NRC Generic Letter 1977-06

NRC Generic Letter 1977-006: Establishing a Steam Generator Information System

ML031280300
Person / Time
Issue date:	12/09/1977
From:	Goller K Office of Nuclear Reactor Regulation
To:
References
GL-77-006
Download: ML031280300 (30)

REGQ,

0 AUNITED STATES

. NUCLEAR REGULATORY COMMISSION

0 fWASHINGTON, D. C. 20555

• 45 fDecember 9, 1977 D-3 TO ALL PWR FACILITY LICENSEES

Gentlemen:

The NRC staff has recently been engaged in a series of discussions with reactor vendors, EPRI, and the Steam Generator Owners Groups concerning steam generator operational problems. Central to these discussions is an accurate assessment of operational conditions and experiences as well as the programs aimed towards the resolution of these problems.

In order to ensure that both the NRC and the nuclear industry have available a comprehensive collection of operating data for steam gener- ators to permit informed, timely decisions and actions, DOR is establishing a steam generator information system. The system will collect appropriate information from all PWR licensees which will periodically be published. It is presently anticipated that the initial publication of information will be in the early part of 1978. You will be sent a copy of this and all future publications.

This information system will enable the NRC and each Licensee to draw from the operational experiences of the entire nuclear industry when making any decisions concerning steam generators. This should result in both safety and economic benefits.

Enclosed is a questionnaire which we request that you complete for each of your operating PWR units. We believe that the questionnaire is self explanatory, however, if questions arise or any clarifica- tions are necessary, please do not hesitate to contact your NRC

Project Mlanager. Please include with your response dny diagrams you may have available which illustrate the tube plugging and/or the tube degradation patterns.

To enable us to maintain the information current, you are further requested to subuit in the same format indicated by the question- naire, any changes or additions to your initial submittal to reflect the future operating experience with your steam generators, i.e., the results of future steam generator inspections. The questionnaire should be completed to the extent applilcable and appropriate at this time, i.e. regardless of operating experience.

-2- The information being requested is quite extensive and will require a diligent effort on your part and ours to assure accurate and timely completion. Also, we realize that parts of the information may already be available to the NRC, but not in a convenient format which is readily accessible. Therefore, we request that you assist us by returning a single completed copy of the enclosed questionnaire to the Director of Nuclear Reactor Regulation, U. S. Nuclear Regulatory Commission, Washington, D. C. 20555, within 60 days of receipt of this letter. Please include any comments or suggestions for improving this information system which you may have.

This request for generic information was approved by GAO under a blanket clearance number R0071; this clearance expires September 30, 1978.

Sincerely, Karl R. Goller, Assistant Director for Operating Reactors Division of Operating Reactors Enclosure:

Steam Generator Operating History Questionnaire cc w/enclosure:

See next page a

Docket No. 50-313 Arkansas Power & Light Company ATTN: Mr. William Cavanaugh, III

Executive Director Generation and Construction Department P. 0. Box 551 Little Rock, Arkansas 72203 cc: Phillip K. Lyon, Esquire House, Holms & Jewell

1550 Tower Building Little Rock, Arkansas 72201 Mr. Daniel H. Williams Manager, Licensing Arkansas Power & Light Company Post Office Box 551 Little Rock, Arkansas 72203 Mr. John W. Anderson, Jr.

Plant Superintendent Arkansas Nuclear One Post Office Box 608 Russellville, Arkansas 72801 Arkansas Polytechnic College Russellville, Arkansas 72801

Docket Nos. 50-317 and 50-318 Baltimore Gas and Electric Company ATTN: Mr. A. E. Lundvall, Jr.

Vice President - Supply P. 0. Box 1475 Baltimore, Maryland 21203 cc: James'A. Biddison, Jr.

General Counsel G and E Building Charles Center Baltimore, Maryland 21203 George F. Trowbridge, Esquire Shaw, Pittman, Potts and Trowbridge

1800 M Street, N. W.

Washington, D. C. 20036 Mr. R. C. L. Olson Baltimore Gas and Electric Company Room 922 - G and E Building Post Office Box 1475 Baltimore, Maryland 21203 Mr. R. M. Douglass, Chief Engineer Calvert Cliffs Nuclear Power Plant Baltimore Gas and Electric Company Lusby, Maryland 20657 Bechtel Power Corporation ATTN: Mr. R. L. Ashley Chief Nuclear Engineer P. 0. Box 607 Gaithersburg, Maryland 20760

Combustion Engineering, Inc.

ATTN: Mr. J. A. Honey Project Manager P. 0. Box 500

Windsor, Connecticut 06095 Calvert County Library Prince Frederick, Maryland 20678

Docket No. 50-261 Carolina Power & Light Company ATTN: Mr. J. A. Jones Senior Vice President

336 Fayetteville Street Raleigh, North Carolina 27602

-cc: Hartsville Memorial Library Home and Fifth Avenue Hartsville, South Carolina 29550

Docket No. 50-213 Connecticut Yankee Atomic Power Company ATTN: IMir. Donald C. Switzer President Post Office Box 270

Hartford, Connecticut 06101 cc: Day, Berry, & Howard Counselors at Law One Constitution Plaza Hartford, Connecticut 06103 Russell Library

119 Broad Street Middletown, Connecticut 16457

Docket Nos. 50-3 and 50-241 Consolidated Edison Company of New York, Inc.

ATTN: Mr. William J. Cahill, Jr.

Vice President

4 Irving Place New York, New York 10003 cc: Leonard M. Trosten, Esquire LeBoeuf, Lamb, Leiby & MacRae

1757 N Street, N. W.

Washington, D. C. 20036 Paul S. Shemin, Esquire Assistant Attorney General State of New York Department of Law Two World Trade Center New York, New York 10047 Sarah Chasis, Esquire Natural Resources Defense Council

122 East 42nd Street New York, New York 10017 Director, Technical Development Programs State of New York Energy Office Agency Building 2 Empire State Plaza Albany, New York 12223 Anthony Z. Roisman, Esquire Sheldon, Harmon & Roisman

1025 15th Street, N. W., 5th Floor Washington, D. C. 20005 White Plains Public Library

100 Martine Avenue White Plans, New York 10601

Docket No. 50-286 Consolidated Edison Company of New York, Inc.

ATTN: Mr. William J. Cahill, Jr.

Vice President

4 Irving Place New York, New York 10003 cc: Admiral Paul Early (IP-3)

Power Authority of the State of New York

10 Columbus Circle New York, New York 10019 White Plains Public Library

100 Martine Avenue White Plains, New York 10601 Docket Nos. 50-295 and 50-304 Commonwealth Edison Company ATTN: Mr. R. L. Bolger Assistant Vice President Post Office Box 767 Chicago, Illinois 60690

cc: Mr. John W. Rowe Isham, Lincoln & Beale Counselors at Law One First National Plaza, 42nd Floor Chicago, Illinois 60603 Robert J. Vollen, Esquire

109 North Dearborn Street Chicago, Illinois 60602 Dr. Cecil Lue-Hing Director of Research & Development Metropolitan Sanitary District of Greater Chicago

100 East Erie Street Chicago, Illinois 60611 Waukegan Public Library

128 North County Street Waukegan, Illinois 60085

Docket No. 50-255 Consumers Power Company ATTN: Mr. Dave Bixel Nuclear Licensing Adminstrator

212 West Michigan Avenue Jackson, Michigan 49201 cc: M. I. Miller, Esquire Isham, Lincoln & Beale Suite 4200

One First National Plaza Chicago, Illinois 60670

J. L. Bacon, Esquire Consumers Power Company

212 West Michigan Avenue Jackson, Michigan 49201 Paul A. Perry, Secretary Consumers Power Company

212 West Michigan Avenue Jackson, Michigan 49201 Kalamazoo Public Library

315 South Rose Street Kalamazoo, Michigan 49006 Myron M. Cherry, Esquire Suite 4501 One IBM Plaza Chicago, Illinois 60611

Docket Nos. 50-269

50-270

and 50-287 Duke Power Company ATTN: Mr. William 0. Parker, Jr.

Vice President Steam Production Post Office-Box 2178

422 South Church Street Charlotte, North Carolina 28242 cc: Mr. William L. Porter Duke Power Company Post Office Box 2178

422 South Church Street Charlotte, North Carolina 28242 J. Michael McGarry, III, Esquire DeBevoise & Liberman

700 Shoreham Building

806 - 15th Street, N. W.

Washington, D. C. 20005 Oconee County Library

201 South Spring Street Walhalla, South Carolina 29691

Docket No. 50-334 Duquesne Light Company ATTN: Mr. C. N. Dunn, Vice President Operations Division

435 Sixth Avenue Pittsburge, Pennsylvania 15219 cc: Karin Carter, Esq.

Special Assistant Attorney General Bureau of Administrative Enforcement

5th Floor, Executive House Harrisburg, Pennsylvania 17120

Marvin Fein Utility Counsel City of Pittsburgh

313 City-County Building Pittsburgh, Pennsylvania 15219 Mr. J. M. Cumiskey Stone & Webster Engineering Corporation P. 0. Box 2325 Boston, Massachusetts 02107 Mr. J. D. Woodward R&D Center Westinghouse Electric Corporation Building 7-303 Pittsburgh, Pennsylvania 15230

Mr. Jack Carey Technical Assistant Duquesne Light Company P. 0. Box 4 Shippingport, Pennsylvania 15077 Mr. R. E. Martin Duquesne Light.Company

435 6th Avenue Pittsburgh, Pennsylvania 15219 Beaver Area Memorial Library

100 College Avenue Beaver, Pennsylvania 15009

Docket Nos. 50-250 <_

and 50-251 Florida Power & Light Company ATTN: Dr. Robert E. Uhrig Vice President P. 0. Box 013100

Miami, Florida 33101 cc: Mr. Jack R. Newman, Esquire Lowenstein, Newman, Reis & Axelrad

1025 Connecticut Avenue, N. W.

Suite 1214 Washington, D. C. 20036 Environmental & Urban Affairs Library Florida International University Miami, Florida 33199 Docket No. 50-335 Florida Power & Light Company ATTN: Dr. Robert E. Uhrig Vice President Nuclear and General Engineering Post Office Box 013100

Miami, Florida 33101 cc: Robert Lowenstein, Esquire Lowenstein, Newman, Reis & Axelrad

1025 Connecticut Avenue, N. W.

Washington, D. C. 20036 Norman A. Coll, Esquire McCarthy, Steel, Hector & Davis

14th Floor, First National Bank Building Miami, Florida 33131 Indian River Junior College Library

3209 Virginia Avenue Ft. Pierce, Florida 33450

Docket No. 50-302 Mr. W. P. Stewart Director, Power Production Florida Power Corporation P. 0. Box 14042, Mail Stop C-4 St. Petesburg, Florida 33733 cc: Mr. S. A. Brandimore Vice President and General Counsel P. 0. Box 14042 St. Petersburg, Florida 33733 Crystal River Public Library Crystal River, Florida 32629

Docket No. 50-315 Indiana & Michigan Electric Company Indiana & Michigan Power Company ATTN: Mr. John Tillinghast Vice President P. 0. Box 18 Bowling Green Station

• New York, New York 10004 cc: Mr. Robert Hunter Vice President American Electric Power Service Corporation

2 Broadway New York, New York 10004 Gerald Charnoff, Esquire Shaw, Pittman, Potts & Trowbridge

1800 M Street, N. W.

Washington, D. C. 20036 Donald Cook Nuclear Plant ATTN: Mr. D. Shaller Plant Manager P. 0. Box 458 Bridgman, Michigan 49106 Mr. David Dinsmore Comey Executive Director Citizens for a Better Environment

59 East Van Buren Street Chicago, Illinois 60605 Maude Reston Palenske Memorial Library

500 Market Street St. Joseph, Michigan 49085

Jo- Docket No. 50-289 Metropolitan Edison Company ATTN: Mr. J. G. Herbein Vice President P. 0. Box 542 Reading, Pennsylvania 19603 cc: GPU Service Corporation Richard W. Heward, Project Manager Mr. T. Gary Broughton, Safety and Licensing Manager

260 Cherry Hill Road Parsippany, New Jersey 07054 Pennsylvania Electric Company Mr. R. W. Conrad Vice President, Generation

1001 Broad Street Johnstown, Pennsylvania 15907 Miss Mary V. Southard, Chairman Citizens for a Safe Environment P. 0. Box 405 Harrisburg, Pennsylvania 17108 Government Publications Section State Library of Pennsylvania Box 1601 (Education Building)

Harrisburg, Pennsylvania 17126 Docket No. 50-336 Northeast Nuclear Energy Company ATTN: Mr. D. C. Switzer President P. 0. Box 270

Hartford, Connecticut 06101 cc: William H. Cuddy, Esquire Day, Berry & Howard Counselors at Law One Constitution Plaza Hartford, Connecticut 06103 Northeast Nuclear Energy Company ATTN: Superintendent Millstone Plant P. 0. Box 128 Waterford, Connecticut 06385 Waterford Public Library Rope Ferry Road, Route 156 Waterford, Connecticut 06385

Docket Nos. 50-282 and 50-306 Northern States Power Company ATTN: Mr. L. 0. Mayer, Manager Nuclear Support Services

414 Nicollet Mall - 8th Floor Minneapolis, Minnesota 55401 cc: Gerald Charnoff, Esquire Shaw, Pittman, Potts and Trwobridge

1800 M Street, N. W.

Washington, D. C. 20036 Mr. F. P. Tierney Plant Manager Prairie Island Nuclear Generating Plant Northern States Power Company Route 2 Welch, Minnesota 55089 Sandra S. Gardebring Executive Director Minnesota Pollution Control Agency

1935 W. County Road B2 Roseville, Minnesota 55113 Jocelyn F. Olson, Esquire Special Assistant Attorney General Minnesota Pollution Control Agency

1935 West County Road B-2 Roseville, Minnesota 55113 Mr. Robert L. Nybo, Jr., Chairman Minnesota-lWisconsin Boundary Area Commission

619 Second Street Hudson, Wisconsin 54016 The Environmental Conservation Library Minneapolis Public Library

300 Nicollet Mall Minneapolis, Minnesota 55401

Docket No. 50-285 Omaha Public Power District ATTN: Mr. Theodore E. Short Division Manager - Production Operations

1623 Harney Street Omaha, Nebraska 68102 cc: Margaret R. A. Pardis LeBoeuf, Lamb, Leiby & MacRae

1757 N Street, N. W.

Washington, D. C. 20036 Blair Public Library

1665 Lincoln Street Blair, Nebraska 68008 Docket No. 50-344 Portland General Electric Company ATTN: Mr. Charles Goodwin, Jr.

Assistant Vice President

621 SW Alder Street Portland, Oregon 97205 cc: Mr. H. H. Phillips Portland General Electric Company

621 Southwest Alder Street Electric Building Portland, Oregon 97205 Warren Hastings, Esquire Phillips, Coughlin, Buell Stoloff and Black

807 Electric Building Portland, Oregon 97205 Mr. J. L. Frewing, Manager Generation Licensing and Analysis Portland General Electric Company

621 Southwest Alder Street Portland, Oregon 97205 Columbia County Courthouse Law Library, Circuit Court Room St. Helens, Oregon 97051

Docket No. 50-272 Public Service Electric & Gas Company ATTN: Mr. R. P. Librizzi General Manager - Electric Production Production Department

80 Park Place, Room 7221 Newark, New Jersey 07101 cc: Richard Fryling, Jr., Esquire Assistant General Counsel Public Service Electric & Gas Company

80 Park Place Newark, New Jersey 07101 Troy B. Conner, Jr., Esquire

1747 Pennsylvania Avenue, N. W.

Washington, D. C. 20006 Gene Fisher Bureau Chief Bureau of Radiation Protection

380 Scotts Road Trenton, New Jersey 08628 State House Annex ATTN: Deputy Attorney General State of New Jersey

36 West State Street Trenton, New Jersey 08625 Attorney General Department of Law & Public Safety State House Annex Trenton, New Jersey 08625 Public Service Electric & Gas Company a ATTN: Herbert J. Heller Manager, Salem Nuclear Generating Station Hancocks Bridge, New Jersey 08038 Salem Free Library *

112 West Broadway Salem, New Jersey 408079 Public Service Electric & Gas Company ATTN: R. L. Mittl General Manager - Licensing and Environment

80 Park Place Newark, New Jersey 07101

Docket No. 50-244 Rochester Gas & Electric Corporation ATTN: Mr. Leon D. White, Jr.

Vice President Electric and Steam Production

89 East Avenue I;

Rochester, New York 14604

.cc: Lex K. Larson, Esquire& MacRae LeBoeuf, Lamb, Leiby

1757 N Street, N. W.

Washington, D. C. 20036 Mr. Michael Slade

1250 Crown Point Drive Webster, New York 14580

Rochester Committee for Scientific Information Robert E. Lee, Ph.D

Post Office Box 5236 River Campus Station Rochester, New York 14627 Jeffrey Cohen New York State Energy Office Swan Street Building Core 1, Second Floor Empire State Plaza Albany, New York 12223 Programs Director, Technical Development State of New York Energy Office Agency Building 2 Empire State Plaza Albany, New York 12223 Rochester Public Library

115 South Avenue Rochester, New York 14627

Docket No. 50-312 Sacramento Municipal Utility District ATTN: Mr. J. J. Mattimoe Assistant General Manager and Chief Engineer

6201 S Street P. O. Box 15830

Sacramento, California 95813 cc: David S. Kaplan, Secretary and General Counsel

6201 S Street P. 0. Box 15830

Sacramento, California 95813 Business and Municipal Department Sacramento City-County Library

828 I Street Sacramento, California 95814 Docket No. 50-206 Southern California Edison Company ATTN: Mr. James H. Drake Vice President

2244 Walnut Grove Avenue Post Office Box 800

Rosemead, California 91770

cc: Rollin E. Woodbury, Vice President and General Counsel Southern California Edison Company Post Office Box 800

Rosemead, California 91770

Chickering & Gregory, General Counsel ATTN: C. Hayden Ames, Esquire San Diego Gas & Electric Company

111 Sutter Street San Francisco, California 94104 Mission Viejo Branch Library

24851 Chrisanta Drive Mission Viejo, California 92676

Docket Nos. 50-280

and 50-281 Virginia Electric & Power Company ATTN: Mr. W. L. Proffitt Senior Vice President - Power P. 0. Box 26666 Richmond, Virginia 23261 cc: Michael W. Maupin, Esq.

Hunton, Williams, Gay & Gibson P. 0. Box 1535 Richmond, Virginia 23213 Swen Library College of William & Mary Williamsburg, Virginia 23185 Docket Nos. 50-266 and 50-301 Wisconsin Electric Power Company Wisconsin Michigan Power Company ATTN: Mr. Sol Burstein Executive Vice President

231 West Michigan Street Milwaukee, Wisconsin 53201 cc: Mr. Arthur M. Fish Document Department University of Wisconsin -

Stevens Point Library Stevens Point, Wisconsin 54481 Docket No. 50-305 Wisconsin Public Service Corporation ATTN: Mr. E. W. James Senior Vice President Post Office Box 1200

Green Bay, Wisconsin 54305 cc: Steven E. Keane, Esquire Foley, Sammond & Lardner

777 East Wisconsin Avenue Milwaukee, Wisconsin 53202 Bruce W. Churchill, Esquire Shaw, Pittman, Potts & Trowbridge

1800 M1Street, N. W.

Washington, D. C. 20036 Kewaunee Public Library

314 Milwaukee Street Kewaunee, Wisconsin 54216

- -

Docket No. 50-29 Yankee Atomic Electric Company ATTN: Mr. Robert H. Groce Licensing Engineer

20 Turnpike Road Westboro, Massachusetts 01581 cc: Mr. Donald G. Allen, President Yankee Atomic Electric Company

20 Turnpike Road Westboro, Massachusetts 01581 Greenfield Public Library

40 Main Street Greenfield, Massachusetts 01581

Docket No. 50-309 Yankee Atomic Electric Company ATTN: Mr. Robert H. Groce Licensing Engineer

20 Turnpike Road Westboro, Massachusetts 01581 cc: Mr. E. W. Thurlow, President Maine Yankee Atomic Power Company

9 Green Street Augusta, Maine 04330

Mr. Donald E. Vandenburgh Vice President - Engineering Yankee Atomic Electric Company

20 Turnpike Road Westboro, Massachusetts 01581 John A. Ritsher, Esquire Ropes & Gray

225 Franklin Street Boston, Massachusetts 02110

Mr. John M. R. Paterson Assistant Attorney General State of Maine Augusta, Maine 04330

Harold P. Green, Esquire Suite 1000

The Watergate

600 New Hampshire Avenue, N. W.

Washington, D. C. 20037 Mr. Nicholas Barth Executive Director Sheepscot Valley Conservation Association, Inc.

P. 0. Box 125 Alna, Maine 04535 Wiscasset Public Library Association High Street Wiscasset, Maine 04578 Mr. Robert R. Radcliffe Office of Energy Resources

55 Capitol Street Augusta, Maine 04330

Mrs. Cali Hollander, President SAFE POWER FOR MAINE

Stockton Springs, Maine 04981

ENCLOSURE 1 STEAM GENERATOR OPERATING

HISTORY QUESTIONNAIRE

NOTE: All percentages should be reported to four significant figures.

I. BASIC PLANT INFORMATION

Plant:

Startup Date:

Utility:

Plant Location:

Thermal Power Level:

Nuclear Steam Supply System (NSSS) Supplier:

Number of Loops:

Steam Generator Supplier, Model No. and Type:

Number of Tubes Per Generator:

Tube Size and Material:

II. STEAM GENERATOR OPERATING CONDITIONS

Normal Operation Temperature:

Flow Rate: Allowable Leakage Rate:

Primary Pressure:

Secondary Pressure:

Accidents Design Base LOCA Max. Delta-P:

Main Steam Line Break (MSLB) t4ax. Delta-P:

III. STEAM GENERATOR SUPPORT PLATE INFORMATION

Material:

Design Type Design Code Dimensions:

Flow Rate:

Tube Hole Dimensions:

Flow Hole Dimensions:

IV. STEAM GENERATOR BLOWDOWN INFORMATION

Frequency of Blowdown:

Normal Blowdown Rate:

Blowdown Rate w/Condenser Leakage:

Chemical Analysis Results Results Parameter Control Limits V. WATER CHEMISTRY INFORMATION

Secondary Water Type of Treatment and Effective Full Power (EFP) Months of Operation:

Typical Chemistry or Impurity Limits:

Feedwater Typical Chemistry or Impurity Limits:

Condenser Cooling Water Typical Chemistry or Impurity Limits:

Demineralizers - Type:

Cooling Tower (open cycle, closed cycle or none):

-3- to Babcock & Wilcox (B&W) S.G. only)

VI. TURBINE STOP VALVE TESTING (applicable Frequency of Testing Actual:

Manufacturer Recommendation:

Power Level At Which Testing Is Conducted Actual:

Manufacturer Recommendation:

rate, etc.)

Testing Procedures (Stroke length, stroke Actual:

Manufacturer Recommendation:

VII. STEAM GENERATOR TUBE DEGRADATION HISTORY

scheduled ISI)

(The following is to.be repeated for each Inservice Inspection (ISI) Date:

Last Inspection:

Number of EFP Days of Operation Since each steam generator)

(The following is to be repeated for Steam Generator Number:

ISI:

Percentage of Tubes Inspected At This That Had Been Inspected At Percentage of Tubes Inspected At This ISI

The Previous Scheduled ISI:

_ _ -- _i - ' en4, Th4i 7T4U

Percentage of Tubes rluggea rriul %- 1... ,',.

Percentage of Tubes Plugged At This ISI:

That Did Not Exceed Degradation Limits:

-. .i Percentage of Tubes Plugged Percentage of Tubes Plugged As A Result of Exceedance of Degradation Limits:

Results:

Sludge Layer Material Chemical Analysis I

Sludge Lancing (date):

Ave. Height of Sludge Before Lancing:

Ave. Height of Sludge After Lancing:

Action Considered: (Briefly Replacement, Retubing or Other Remedial Specify Details)

Support Plate Hourglassing:

Support Plate Islanding:

Tube Metalurgical Exam Results:

-4 -

Fretting or Vibration in U-Bend Area (not applicable to B&W S.G.) AS OF (4)

Percentage of Tubes Plugged Other Preventive Measures

1#

4 Wastage/Cavitation Erosion AS OF (4)

Hot:Leq: (Repeat this information for the cold leg on Combustion Engineering (C.E.) and Westinghouse (W) S.G.)

Area of Tube Bundle (1) I a I b I c d e

% of Tubes Affected by Wastage/Cavitation Erosion

% of Tubes Plugged Due to Exceedance of Allowable Limit (2)

% of Tubes Plugged That 0

Did not Exceed Degradation Limit Location Above Tube Sheet (3)

Max. Wastage/Cavitation Erosion Rate for Any Single Tube (Tube Circum. Ave) (Mills/Month)

Max. Wastage/Cavitation Erosion in Any Single Unplugged Tube (Tube Circum. Ave) (Mills)

Cracking AS OF -(4 Caustic Stress Corrosion Induced in C.E. and W S.G.

Flow Induced Vibration Caused in B&W S.G.

-5- Cracking (Con't)

C.E. and W S.G.)

Hat Leg: kKepeat this information for the cold leg on Area of Tube Bundle (1) I a I b I c. Lldj el

% of Tubes Affected By Cracking

% of Tubes Plugged Due to Cracking

% of Tubes Plugged That Did Not Exceed Degradation Limit Location Above (3)

Tube Sheet Rate of Leakage From Leaking Cracks (gpm)

OF (4)

Denting (Not applicable to B&W S.G.) AS

cold leg on C.E. and W S.G.)

Hot Leg: (Repeat this information for the b c d e Area of Tube Bundle (1)

% of Tubes Affected by Denting ' I l .

1- - - -

% of Tubes Plugged Due to Exceedance of Allowable Limit (2) - I - T 1-

% of Tubes Plugged That Did Not Exceed Degradation Limit Rate of Leakage From Leaking Dents (gpm) I

Max. Denting Rate for Any Single Tube (Tube I I 1*

Circum. Ave) (Mills/Month) -

Max. Denting in Any Single Unplugged Tube (Tube Circum. Ave) (Mills)Wt

-6 -

Denting (Con't)

Support Max Denting in Any Single  % of Tubes Affected By Plate Tubi in Bundle Area Levels (TutIbe> Ave) (Mills) (1) Denting in Bundle Area a b c d e a b c d e

3 - _ I_ _ _ I

I - -

IC 1I

11I

U

- 7 -

TABLE KEY

within a given NOTE: All percentages refer to the percent of the tubes area of the tube bundle.

(1)

Area of the Tube Bundle No. of Tubes Within the Area a. Periphery of Bundle (wi/20rows for B&W;

wi/10 rows for C.E. and W)

b. Patch Plate (wi/4 rows)

c. Missing Tube Lane (B&W only)

(wi/5 rows)

c. Flow Slot Areas (C.E. and W only)

wi/10 rows)

d. Wedge Regions (C.E. and W only)

(wi/8 rows)

e. Interior of Bundle (remainder of tubes)

(2)

Allowable Limit for Wastage/Cavitation Erosion:

Allowable Limit For Denting:

(3)

support plate

1. Specifies area between the tube sheet and the first locations)

2. Specifies in the following locations: (list the additional Wastage/Cavitation Erosion:

Cracking:

(4)

Specify the date of the inspection for which results have been tabulated.

VIII. SIGNIFICANT STEAM GENERATOR ABNORMAL OPERATIONAL EVENTS

DATE SUMMARY

(Include event description; unscheduled 15 results, if performed; and subsequent remedial actions)

Ix. CONDENSER INFORMATION

Condenser Tube Leakage Detectable Detection Material Date Rate (gpm) Limit Method X. RADIATION EXPOSURE HISTORY WITH RESPECT TO STEAM GENERATORS

Date l Exam Dosage (Man-Rem) Repair Dosage (Man-Rem)I Comments

- 9 -

TEN

XI. DEGRADATION HISTORY FOR EACH TYPE OF DEGRADATION EXPERIENCED FOR

OR MORE

REPRESENTATIVE, UNPLUGGED TUBES FOR WHICH THE RESULTS OF TWO

ISI'S ARE AVAILABLE

If the results for ten tubes are not available, specify this infor- mation for all those tubes for which results are available.

type)

(repeat the following information for each tube and degradation Steam Generator No:

Tube Identification:

Type of Degradation: (specify denting, wastage, cavitation erosion, caustic stress corrosion cracking, or flow induced vibration cracking)

(repeat the following information chronologically for each ISI

for which results are available)

ISI Date:

Amount of Degradation: (specify amount and units)

EFP Months of Operation Since Last ISI for Which Results are Given: