ML17305A340

Unit 3 Steam Generator Eddy Current Exam,First Refueling Outage Apr 1989, NDE Summary Rept

ML17305A340
Person / Time
Site:	Palo Verde
Issue date:	07/18/1989
From:	Mary Anderson ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:
Shared Package
ML17305A339	List: ML17305A338 ML17305A340
References
NUDOCS 8911030141
Download: ML17305A340 (32)

Text

PALO VERDE NUCLEAR GENERATING STATION UNIT 3 STEAM GENERATOR EDDY CURRENT EXAMINATION 1ST REFUELING OUTAGE APRIL 1989 I

ARIZONA NUCLEAR POWER PROJECT P. 0. BOX 52034 PHOENIX, AZ 85072 PREPARED BY: DATE:

REVIEWED BY: DATE:

APPROVED BY: DATE:

COMMERCIAL SERVICE DATE: 1/8/88 REPORT DATE: 7/11/89

INDEX 1.0 Summary 2.0 Examination Results 3.0 Examination Techniques and Equipment APPENDIX A CE Steam Generator Support Reference Drawing APPENDIX B Summary Data Sheets APPENDIX C Tubesheet Maps APPENDIX D Form NIS-1

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The group B as well as two adjacent tubes, (R51, L06 and R52, L07), produced signals indicative of secondary side possible loose parts (PLP). In addition, leakage was visually observed at the Groups A and C tubesheet areas by use of a remote camera installed in each S/G primary channel-head.

A secondary side visual examination for the tubing in Groups B and C was performed utilizing a fiberoptic technique, with accessibility being pro-vided by cutting a window in adjacent tubes via an electron discharge machining (EDM) operation performed by Combustion Engineering. The visual examination confirmed the eddy current results for Groups B and C, and the final disposition of the secondary side loose part issue was addressed in Engineering Evaluation Request //89-RC-051. All tubing associated with Groups A, B, or C were preventatively staked and/or plugged as necessary.

The remaining indications consisted of a small number of tubes exhibiting

( 20X thru-wall signals at various locations. Some minor denting was also evident on several tubes. The majority of these indications were identified during the baseline examination and no significant changes were observed.

Sludge profiling was performed during the examination and found to be mini-mal. Less than 1.0X of the tubing exhibited sludge indications at the top of the tubesheet with the average depth being less than 1.0 inch.

The examination resulted in plugging an additional 7 (seven) tubes in steam generator 31 and 10 (ten) tubes in steam generator 32. Combustion Engineering welded type plugs were used for all tube ends and Engineering Evaluation Requests numbers 89-RC-058 and 89-RC-059 were initiated to track the examination results and subsequent plugging. The tube sheet maps in Appendix C show the total tubes plugged in each steam generator to date.

Appendix B contains the summary data sheets which list all tubes in each steam generator with thru-wall indications from 0-100X and possible loose parts (PLP). The NIS-1 form in Appendix D lists each of the tubes, by row and line, plugged as a result of this examination.

3.0 Examination Techniques and Equipment The eddy current examination was performed by Conam Inspection using Zetec MIZ-18 digital data acquisition and analysis systems. The following fre-quencies were used for the tube examination(s):

550 KHZ NOTE: All frequencies were utilized in both 990 KHZ differential and absolute modes.

100 KHZ 20 KHZ All tubing was tested with standard Zetec manufactured SFM/HF probes.

A rotating pancake probe was used to characterize the indications at various locations. Data acquisition was facilitated by using Zetec SM-10 "no entry" probe positioning fixtures in both hot and cold leg S/G plenums.

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APPENDIX A

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Appendix A CE SYSTEM 80 STEAM GENERATOR TUBE SUPPORT DIAGRAM YS1 2 3 0 5 6 7 BM1 09H 09C

$ 5II 08H 08C 05" 07H 07C I 1" 06C 06H

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$ 3tl d3" 02C 02H 15.5" 32.5" 01H 01C TUBESHEET 23.5" INLET OUTLET SUPPORT SPACINGS ARE IDENTIFIED IN INCHES BETWEEN THE SUPPORT IDENTIFICATION Page 1 oE 1

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APPENDIX B P ry

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Appendix B ROW: Indicates the row number of a given tube.

LIN: Indicates the column number of a given tube.

LEG: Indicates the tube leg from which examination was performed; either the hot (H) leg or cold (C) leg.

EXTIST RE}: Indicates the tube length required to be examined, i.e., F/L full length, 07H-seventh support on hot leg side.

EXTlXZ TST: Indicates the tube length actually examined.

REM Remarks column used for comments relating to examination.

RPI: indicates a plugging limit criteria REEL Indicates reel number'ata was recorded on.

PROBE: Indicates probe diameter and style used for examination.

LOCATION: Gives=indication location relative to known landmarks such as supports and batwings. Location codes are as follows:

¹1 Vertical Support Strap..............VSl

¹1 Bat Wing............................BW1

¹1 Support Plate in Hot. Leg............01H

¹7 Support Plate in Cold Leg...........07C Top Tube Sheet Hot Leg.................TSH Top Tube Sheet Cold Leg................TSC Tube End Hot Leg.......................TEH Tube End Cold Leg......................TEC VOLTS: Indicates the peak-to-peak voltage of a given indication response.

DEG: The measured phase angle of a given indication response.

The percent through the tube wall of a given indication based on the measured phase angle/amplitude and the calibration curve established for that particular channel, or analysis comment codes, e.g., PLP = Possible Loose Parts, etc.

CH: Indicates the channel used to measure and evaluate a given indication.

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Appendix B CUNJLATIVE REPORT 03/89,'ARIZONA PUBLIC SERVICE CO.,'ALO VERDE, UNIT 3-L STEAM GENERATOR: 31 PAGE: 1 OF 1 LOCAT ION: ALL DATE: 07/02/89 CRITERIA: OX TO 100X, PLP TIME: 09: 57: 21 EXAM EXTENT CURRENT

) RCM (LIN(HEAT5(LEG)PROGRAM) ACTUAL/REM)REEL(PROBE) LOCATION ) VOLTS(MIL)DEG) X (CH)

I I I I I I I I I I I I I I I 67)-10) C )

01C-02C ) 01C-02C) RPI ( 188) 620ZR) 01C+ 1.31 04) ) 90) 51) 1(

I I I C )TEC-TEH(TEC-TEH( ) 027(610SL(01C+ 1. 1 1. 1) ) 122) 44 1)

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66) 11) C )01C-02C)01C-02C) RPI I 188(620ZR(01C+ 1. 09 43) ) 42) 78) 1)

I I I C )TEC-TEH(TEC-TEH) I 027(610SL)01C+ 1. 0 9.2( I 78( 77( 1)

Wl 6&) 11( C (TEC-TEH(TEC-TEH( I 027(610SL(01C+ 0. 8 0.7( (110( 37(M1(

I I I C )01C-02C(01C-02C) RPI ( 18&(620ZR) 01C+ 0.71 0.3) ( 77( 57) 1)

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(144( 591 H )TEH-TEC)TEH-TEC) 1401610SMI VS5- 0. 8 0.8) ( 0) 20)M2)'.

28) 73( ) C )TEC-TEH)TEC-TEH) 068) 610SM) 01C+ 0. 7 1( ) 164( <20(M4(

~ "(154( 83) ) H )TEH-TEC)TEH-TEC) 159) 610SM) VS1+ 0. 9 0.5) 0) <20)M2)

I I I ) H )TEH-TEC)TEH-TEC) 159)610SM)VS5+ 0.9 1.9) 0) 32)M2)"

)1591 88( ( H )TEH-TEC)TEH-TEC) 165) 610SM) VS3+ 0. 9 2.7) 0) 39)M2)

)153)100) ) H )TEH-TEC)TEH-TEC) 120)610SMI VS3+ 0. 9 1.3). 0) 28)M2)

86) 133) ) C )TEC-TEH(TEC-TEH) 146) 610SM) VS3+ 0. 5 2.2( OI 37(M2(

42)163) ) H )TEH-TEC)TEH-TEC) 052)600SM)02H+ 0.4 0 .6) )129) 21)M1(

I I I I I I I I I I I I M+GER OF TU3ES SELECTED FROM CURRENT OUTAGE: 10 NO TREND ANALYSIS RE(JESTED COhQM, INSPECTION Page 2 of 3

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Appendix B

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CUi%LAT'IVE REPORT 03/&9, ARIZONA PUBLIC SERVICE CO., PALO VERDE, UNIT 3 STREAM GENERATOR: 32 PAGE: 1 OF 1 LOCATION: ALL DATE: 07/02/89 CRITERIA: OX TO 100Ã,PLP TINE: 10: 10: 19 EXAM EXTENT 'CURRENT

) RCM) LIN(HEATS(LEG)PROGRAM) ACTUAL)REM) REEL) PRCGE) LOCATION )VOLTS)MIL)DEG) X )CH)

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47) 6) C )TEC-TEH)TEC-TEH) 004 ( 6 10SL ) VS4- 0.8 0. 6) 0)<20)N2)

I I C ) TEC-TEH(TEC-TEH) 004) 610SL) VS4+ 0.8 0.9) 0(<20(N2(

49) 6) C )01C-02C)01C-02C(RPI) 192)620ZR)01C+ 0.59TO+ 1.61) 10.4) 0)PLP) S(

C )TEC-TEH)TEC-TEH) 004) 610SL) 01C+ 1 3 0.7) (133) 3S) 1)

C )01C-02C)01C-02C) 192)620ZR)01C+ 1. 27 0.3( )112) 32 ) 1 )

C (TEC-TEH) TEC-TEH) 004) 610SL) 01C+ 1.2 0. 1) )2S9)PLP)08)

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I 51 I 61 C )01C-02C)01C-02C)RPI) 192)620ZR)01C+ 0.60TO+ 1.58) 2.1) 0)PLP( 5)

I I I C )TEC-TEH)TEC-TEH) 004 (610SL) 01C+ 0.9 TCH. 0.0 ) 3.7) (288)PLP)08) 6( 50) 7) C )01C-02C)01C-02CIRPI) 192)620ZR)01C+ 0. 73TO+ 1.851 3. 01 0(PLP) 5(

) C )TEC-TEH)TEC-TEH) 005) 610SL ( 01C+ 1.6 I )PLP) 8)

C )TEC-TEH)TEC-TEH) 0051610SL I 01C+ 1.5 1.21 )140) 28) 1)

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01C-02C )

01C-02C( 192) 620ZR) 01C+ 1. 12 0.3 ) 113) 31) 1)

52) 7) I C 101C-02C 101C-02C I RPI I 1921620ZR I 01C+ 1. 17TCH. 2.001 0.9 I 0 IPLP I 51 I I C (TEC-TEH)TEC-TEH) 005) 610SL) 01C+ 1.9 TO+ 0.0 I (PLPI &I 43( 18( ) C )TEC-TEH)TEC-TEH) 008) 610SL ) 01C+ 0.3 0.61 ) 128) <20 (Nl )

2) 25( C ) TEC-TEH) TEC-TEH) 003(590SMI02C- 0.5 0.61 0( <20)N2) 851 461 C )TEC-TEH)TEC-TEH) 033) 610SL(VSS+ 0.8 0. 7) 0)<20)N2)

99) 52) C ) TEC-TEH) TEC-TEH( 035) 610SL) VS2- 0.5 0.6) OI<20IN21 75 ) 70) C )TEC-TEH)TEC-TEH) 0631600SMI07C- 0.6 0.&I ) 144 ) <20 ) Nl )

74) 85) C )TEC-TEH)TEC-TEH) 081) 600SN(BW1+ 10. 7 1. 21 ) 152) <20)N4)

-(159 ) 96) H )TEH-TEC(TEH-TEC) 117) 610SM) VS1+ 0.0 0. 7) 0) 21)N2) 36(103) H (TEH-TEC)TEH-TEC) 166) 610SM) VS4- 0.6 0.6) 0) 20)M2) 99)106( H )TEH-TEC)TEH-TEC) 162)610SN)VS2+ 11.9 1.1) ) 126( 39 ( 1)

)150)127) H )TEH-TEC(TEH-TEC( 091) 610SN) VSS+ 1.7 0. 7) ) 133) 32) 1) 76)143( H (TEH-TEC)TEH-TEC) 078 ) 610SM(BW2+ 0.9 1. 7) ) 180 ) <20 )

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- ) 100 ) 151) H (TEH-TEC(TEH-TEC) 069) 610SL) VS2+ 2.8 1. 01 )121) 38) 1)

)106)159) H (TEH-TEC)TEH-TEC(RPI) 051 ) 610SL ( VS3- 0.7 1.3) )101) 47)Nl) g( 91)170) C )TEC-TEH)TEC-TEH( 0501600SMI01C+ 1.1 7. 9) 65( 86) 1)

I I I I C 101C-02C I 01C-02CI RPI I 191 ) 620ZR) 01C+ 0. 97 2.4) 35) 83) 1) c,) 93) 170) C ) 01C-02C) 01C-02C) RPI) 191 ) 620ZR) 01C+ 0. 75 0. SI 681 581 11 I I I C )TEC-TEH)TEC-TEH) 10715 90SM) 01C+ 0.6 1. 91 861 66)N1)

74) 173) ) C )TEC-TEH)TEC-TEH) 105) 590SM(VSS+ 0.6 0. 81 11571 <20 IN41

49) 184) C )TEC-TEH)TEC-TEH) 095 (610SM) VS4+ 0.8 0.8) 0) <20(N2)

I I I I I I I I I I I I I M>GER OF TU3ES SELECTED FROM CURRENT OUTAGE: 22 NO TREND ANALYSIS RE<QUESTED X

CONAN. INSPECTION Page 3 of 3.

APPENDIX C I

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07/89, ARIZONA PUBLIC SERVICE CO., PALO VERDE, UNIT 3 STEAN GENERATOR: 31 OATE: 07/02/89 TINE: 09: 54: 11 LOCATION: ALL CRITERIA: PLG PLG 80 STAYS 150 150 140 140 30 X 130 120 120 110 110 100 100 90 90 80 80 70 70 60 60 50 50 40 40 30

%0 20 20 10 10 90 100 110 120 130 140 150 160 170 180 10 20 30 40 50 60 70 80 CCHAH ItlSPKCTZCM

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07/89, ARIZONA PUBLIC SERVICE CO., PALO VERDE, UNIT 3 STEAN GENERATOR: 32 DATE: 07 02 89, TIME'9: 12: 00 LOCATION: ALL CRITERIA: PLG PLG 93 V V

STAYS

" 15 150 140 14

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130 v 13 C5 120 12 X ~ <

110 11 O 100 10 90 90 80 80" 70 70 60 60 50 50 40 40

, I~ I 30 30 20 20 Vl 10 I vv r; 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 CCRC IHSPECtTGM

APPENDIX D Cj 1

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~ -.ANPP NIS- I FORM OWNERS'ATA REPORT FOR INSERYICE INSPECTIONS

1. OWNER ARIZONA PUBLIC SERYICE COMPANY, ET AL ADDRESS P.O. BOX 53999 PHOENIX, ARIZONA

2. PLANT PALO YERDE NUCLEAR GENERATING PLANT ADDRESS 0 MILES SOUTH WINTERSBURG, ARIZONA

3. UNIT NUMBER:

d. OWNERS CERTIFICATE OF AUTHORIZATION NONE

5. COMMERCIAL SERVICE DATE: 1/8/88

6. COMPONENTS INSPECTED:

COMPONENT OR MANUFACTURER SERIAL STATE OR NATIONAL APPURTENANCE OR INSTALLER NUMBER PROYINCE BOARD NO 3HRCEE01A COHBUSTION 79273-1 N/A 22478 STEAH GENERATOR 31 ENGINEERING TUBING 3HRCEE01B COHBUSTION 79273-2 N/A 22479 STEAH GENERATOR 32 ENGINEERING TUBING PAGE 1.0F 2-

A J ANPP NIS-1 BACK OWNERS'ATA REPORT FOR INSERV ICE INSPECTIONS

7. EXAM DATES ~Q39 TO ~12L89

8. INSPECTION INTERVAL FROM ~l LGBTO ~1ZL97

9. ABSTRACT OF EXAMINATIONS. INCLUDE A LIST OF EXAMINATIONSAND A STATEMENT CONCERNING STATUS OF WORK REQUIRED FOR CURRENT INTERVAL.

One hundred percent of the tubing in each steam generator was examined.

Several degraded/defective tubes were observed. These are documented in Appendix B of this report.

The following tubes were plugged and/or staked as a result of this examination:

S/G 31: R67L10, R66L11, R68L11, R154L83, R159L88, R153L100, R86L133.

S/G 32: R49L06, R51L06, R501,07, R52L07, R99L106, R150L127, R100L151 R106L159, R91L170, R93L170

': Common Interval Date WE CERTIFY THAT THE STATEMENTS MADE IN THIS REPORT ARE CORRECT AND THE EXAMINATIONSAND CORRECTIVE MEASURES TAKEN CONFORM TO THE RULES OF THE ASME CODE, SECTION XI.

DATES'SIGNED: ARIZONA PUBLIC SERVICE COMPANY BY CERTIFICATE OF INSERYICE INSPECTION I, THE UNDERSIGNED, HOLDING A YALID COMMISSION ISSUED BY THE NATIONALBOARD OF BOILER AND PRESSURE VESSEL INSPfCTORS AND THE STATE OF PROYINCE OF ARIZONA f MPLOYED BY KEMPER GROUP OF LONG GROVE, ILLINOIS HAYE INSPECTED THE COMPONENTS DESCRIBED IN THIS OWNERS REPORT DURING THE PERIOD ~4BS TO ~EBS, AND STATE THAT TO THE BfST OF MY KNOWLEDGE AND BELIEF, THE OWNER HAS PERFORMED EXAMINATIONSAND TAKEN CORRf CTIYE MEASURES DESCRIBED IN THIS OWNERS 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 EXAMINATIONSAND CORRECTIYE MEASURES DESCRIBED IN THIS OWNERS 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.

INSPECTOR COMMISS ION S DATf + AT'L BOARD, STATE, PROVINCE

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