.

REV. 1

DATE: 7-6-81

PAGE: 11-2

11.2 STEAM GENERATOR TUBES (TABS "F" & "G")

The inconel tubing (Figure XO.1.1 and X0.1.2) of the 2A & 2B

steam generators was examined per NRC Regulatory Guide 1.83 using

eddy current techniques. This is described in M. J. Gallagher's

letter to file dated March 6, 1981, in Section 15.0 of this report.

As a result of-this examination, it was found that 4 of the

tubes in steam generator "A" had indications equal to or exceeding

20% of the wall thickness. Approximately ten percent of the tubes

were examined in the "A" generator, the data for which is presented

following Tabs "F". No tubes exceeded the 40% plugging limit.

Steam generator "B" had 24 tubes with indications equal to or

greater than 20% of the wall thickness. Four of these (150-14, 4-4,

58-2, and 62-113) had indications exceeding the 40% plugging limit

and had to be taken out of service. Approximately 21% of the tubes

were examined in."B" generator, the data for which is presented

following tab "G". No other tubes exceeded the plugging limit.

REV. 1

DATE:7-6-81

PAGE: 11-3

11.3 REACTOR COOLANT PUMP MOTOR FLYWHEEL (TAB "H")

Ultrasonic examinations of the bore and keyway areas for each

of the four reactor coolant pump motor flywheels (Figures XO.2.1,

XO.2.3, XO.2.5, and XO.2.7) were performed. No recordable

indications were observed during these examinations.

11.4 CLASS 1 LEAK TEST (TAB "J")

The Class i leak test (figure.XO.3.1) as identified in Section

4.0 of the Inservice Inspection Manual was performed in accordance

with the requirements. of IWA & IWB-5000 of the Section XI Code. No

recordable indications were observed during the visual examination

except for minor leaks as noted on Figure XO.3.1.

REV. 1

DATE: 7-6-81

PAGE: 15-1

15.0 REFERENCE DOCUMENTS

This section contains the letters, documents, nonconforming

items reports, and evaluation reports which pertain to various

technical considerations referenced throughout this report.

15.1 LETTERS AND DOCUMENTS (TAB "Q")

Item Letter/Documents Date

1. D. E. Guilbert, to Distribution "C" 12-16-81

Subject: Authorization for approval of Eddy Current FCA's.

2. T. F. McDermott to H.W. Stoppelmann 12-17-80

Subject: NCR's 80-1 thru 80-8

a 3. T. F. McDermott to Randy Klein 1-19-81

Subject: Justification for Deviations. from Code Requirements

4. T. E. Smith to File 1-21-81 Subject: Percentage of NDE

performed on Class 2 bolting.

Attachment Included; A) Letter from A. J. Hogge dated

8-7-.80.

5. Report of Inspection, L. M. Elliot 1-22-81

QA.

Attachments Included: A) Personnel Qualifications B) Equipment C) Equipment D) Consumable Materials E) Calibration Blocks and Data

REV. 1

DATE:7-6-81

PAGE: 15-2

15.1 LETTERS AND DOCUMENTS (TAB "Q") CONT'D

Item Letter/Documents Date

6. Letter from'J. Crowe, (DPC, QA) 1-26-81

Subject: Receipt of Radiographs

7. T. E. Smith to C. B. Cheezem 3-3-81

Subject: Response to NRC's Unresolved Item on Oconee-3 1980 Outage.

8. M. J. Gallagher to File 3-6-81

Subject: Steam Generator Eddy Revised Page2 Current Examination for on 7-6-81 Oconee 3.

9. T. E. Smith to C. B. Cheezem 3-6-81

Subject: Oconee .3 Welded Lug Field Check

10. P. L. Pitz to File 3-7-81 Subject: Mag Particle Examination

of Welds Scheduled for RT After Grinding

REV. 1

DATE: 7-6-81

PAGE: 15-3

15.2 LETTNONCONFORMING ITEM REPORT (TAB "R")

Item Serial Number Attachments

1. 80-1 N/A

2. 80-2 PQ, Data Sheet

3. 80-3 N/A

4. 80-4 N/A

5. 80-5 N/A

6. 80-6 N/A

7. 80-7 N/A

8. 80-8 N/A

9. 80-9 Letter from M.G. Hacker dated 1-20-81

10. 80-10 N/A

11. 80-11 N/A

12. 80-12 N/A

13.. 80-13 Letter from M.G. Hacker dated 1-20-81

14. 80-14 N/A

15. 80-15 N/A

16. 0-475 N/A

17. 0-485 1

18. 0-488 N/A

19. 0-494 1

20. 0-507 1

21. 0-510 1

22. 0-519 N/A

23. 536 N/A

24. WR-50933 N/A

25. WR-66568 N/A

REV. 1

DATE: 7-6-81

PAGE: 15-4

15.3 EVALUATION REPORTS (TAB "W")

Item Figure Number Report Number

1. N/A 599-0443-001

2. N/A 599-0443-002

3. N/A 599-0443-003

4. N/A 599-0443-004

5. N/A 599-0443-005

6. N/A 599-0443-006

7. LO.3.9 599-0443-007

8. N/A 599-0443-008

9. C2.6.8 599-0443-009

10. LO.3.10 599-0443-010

11. LO.3.5 599-0443-011

12. N/A 599-0443-012

13. N/A 599-0443-013

- 14. N/A 599-0443-014

15. N/A 599-0443-015

16. N/A 599-0443-016

17. N/A 599-0443-017

. 18. N/A 599-0443-018

19. N/A 599-0443-019

20. N/A 599-0443-020

21. N/A 599-0443-021

22. N/A 599-0443-022

23. N/A 599-0443-023

24. N/A 599-0443-024

25. N/A 599-0443-025

26. N/A 599-0443-026 27. N/A 599-0443-027

28. C2.6.52 599-0443-028 29. C2.6.61.8 599-0443-029

30. C2.6.64 599-0443-030 31. C2.6.65.2 599-0443-031

32. C2.6.65.8 599-0443-032

33. C2.6.68 599-0443-033

34. B4.7.5 599-0443-034

35. B6.9.6 599-0443-035

36. B4.1.56 599-0443-036

37. C2.1.66 599-0443-037

38. C2.1.69 599-0443-038

39. C1.2.1 599-0443-039

40. N/A 599-0443-040

41. N/A 599-0443-041

REV. 1

DATE: 7-6-81

PAGE: 15-5


42. N/A 599-0443-042 43. N/A 599-0443-043

. 44. C1.4.12 599-0443-044 45. N/A 599-0443-045 46. N/A 599-0443-046 47. N/A 599-0443-047 48. N/A 599-0443-048 49. N/A 599-0443-049 50. N/A 599-0443-050 51. N/A 599-0443-051 52. N/A 599-0443-05,2 53. N/A 599-0443-053 54. N/A 599-0443-054 55. N/A 599-0443-055 56. N/A 599-0443-056 57. N/A 599-0443-057 58. N/A 599-0443-058 59. N/A 599-0443-059 60. N/A 599-0443-060 61. N/A 599-0443-061 62.. N/A 599-0443-062 63. N/A 599-0443-063 64. N/A 599-0443-064 65. N/A 599-0443-065 66. N/A 599-0443-066 67. N/A 599-0443-067 68. N/A 599-0443-068 69. N/A 599-0443-069 70. N/A 599-0443-070 71. N/A 599-0443-071 72. N/A 599-0443-072 73. N/A 599-0443-073 74. N/A 599-0443-074 75. N/A 599-0443-075 76. N/A 599-0443 -076 77. N/A 599-0443-077 78. N/A 599-0443-078 79. N/A 599-0443-079 80. N/A 599-0443-080 81. N/A 599-0443-081 82. N/A 599-0443-082 83. N/A 599-0443-083 84. N/A 599-0443-084 85. N/A 599-0443-085 86. N/A 599-0443-086

REV. 1

DATE: 7-6-81

PAGE: 15-6


87. N/A 599-0443-087

88. N/A 599-0443-088

89. N/A 599-0443-089

90. N/A 599-0443-090

91. N/A 599-0443-091

92. N/A 599-0443-092

93. N/A 599-0443-093

94. N/A 599-0443-094

95. N/A 599-0443-095

96. LO.3.13 599-0443-096

97. N/A 599-0443-097

98. N/A 599-0443-098

99. N/A 599-0443-099

100. N/A 599-0443-100

101. LO.3.2 599-0443-101

102. LO.3.8 599-0443-102

r- - -INDICATION DESIGN(ATIONS__

(1) 0. D.LONG. CRA W (6) LTS-2 H O.D. WEA* HKIXG (16) UTS C2 < (2) DING 7) LTS-B 121 PLUGGED Il UTS C3

o D '1 (3) CHAITTER (8) MISC. (13 REM4OVED i1) O.D. INDICATION F-i 1 LOO-PS ~ 9 SPECIAL TUBES IO 14 STABILIZED 19) I.D.LONG.CRACK

[- m , 10) 1.0. IDC'15 UTS C 2)PREBLr c:: :U - 5 LTS.-1 12) EMABLT

U)I.F -O

C?- - - - - - - - - - - -=r .~ UI

.4C.4l .I

co -C - - U

Ln U

C-> 00 Lo I0

4-U F

C .o

~ F

C= 0 -Q$

01 u :) o a)

0 Fo > m o c

CN Z~ m-~ ~ co T- C wx ~ F LU

L

1LI r)- 0-' C' 7) L

LL, c -J

A total of 10% of the "A" generator tubes and 21% of the "B" generator tubes was examined. The results of these exams are documented below.

RESULTS:

There are four (4) tubes in steam generator "A" which contain defects equal to or greater than 20% of the wall thickness. A listing of these tubes and their status is given below.

Tube Locatioh & Type of Defect Depth

77-6 15th OD 22% 63-130 12th OD 30% 77-123 l1th OD 22% 75-118 14th OD 25%

There are 24 tubes in steam generator "B" which contain defects equal to or greater than 20% of the wall thickness.

Tube Location & Type of Defect Depth

75-3 15th OD 20% 75-5 15th OD 20-30% 75-6 15th OD 20-30% 75-9 15th OD 25% 75-10 15th OD 20-25% 77-22 15th OD 20% 78-6 15th OD 25% 78-3 15th OD 28% 104-93 LTS-1 OD 20% 52-45 13th OD 20% 83-71 8-9th OD 20-25% 37-5 14th OD 25% 133-35 2-3rd OD 30% 124-38 14-15th OD 35%

*4-4 14th OD 44% 137-68 2-3rd OD 35%

*150-14 10th OD 52% 99-105 14-15th OD 36%

*58-2 14th OD 50% *62-113 14th OD 52% 100-11 14th OD 30-40% 53-124 14th OD 20-30% 54-125 14th OD 20-25% 57-125 14th OD 20-30%