ML20236V506

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Supplemental Inservice Insp Rept of North Anna Power Station Unit 1. Performed During 851225-870628.Visual Exam of Safety Injection Valve Revealed Two Indications on Body Flang Gasket Surfaces.Indications Minor & Acceptable
ML20236V506
Person / Time
Site: North Anna Dominion icon.png
Issue date: 11/19/1987
From: Hunter W
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
Shared Package
ML20236V495 List:
References
NUDOCS 8712040344
Download: ML20236V506 (9)
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SUPPLEMENTAL INSERVICE INSPECTION REPORT of the North Anna Power Station Unit 1 1 P.O. Box 402 Mineral, Virginia 23117 l

for Virginia Electric and Power Company P.O. Box 26666 Richmond, Virginia 23261 Commercial Service Date: June 6, 1978 Operating Capacity: 907 MWe (net)

Resfueling Outage: 3rd Period, 1st Interval 8712040344 871130 PDR G ADOCK 05000338 FDR

l ATTACHMENT I PAGE 1 OF 6 FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS SIDE 1 OF 2 As required by the Provisions of the ASME Code Rules P.O. Box 26666 l 1. Owner Virginia Electric & Power Company Richmond, Virginia 23261 (Name and Address of Owner)

P.O. Box 402

2. Plant North Anna Power Station Mineral, Virginia 23117 (Name and Address of Plant)
3. Plant Unit Unit 1 4. Owner Cesdficate of Authorization ( if required) N-A
5. Commercial Service Date 6-6-78 6. Nations! Board Number for Unit NA
7. Components Inspected Manufacturer Component or Manufacturer or Installer State or National Appurtenance or Installer Serial No. Province No. Board No.

PRESSURIZER WESTINGHOUSE ELECTRIC CORP 1271 V A $8322 68-88 CLASS 1 PIPING SOUTIIWEST FAB. & WELDING N/A N/A N/A ACCUMULATOR TANK 'A' DELTA SOUTilERN CO. 41369-70-3 VA 58321 2818 SEAL WATER INJ.

FILTER COMMERCIAL FILTERS DIVISION 19046-1968 N/A 1466 SEAL WATER INJ.

FILTER COMMERCIAL FILTERS DIVISION 19046-1 % 9 N/A 1467 REPAIRS AND REPLACEMENTS VIRGINIA ELEC.& POWER CO.86-025 N/A N/A Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 83 in. x 11 in.,

(2) information in items 1 through 6 on this report is included on each sheet , and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

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ATTACHMENT I PAGE 1 OF 6

  • FORM NIS-1 (Back) SIDE 2 OF 2
8. Examination Dates 12-25-85 to 6-28-87 9. Inspection Interval from 6-6-78 to 6-6-88
10. Abstract of Examinations. Include a list of examinations and a statement concerning status of work required for current interval. Page 6
11. Abstract of Conditions Noted Page 4
12. Abstract of corrective Measures Recommended and Taken Page 4 We certify that the statements made in this report are correct and the examinations and corrective men-sures taken conform to the rules of the ASME Code,Section XI.

Certificate of Authorization No.(if applicabic) N-A Expiration Date N-A Date #- 191.2 Signed MA . ' N-4 a f

By Ma

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M 76w& V G7"y P CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Vireinia and employed by Hartford Steam Boiler I & I Co, of Hartford. CT have inspected the components described in this Owner's Report during the period 12-25-85 to 6-28-87 , 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 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 Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for anypersonal injury or property damage or a loss of any kind arising from or connected with this inspection.

M/ d w7> / /4 " Commissions VA 558 Inspector's Signature National Board, State Province, and Endorsements Date / ? NC 19 Yl

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  • SUPPLEMENTAL SHEET FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS ATTACHMENT I As required by the Provisions of the ASME Code Rules PAGE 2 OF 6 i

P.O. Box 26666

1. Owner Virginia Electric & Power Company Richmond, Virginia 23261 (Name and Address of Owner)

P.O. Box 402

2. Plant North Anna Power Station Mineral, Virginia 23117 (Name and Address of Plant)
3. Plant Unit Unit 1 4. Owner Certificate of Authorization ( if required) N-A
5. Commercial Service Date 6-6-78 6. National Board Number for Unit N-A SUPPLEMENTAL EXAMINATION

SUMMARY

TO NIS-1 SIGNED SEPTEMBER 26, 1987 Introduction Inservice examinations of Class 1, Class 2, and Class 3 components,  ;

piping and component supports were conducted at North Anna Power Station Unit 1 from December 25, 1985 to June 28, 1987.

Examination procedures were approved prior to the examinations. ]

Certification documents relative to personnel, equipment, and materials were reviewed and determined to be satisfactory.

Inspections, witnessing, and surveillance of the examinations and related activities were conducted by personnel from the Hartford Steam Boiler Inspection and Insurance Company, One State Street, Hartford, CT 06102 (B. M. Eamigh, C. R. Enos, C. A. Garrison, W. E. Huber, C. A. Ireland, and R. P. Neville), North Anna Station I Quality Assurance Department, and the North Anna technical staff.

Limitations Some of the arrangements and details of the piping system and components were designed and fabricated before the access and examination requirements of Section XI of the 1974 Code could be f <

applied; consequently some examinations are limited or not practical due to geometric configuration or accessibility.

Examinations Examinations were conducted to review as much of the examination zones as was practical within geometric, metallurgical and physical I limitations. When the required ultrasonic examination volume or area could not be examined 100%, the examination was considered to be a partial (PAR) and so noted on the examination report. Generally PARS are noted at fitting to fitting assemblies and where integrally welded supports, lugs or hangers, etc., preclude access to some part of the examination area.

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SUPPLEMENTAL SHEET l FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS ATTACHMENT I i As required by the Provisions of the ASME Code Rules PAGE 3 OF 6 l

P.O. Box 26666

1. Owner Virginia Electric & Power Company Richmond, Virginia 23261 (Name and Address of Owner)

P.O. Box 402

2. Plant North Anna Power Station Mineral, Virginia 23117  ;

(Name and Addreu of Plant)

3. Plant Unit Unit 1 4. Owner Certificate of Authorization (if required) N-A
5. Commercial Service Date 6-6-78 6. National Board Number for Unit N-A Repairs and Replacements Repairs and replacements completed during this NIS-1 period were performed in accordance with Section XI of the ASME Boiler and Pressure Vessel Code, 1980 Edition thru winter 1981 Addenda.

1 The following paragraph and the attached NIS-2 form (Attachment II, page 1) represent those repairs or replacements performed on Class 1 l or Class 2 systems:

A)86-025 - Replaced the bonnet and disc on "B" Reactor Coolant Loop Bypass Valve 1-RC-MOV-1586. The valve was repaired to eliminate packing leakage.

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SUPPLEMENTAL SHEET FORM NIS 1 OWNER'S REPORT FOR INSERVICE INSPECTIONS ATTACHMENT I As required by the Provisions of the ASME Code Rules PAGE 4 OF 6 P.O. Box 26666

1. owner Virginia Electric & Power Company Richmond, Virginia 23261 (Name and Address of Owner)

P.O. Box 402

2. Plant North Anna Power Station Mineral, Virginia 23117 (Name and Address of Plant)
3. Plant Unit Unit 1 4. Owner Certificate of Authorization (if required) N-A
5. Commercial Service Date 6-6-78 6. National Board Number for Unit N-A Results Examination of components resulted in a total of two components being reported on the basis of procedure reporting criteria.

A summary of the indications and their dispositions follows:

A) Visual a mination of the inter or of safety injection valve 1-SI-155 ,,RA-1-6200 Item 11 shown on ISO VRA-1-4105) revealed two indications on the body flange gasket surfaces. The indications were evaluated by Virginia Electric & Power Company Engineering to be minor and could be removed by honing. The indications were removed by honing and found to be acceptable upon reexamination.

B) Visual examination of the interior of "B" Reactor Coolant Loop Bypass Valve 1-RC-MOV-1586 revealed the following indications:

1. Valve body interior - minor scratches and scrapes
2. Valve bonnet - hole drilled in bonnet
3. Yoke spacer ring - badly eroded and corroded
4. Valve disc - abnormal wear on seating surface
5. Yoke lock rings - heavily eroded and corroded
6. Nuts and bolts - severely corroded The conditions noted were corrected under repair and replacement program 86-025. The valve was found to be acceptable upon reexamination. ,

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SUPPLEMENTAL SHEET FORM NIS-1 OWNERS REPORT FOR INSERVICE INSPECTIONS ATTACHMENT I As required by the Provisions of the ASME Code Rules PAGE 5 OF 6 P.O. Box 26666

1. Owner Virginia Electric & Power Company Richmond, Virginia 23261 (Name and Address of Owner)

P.O. Box 402

2. Plant North Anna Power Station Mineral, Virginia 23117 (Name and Address of Plant)
3. Plant Unit Unit 1 4. Owner Certificate of Authorization ( if required) N-A
5. Commercial Service Date 6-6-78 6. National Board Number for Unit N.A Hydrostatic Pressure Tests ASME Section XI required 10-year hydrostatic pressure tests were performed on the following systems. The tests performed were partial system tests and are identified below. The remainder of the hydro test will be performed and documented on the next NIS-1 report.

SYSTEM : CHEMICAL VOLUME & CONTROL CLASS / TEST BLOCK DESCRIPTION 2-CH-13 RCP SEAL WATER INJ. SUPPLY HEADER 1-CH-14 'A' RCP SEAL WATER INJ. SUPPLY 1-CH-18 'B' RCP SEAL WATER INJ. SUPPLY 1-CH-21 'C' RCP SEAL WATER INJ. SUPPLY SYSTEM : REACTOR COOLANT SYSTEM 1-RC-2 REACTOR COOLANT SYSTEM STUB PIECES SYSTEM : SAFETY INJCCTION SYSTEM 2-SI-1 'A' ACCUMULATOR TANK 1-SI-TK-1A SYSTEM : SAMPLE SYSTEM 1-SS-3 PRIMARY COLD LEG SAMPLE LINES 1-SS-5 PZR VAPOR SPACE SAMPLE LINES 1-SS-6 PZR LIQUID SPACE SAMPLE LINES i

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1 SUPPLEMENTAL SHEET l FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS ATTACHMENT I As required by the Provisions of the ASME Code Rules PAGE 6 OF 6 P.O. Box 26666 L Owner Virginia Electric & Power Company Richmond, Virginia 23261 (Name and Address of Owner) l P.O. Box 402

2. Plant North Anna Power Station Mineral, Virginia 23117 (Nan.e .7.od Address of Plant)
3. Plant Unit Unit 1 4. Owner Certificate of Authorization ( if required) N-A i Commercial Service Date 6678 6. National Board Number for Unit N-A ABSTRACT OF EXAMINATIONS CLASS 1
  • - indicates partial examination

. CATEGORY ITEMNO ISOMETRIC COMPONENT / AREA EXAMINED EXAM B-G-2 B2.11 VRA-1-2100 PZR MANWAY BOLTS 1 THROUGH 16 VT B-J B4. 6 VRA-1-4103 01BC BRANCH CONNECTION PT B-J B4. 5 VRA-1-4103 06 P-E UT B-J B4. 5 VRA-1-4103 07 E-P UT B-J B4. 5 VRA-1-4103 08 P-E UT B-J B4. 5 VRA-1-4103 09 E-P UT B-J B4. 5 VRA-1-4103 10 P-P UT B-J B4. 5 VRA-1-4203 06 P-E UT B-J B4. 5 VRA-1-4203 07 E-P UT B-J B4. 5 VRA-1-4203 08 P-E UT B-J B4. 5 VRA-1-4203 09 E-P UT B-J B4. 5 VRA-1-4203 10 P-P UT B-J B4. 5 VRA-1-4304 01 P-P UT B-J B4. 6 VRA-1-4304 01BC BRANCH CONNECTION PT B-J B4. 5 VRA-1-4304 02 P-E UT B-J B4. 5 VRA-1-4304 03 E-P UT B-J B4. .5 VRA-1-4304 04 P-VALVE UT D-J B4. 5 VRA-1-4304 05 VALVE-P UT B-J B4. 5 VRA-1-4304 06 P-E UT B-J B4. 5 VRA-1-4304 SWO5 WELD PT B-J B4. 5 VRA-1-4502 21 P-E UT B-J B4. 5 VRA-1-4502 28 TEE-P UT B-J B4. 5 VRA-1-4502 29 P-TEE UT B-J B4. 5 VRA-1-4502 30 TEE-P UT B-J B4. 5 VRA-1-4502 32 E-P UT B-J B4. 5 VRA-1-4502 33 P-RED UT B-M-2 B6. 7 VRA-1-6200 06 VALVE INT.-1875D(SI-125) VT B-M-2 B6. 7 VRA-1-6200 11 VALVE INT.-1876D(SI-195) VT B-M-2 B6. 7 VRA-1-6200 17 VALVE INT.-1586 VT B-M-2 B6. 7 VRA-1-6200 28* VALVE INT.-1874B(SI-103) VT B-G-2 B6. 9 VRA-1-6300 35 VBB-1876E(SI-197) 11S UT B-G-2 B6. 9 VRA-1-6300 76 VBB-1551A 12S-22N VT D-G-2 B6. 9 VRA-1-6300 76 VBB-1551A 12S-22N MT B-G-2 B6. 9 VRA-1-6300 77 VBB-1551B 12S-24N VT B-G-2 B6. 9 VRA-1-6300 77 VBB-1551B 12S-24N MT B-G-2 B6. 9 VRA-1-6300 78 VBB-1551C 12S-24N VT B-G-2 B6. 9 VRA-1-6300 78 VBB-1551C 12S-24N MT

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ATTACHMENT II PAGE 1 OF 1 70Att Nap.3 085988A'8 REPORT OF REPAIR OR REPLASWIWff As seguesed by en Pusetstees of AAGE Ceds Geselme NI

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