ML20077N679

Forwards Steam Generator Primary Svcs Field Svc Rept SCP-17, Steam Generator Eddy Current Insp & Mechanical Plugging, Vols 1-3

ML20077N679
Person / Time
Site:	Callaway
Issue date:	08/12/1991
From:	Blosser J UNION ELECTRIC CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20077N682	List: ML20077N679
References
ULNRC-2459, NUDOCS 9108150051
Download: ML20077N679 (22)

Text

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August 12, 1991

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U. S. Nuclear ReCulatory Commission Document Control Desk Washington, DC 20555 ULNRC 2459 Centlemen:

DOCKET NUMBER 50-403 CALLAWAY PLANT UNIT 1 FACILITY OPEPATING LICENSE NPF-30 SPECIAL ltEPORT 90 04 (SOS 90-3060)

RESULTJ OF 7}JLE FIFTil S'[EAM CENERATOR TQHI INSERVIQE. INSPECTLQIf Ref: ULNRC 2318, dated 11/5/90 The enclosed Special Report is submitted pursuant to the requirements of Callaway Technical Specification 4.4.5.5.b concerning the fifth Inservice Eddy Current Inspection of Steam Generators

'A' and

'D' performed in October 1990, during Callaway Plant's fourth refueling outa.go. This report includes the final Vestinghouse results of the inspection.

c/j.J)$a</

J. D. Blosser Manager, Callaway Plant 1 P6 J DB/TPS/ Mall /l rj

Enclosures:

Special Report 90 04 Eddy Current Exam, Westinghouse Nuclear Services Division ec: Distribution attached 1 !*, n !' (\\ ;

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' ec distribution for ULNRC 2459 Mr. A. Bert Davis Mr. M. David Lynch, Jr. (2 copies)

Regional Administrator U.S. Nucicar Regulatory Commission U.S. Nuclear Regulatory Commission OVFN Mail Stop 13E21 Region 111 Washington, D.C.

20555 799 Roosevelt Road Clen Ellyn, IL. 60137 Manager, Electric Department Mr. Ilarold K. Chernoff Missouri Public Service Commission Supervisor Licensing P.O. Box 360 Wolf Creek Nuclear Operating Corp.

Jefferson City, MO 6$102 P. O. Box 411 Burlington, KS 66839 Records Center-Mr. R. L. llague Institute of Nuclear Power Operations Chief. Project Section 3C Suite 1500 U.S.-Nuclear Regulatory Commission 1100 Circle 75 Parkway Region III Atlanta, CA 30339 799 Roosevelt Road Clen Ellyn, IL 60137 i

NRC Senior Resident' Ins,pector l

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SPECIAL REPORT 90 04 RESULTS OF FIFTH STEAM CENERATOR TUBE INSERVICE INSPECTION This report is submitted in accordance with Technical Specification (T/S) 4.4.5.5 b which states:

"The complete results of the steam generator tube inservice inspection shall be cubmitted to the Commission in a Special Report purst.nt to Specification 6.9.2 within 12 months following the completion of the inspection.

This Special Report shall include:

(1) Number and extent of tubes inspected, (2) Location and percent of wall thickness penetration: for each indication of an imperfection, and (3)

Identification of tubes plugged."

In October 1990, with the plant in Mode 6 Refueling for the fourtl-refueling outage, the fifth plant Stec.1 Generator (S/G) Eddy Current Inservice Inspection was performed, S/G's

'A' and

'D' were inspected. The inspection was performed by Westinghouse Nuclear Services Division (NSD) and their formal results are detailed in the Eddy Current Examination (ECE) which is submitted with this Special Report.

Although the Westinghouse NSD ECE provides details on the inspection, the results are summarized below and are numbered to correspond with the information requested by T/S 4.4.5.5.b:

(1) Number / Extent of Ir.;pected Tubes (a)

Inspection Summary:

S/G

'A' S/G

'D' Inspected full Length from II/L 5129 5127 Inspected through U bend from 11/L 486 487 Inspected to Top Support from C/L 486 487 RPC Inspected TSil 410" thru TSH -4" 223 0

RPC Inspected TSH +5" thru TSit -4" 0

402 8XI Inspected through U bend 0

16

O e

g Page 2 Special Report 90 04 I

One hundred percent of the unplugged tubes or five thousand six hundred fifteen (5615) tubes were tested full length using the bobbin coil technique. The technique utilized frequencies of 630, 300, 150, and 30 kilohertz. Also, in Steam Generator

'A', 223 tubes were examined with a 0.580 motorized rotating pancake coil (HRPC) probe in the hot leg tube sheet region. All tubes examined with the MRPC probe in Steam Generator

'A' had no detectable discontinuities.

There were four (4) tubes plugged in Steam Cencrator

'A' for anti vibration bar indications above 40 percent through wall depth. Union Elcetcic elected to plug two (2) additional tubes with 38% indications.

(b) Steam Generator 'D*:

One hundred percent of the unplugged tubes or five thousand six hundred fourteen (5614) tubes were tested full length using the bobbin coil technique. The technique utilized frequencies of 630, 300, 150, and 30 kilohertz. In Steam Generator

'D', 402 tubes were inspected with a 0.560 KRPC probe at various intersections. No discontinuities were detected.

Sixteen (16) tubes were plugged in Steam Generator

'D'.

Thirteen (13) tubes were plugged when anti vibration bar indications exceeded 40 percent. Three (3) tubes were plugged with indications of 38 and 39 percent.

Additional testing was performed on these tubes using a (8X1) probe to determine if the tube wall loss at the AVB was one sided or two sided. The results of the testing showed only one sided wear on all sixteen (16) tubes.

(2) Location / Percent of Wall-Thickness Penetration for Each Indication of Imperfection See Tables 1 and 2

Page 3 Special Report 90 04 (3)

Identification of Tubes Plugged from the Fif th Inservice Inspection Stemn Generator

'A' Steam Generator

'D' Row Col t

Row Col 32 10 51 36 15 42 40 17 46 37 17 43 53 33 38 41 21 46 54 36 65 47 28 45 46 37 38 45 33 42 39 45 42 47 35 42 45 37 44 47 38 39 47 41 38 45 44 41 42 65 40 52 74 44 48 82 46 49 85 55 50 85 55 35 110 38 (4)

Plugged Tube Sumnary S/G

'A' S/G 'D' Tubes Plugged This Outage 6

16 Tubes Previously Plugged 11 12 Total Tubes Plugged 17 28

Page 4 Special Report 90 04

}it'Y - TABI,ES 1 and 2 AV1, 2, 3, 4, 5, 6 - Anti-Vibration Bars 0211. 0711, 07 C, e tc. - Tube Support Plate Numbers / Cold Leg (C), llot leg (11)

BLC - Bulge DNG - Ding DNT - Dent DSI Distorted Support Signal w/ Indication FBC - Flow Baffle Cold FBil Flow Baffle llot INF - Indication Not Found INR - Indication Not Reportable MBM Manufacturer's Burnish Mark NTE No Tube Expansion ONE - 8x1 Test - One Sided Tube Wear PID Positive Identification PLP Vossible Loose Part PTP l'reventive Tube Plug PVN Permeability Variation TEC Tube End Cold TSC Tubesheet Cold TSil Tubesheet llot UD1 Unfefined Indication 4

SPECIAL REPORT 90 04 TABLE 1 IUBE IMPERFECTIONS - STEAM CENEP).TQ)t

'A' Indication

(% of Wall Inch (+)

p_o} uren Thinninel Led 2D ftPaJoeat 1on Row q

9 3

INR 01C 2.36 32 10 INR AV3 0.0 32 10 51 AV5 0.0 32 10 PID AV5 0.0 32 11 16 AV2 0.0 32 11 18 AV5 0.0 33 11 27 AV2 0.0 32 12 19 AV3 0.0 39 16 25 AV4 0.0 35 17 19 AV4 0.0 40 17 38 AV2 0.0 40 17 46 AV3 0.0 40 17 PID AV3 0.0 40 17 23 AVS 0.0 40 17 15 AV6 0.0 39 18 18 AV3 0.0 39 18 17 AV4 0.0 39 18 16 AV6 0,0 41 18 16 AV2 0.0 41 18 24 AV4 0.0 35 20 16 AV3 0.0 29 21 INR AV2 0.0 42 21 INR TSC 7.9 32 22 INR AV2 0.0 27 23 INR Olc 35.3 36 23 21 AV4 0,0 27 25 Il4R 06C 35.6 27 26 INR 020 17.0 27 26 INR FBC 8.2 42 26 INR 0 311 14.4 42 26 INR 02C 25.4 Page 1 of 7

=,.

i i

SPECIAL REPORT 90-04 TABLE 1 (continued)

TUBE IMPERFECTIONS - STEAM GENEPATOR

'A' Indication

(% of Vall Inch (+)

Row Column Thinninr2 Location from Location 43 28 INR 02C 13.6 46 29 19 AV4

,.0 40 32 INR TSC 6.1 53 33 38 AV5 0.0 53 33 PID AV5 0.0 53 33 18 AV6 0.0 39 34 17 AV3 0.0 39 34 30 AV4 0.0 52 34 22 AV4 0.0 52 34 26 AV5 0.0 52 34 15 AV6 0.0 53 34 22 AV6 0.0 53 36 la AV6 0.0 54 36 DNT 07H 0.0 54 36 31 AV3 0.0 54 36 65 AV4 0.0 54 36 PID AV4 0,0 54 36 27 AV6 0.0 23

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INR 05H 5.1 46 s7 38 AV3 0.0 46 37 PID AV3 0.0 46 37 19 AV4 0.0 46 37 18 AV5 0.0 27 39 INR Olc 34.3 42 40 15 AV3 0.0 42 40 18 AV4 0.0 27 41 INR 05H 13.7 39 41 16 AV4 0.0 19 42 INR FBC 12.6 j.

35 44 INR-05C 4.9 39-45 18 AV1 0.0 39 45 42 AV2 0.0 39 45 FID AV2 0.0 Pagt. 2 of 7

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h SPECIAL REPORT 90-04 TABLE 1 (continued)

I.@E IMPERFECTIONS - STEAM OENEf1TRR

'A' Indication

(% of Wall Inch (+)

ggy Column Thinnitud Location from Locat19.0 39 45 31 AV3 0.0 35 45

9. 5 AV4 0.0 39 45 23 AV5 0.0 39 45 41 AV6 0.0 39 45

?ID AV6 0.0 36 46

M 04C 7.8 46 46 AV2 0.0 46 Af 17 AV3 0.0 35 47 20 AV2 0.0 35 47 23 AV4 0.0 42 47 21 AV3 0.0 46 47 25 AV3 0.0 26 48 16 AV5 0.0 46 48 20 AV3 0.0 46 48 26 AV4 0.0 49 48 26 06C 3.8 21 49 INR OSC 27.9 40 49 INR 03C 2,1 44 51 INR 0 711 7.5 5

52 INR 0 211 29.2 9

53 INR 01C 29.5 47 53 16 AV2 0.0 47 53 17 AV3 0.0 47 53 17 AV4 0.0 49 53 INR 0 211 7.0 36 55 INR OSC 18.5 47 55 17 4V2 0.0 48 55 INR 0 211 11.9 48 55 INR 0 211 14.4 55 56 INR 03C 3.4 28 57 INR 0 611 19.5 45 57 INR 03H 34.2 45 57 INR 0 311 39.2 47 57 22 AV4 0.0 49 57 INR AV3 19.0 Page 3 of 7

_. ~ _

4 SPECIAL REPORT 90-04 TABLE 1 (continued)

Tl[BE IMEERFECTIONS - STEAM GENERATOR

'A' Indication

(% of Wall Inch _(4)

Row Column Th'nninn) location from locatioD 54 57 INR O1H 20.6 55 58 INR 04H 18.$

51 59 26 AV2 0.0 51 59 28 AV3 0.0 51 59 34 AV4 0.0 30 60 INR TSH 16.3 48 60 INF 010 0.0 54 60 33 AV3 0.0 54 60

-33 AV5 0.0 54 60 18 AV6 0.0 54 60 INR 030 37.9 6

61 INR 03C 20,1 41 61 23 AV4 0.0 47 61 INR 02H 15.2 51 61 24 AV1 0.0 51 61 21 AV2 0.0 51 61 23 AV3-0.0 51 61 20 AV4 0.9 L

51 61 19 AV6 0.0 51 61 INR 04C 36.3 56 61 INR TSil 15.8 40 62 INR 06H 27.6 37 63 ILR O1H 13.5 37 63 IUR O1H 16.3 53 64 INR O1H 34.6 l-53 64 20 AV6 0.0 26 65 INR 04C 3.0 26 65 INR 040 6.4 26 65 INR 04C 13.0 l

26 65 INR 03C 39.5 44 65 INR TSH 8.4 44 65 INR 04C 6.1 46 65 15 AV2 0.0 46 65 22 AV4 0.0 46 65 19 AV5 0.0 30 66 INR AV6 18 Page 4 of 7

SPECIAL REPORT 90-04 TABLE 1 (continued)

TUBE IMPERFECTIONS - STFAM CENER/ TOP

'A' Indication

(% of Wall Inch (+)

Row Column Thinninr.)

Location from Location 46 67 17 AV4 0.0 44 68 INR 07H 22.6 32 70 INR 0 111 8.3 33 79 INR O1H 24.0 46 79 DNG 07H 20.9 27 80 INR 07H 37.4 31 80 INR AV5 6,0 38 80 INR 02H 17.7 49 80 INR FBH 10.9 38 83 INR TSH 2.7 43 83 INR TSH 11.7 46 83 18 AV3 0.0 28 84 INR 03C 36.1 28 84 INR 02C 9.9 39 84 18 AV4 0.0 39 84 18 AVS 0.0 55 84 INR 02C 34.8 50 85 INR 0411 35.6 50 85 INR 05H 4,4 50 85 INR 05H 37.3 53 85 INR 04C 17.2 39 86 18 AV4 0.0 41 86 21 AV4 0.0 50 86 INR 03C 16.1 53 87 INR O1H 27,4 53 87 INR O1H 29.4 46 88 23 AV2 0.0 46 88 26 AV3 0.0 46 88 24 AV4 0.0 46 88 25 AVS 0.0 46 38 16 AV6 0.0 53 88 INR O1H 37.1 40 89 INR 02C 25.2 Page 5 of 7

SPECIAL REPORT 90-04 TABLE 1 (continued)

TUBE IMPERFECTIONd - STEAM CENERATOR

'A' Indication

(% of Wall Inch (+)

Row Column Thinninn)

Location from Location

-46 90 15 AV2 0.0 46 90 17 AV3 0.0 46 90 32 AV4 0.0 46 90 17 AV6 0.0 15 91 INR 03H 15.7 15 91 INR 03H 21.0 45 91 INR 03H 32.2 39 92 19 AV4 0.0 37 93 INR 06C 0.0 49 93 INR 04C 15.9 33 94 INR O1H 37.9 42 94 18 AV5 0.0 45 94 INR AV6 10.0 49 94 INR AVS t 5 26 95 INR AV1 2.2 37 95 INR 06H 29.1 44 95 INR O1H 9.3 33 96 INR 03C 36.8 40 96 INR 02C 9.2 40 96 INR 02C 7.9 42 96-21 AV3 0.0 46.

96 16 AV2 0.0 46 96 24 AV5 0.0 33 97 INR 05H 32.2 i

36 97 INR OSC 7.4

(

42 97 15 AV2 0.0 l

42 97 18 AV5 0.0 44 97 INR 03C 23.1 42 98 INR 03C 9.5 28 99 INR 07H 7.3 l

l 33 100 INR sH 6.5 37 100 INR 03K 23.3 39 100 19 AVS 0.0 42 100 INR 03C 24.0 Page 6 of 7

4 SPECIAL REPORT 90 04 TABLE 1 (continued)

TUBE IMPERFECTIONS - STEAM CENERATOR

'A' Indication

(% of Vall Inch (+)

Egg Column Thinnine)

Location frotn Location 44 100 INR O1H 12.2 42 101 INR TSH 9.3 44 102 INR 0 611 11.2 37 103 INR 03C 2.7 41 103 INR 06C 26.7 42 103 19 AV6 0.0 41 104 INR 06H 36.3 28 110 INR TSl!

14.2 28 110 INR 06H 16,9 28 111 INR AV1 3.9 32 111 INR 0 111 6.3 32 111 INR 0 111 9.8 32 111 INR O1H 12.3

'33 111 18 Av5 0.0 32 112 17 AV6 0.0 29 114 17 AV1 0.0 26 116

!NR 03C 21.2 i

Page 7 of 7

SPECIAL REPORT 90-04 TABLE 2 TUBE IMPERFECTIONS - STEAM GENERATOR

'D' Indication

(% of Wall Inch (+)

Row Coluttn Tk.inninn) location from Location 13 5

19 O1H 3.7 29 9

24 AV2 0.0 29 9

22 AV5 0.0 31 10 25 AV2 0.0 33 11 32 AV4 0.0 31 12 24 AV2 0.0 34 13 18 AV4 0.0 13 14 INR 0 611 16.0 25 14 INR 02H 38.4 36 15 15 AV1 0.0 36 15 42 AV4 0.0 36 15 PID AV4 0.0 36 15 ONE AV4 0.0 36 15 18 AV5 0.0 37 15 INR FBil 9.7 37 15 35 AV3 0.0 35 17 19 AV3 0.0 37 17 43 AV3 0.0 37 17 PID AV3 0.0 37 17 ONE AV3 0.0 37 17 16 AV6 0.0 39 17 29 AV3 0.0 39 17 29 AV4 0.0 41 19 INR 0 211 23.1 41 19 INR 0 211 33.1 41 19 INR 0 311 2.7 41 21 41 AV4 0.0 41 21 PID AV4 0.0 41 21 ONE AV4 0.0 41 21 46 AV5 0.0 41 21 PID AV5 0.0 41 21 ONE AV5 0.0 40 22 INR 0 311 16.3 Page 1 of 9

SPECIAL REPORT 90-04 TABLE 2 (continued)

TUBE IEEERFECTIONS - STEAM GENERATOR

'D' Indication

(% of Wall Inch (+)

Row Column Thinninni Lpention from 1.ocation 1

23 INR 06H 33.7 24 23 DNG TSH 13.3 28 23 INR AV6 3.3 40 23 33 AVS 0.0 41 23 INR 05H 21.5 41 23 28 AV3 0.0 41 23 19 AV4 0.0 40 24 19 AV3 0.0 40 24 22 AV4 0.0 40 24 17 AV5 0.0 43 24 18 AV3 0.0 43 24 28 AV4 0.0 41 25 INR 03H 32.7 43 25 24 AV4 0.0 43 25 29 AV5 0.0 46 25 21 AVS 0.0 48 25 34 AV4 0.0 48 25 19 AV6 0.0 41 26 INR FBH 7,8 19 27 INR O1H 29.0 47 27 26 AV3 0.0 47 27 32 AV5 0.0 44 28 18 AV2 0.0 44 28 28 AV3 0.0 47 28 30 AV2 0.0 47 78 24 AV3 0.0 47 28 45 AV4 0.0 47 28 PID AV4 0.0 47 28 ONE AV4 0.0 47 28 30 AVS 0.0 49 28 INR OSC 27.6 41 29 19 AV4 0.0 43 31 INR 05H 6.9 45 33 27 AV2 0.0 45 33 26 AV3 0.0 Page 2 of 9 l

l

SPECIAL REPORT 90-04 TABLE 2 (continued)

TUBE IMPERFECTIONS - STEAM GENERATOR

'D' Indication

(% of Wall inch (4) b Column Thinning).

Iscation from Location 45 33 24 AV4 0.0 45 33 42 AV5 0.0 45 33 PID AV5 0.0 45 33 ONE AV5 0.0 47 33 19 AV2 0.0 47 33 28 AV3 0.0 47 33 29 AVS 0.0 47 34 30 AV4 0.0 47 34 21 AV5 0.0 47 35 19 AV1 0.0 47 35 27 AV2 0.0 47 35 32 AV3 0.0 47 35 42 AV4 0.0 47 35 PID AV4 0.0 47 35 ONE AV4 0.0 47 35 41 AVS 0.0 47 35 PID AV5 0.0 47 35 ONE AV5 0.0 47 35 16 AV6 0.0 50 35 DNT 0 711 0.7 53 35 INR 0 411 22.7 13 36 INR 02H 36.8 39 36 INR 03H 33.8 47 36 16 AV4 0.0 45 37 16 AV1 0.0 45 37 16 AV2 0.0 45 37 26 AVL 0.0 45 37 39 AV4 0.0 45 37 44 AV5 0.0 45 37 PID AV5 0.0 45 37 ONE AV5 0.0 47 38 16 AV2 0.0 47 38 19 AV3 0.0 47 38 PID AV3 0.0 47 38 39 AV4 0.0 47 38 ONE AV4 0.0 47 38 18 AV5 0.0 46 39 16 AV3 0.0 Page 3 of 9

SPECIAL REPORT 90-04 TABLE 2 (continued)

TUBE IMPERFECTIONS - STEAM CENERATOR

'D' Indication

(% of Wall Inch (+)

Rog Column Thinning) 1,ocation from 1.ogftion 35 40 INR FBit 10.1 35 40 INR 0 411 24.3 41 40 16 AVS 0.0 50 40 INR 0 211 1.7 27 41 INR 03H 18.9 27 41 INR 03H 25.3 47 41 27 AV3 0.0 47 41 38 AV4 0.0 47 41 ONE AV4 0.0 47 41 PID AV4 0.0 47 41 19 AV5 0.0 48 42 24 AV4 0.0 37 43 INR 02C 31.7 47 43 27 AV4 0.0 47 43 17 A'v5 0.0 17 44 INR 0411 28.5 28 44 INR 04H 19.8 28 44 INR 05H 28.5 37 44 16 AV2 0.0 45 44 41 AV3 0.0 45 44 PID AV3 0.0 45 44 ONE AV3 0.0 45 44 26 AV4 0.0 45 44 21 AV5 0.0 45 44 20 AV6 0.0 47 44 17 AV3 0.0 47 44 25 AV4 0.0 47 44 26 AV5 0.0 3

45 20 07H 11.8 51 47 27 AV2 0.0 51 47 19 AV4 0.0 43 49 INR 02H 4.0 43 49 INR 0 211 17.3 43 49 INR 02H 19.7 43 49 INR 06C 10.2 46 49 INR 03C 39.3 47 49 16 AV4 0.0 47 49 15 AV5 0.0 Page 4 of 9

e e-SPECIAL REPORT 90-04 TABLE 2 (continued)

TUBE IMPERFECTIONS - STEAM GENERATOR

'D' Indication

(% of Vall Inch (+)

B.og Column Thinninr3 Location from Location 36 50 INR 03H 23,8 43 50 INR FBC 14.5 46 50 21 AV2 0.0 46 50 25 AV3 0.0 46 50 30 AV4 0.0 46 50 21 AVS 0.0 46 50 DNG 07C 0.0 47 50 18 AV4 0.0 47 50 18 AV5 0.0 25 52 INR OSC 18.7 9

53 INR AV1 INR 46 54 16 AV3 0.0 41 56 INR O1H 16.2 28 57 INR 06H 19.5 34 59 INR 01C 20.1 44 61 INR 04C 5.0 47 61 15 AV2 0.0 47 61 1G AV3 0.0 47 61 17 AV4 0.0 13 62 INR 07H 2.9 50 62 INR 04H 16.7 50 62 INR 04H 28.9 50 62 INR 02C 18.1 49 64 INR 02H 23.6 42 65 17 AV2 0.0 42 65 15 AV3 0.0 42 65 26 AV4 0,0 42 65 40 AV5 0.0 42 65-PID AVS 0.0 42 65 ONE AV5 0.0 52 65 34 AV2 0.0 52 65 25 AV3 0.0 52 65 30 AV4 0.0 52 65 18 AVS 0.0 Page 5 of 9

=

e.

SPECIAL RKPORT 90-04 TABLE 2 (continued)

TUBE IMPERFECTIONS - STEAM GENERATOR

'D' Indication

(% of Wall Inch (+)

Row Column Thinningl Location from LocatioD 52 66 32 AV2 0.0 52 66 25 AV3 0.0 52 66 26 AV4 0.0 45 68 INR FBC-4.6 52 68 27 AV2 0.0 52 68 30 AV3 0.0 52 68 21 AV4 0.0 52 68 29 AV5 0.0 53 69 INR 05H 3.0 17 71 INR TSH 6.1 17 71-INR O1H 8.1 30 71 INR 04H 32.6 43 71 INR 04H 32,6 43 71 INR 05H 1.8 45 71 INR AV1 2.9 17 72 INR TSH 6.4 17 72 INR O1H 8.4 37 72 20 AV4 0,0 52 73 17 AV4 0.0 40 74 INR AV5 020 52 74 22 AV1 0.0 52 74 30 AV2 0.0 52 74 44 AV3 0.0 52 74 PID AV3 0.0 52 74 ONE AV3 0.0 52 74 35 AV4 0.0 52 74 37 AV5 0.0 52 74 24 AV6 0.0 39 76 22 AV4 0.0 47 76 INR 03C 7.1 39 77 18 AV5 0.0 33 79 INR 04H 14.5 45 79 INR FBC 17.2 49 79 INR 02C 11.9 Page 6 of 9 i

L.:

SPECIAL REPORT 90-04 l

TABLE 2 (continued) l TUBE IMPERFECTIONS - STEAM CENERATOR

'D' Indication

(% of Wall Inch (e)

Row Column Thinninn)

Location from Location 33 80 INR 03H 12.2 51 80 16 AV5 0.0 33 82 INR Olc 12.0 33 82 INR 01C 4.7 46 82 DNG 06H 39.2 48 82 21 AV1 0.0 48 82 16 AV2 0.0 48 82 ONE AV2 0.0 48 82 38 AV3 0.0 48 82 46 AV4 0,0 48 82 PID AV4 0.0 48 82 19 AV5 0.0 48 82 25 AV6 0.0 46 83 19 AV2 0.0 46 83 19 AV3 0.0 46 83 21 AV4 0.0 48 83 INR Olc 31.2 50 83 19 AV2 0.0 50 83 26 AV4 0.0 47 84 DNG 07H 0.4 47 84 26 AV4 0.0 47 84 DNG 06C 36.7 49 84 29 AV3 0.0 49 84 31 AV4 0.0 49 84 32 AV5 0.0 49 85 48 AV2 0.0 49 85 PID A72 0.0 49 85 ONE AV2 0.0 49 85 29 AV3 0.0 49 85 55 AV4 0.0 s

49 85 FID AV4 0.0 49 85 ONE AV4 0.0 49 85 53 AVS 0.0 49 85 PID AV5 0.0 49 85 ONE AV5 0.0 49 85 15 AV6 0.0 50 85 43 AV2 0.0 50 85 PID AV2 0.0 50 85 ONE AV2 0.0 50 85 40 AV3 0.0 50 85 ONE AV3 0.0 Page 7 of 9 l

s e

e SPECIAL REPORT 90-04 TABLE 2 (continued)

TUBE IMPERFECTIONS - STEAM GENERATOR

'D' Indication

(% of Wall Inch (+)

Row Column Thinnine)

Lccation from Location 50 85 PID AV3 0.1 50 85 47 AV4 0.0 50 85 PID AV4 0.0 50 85 ONE AV4 0.0 50 85 55 AV5 0.0 50 85 PID AV5 0,0 50 85 ONE AV5 0.0 50 85 17 AV6 0.0 39 86 15 AV4 0.0 41 86 18 AV2 0.0 39 87 23 AV4 0.0 39 87 18 AV5 0.0 39 87 15 AV6 0.0 40 87 INR FBC 5.3 41 87 INR 01C 31.0 51 87 INR 02C 34.9 39 88 22 AV5 0.0 51 88 INR 01C 10.9 42 89 26 AV2 0.0 42 59 28 AV3 0.0 42 89 30 AV4 0.0 42 89 22 AV5 0.0 48' 89 21 AV2 0.0 48 89 30 AV3 0.0 l-48 89 16 AV4 0.0 49 90 27 AV2 0.0 49 90 26 AV4 0.0 i

l 49 90 18 AV5 0.0 27' 91 INR 04C 25.0 l

35 91 INR AV2 6.1 l

39 91 18 AV3 0.0 l

39 91 28 AV4 0.0 l

39 91 15 AV5 0.0 48 92 29 AV2 0.0 48 92 25 AV4 0.0 48 92 25 AV6 0.0 49 92 19 AV4 0.0 Page 8 of 9

• ,-.-+1 SPECIAL REPORT 90-04 TABLE 2 (continued)

TUBE IMPERFECTIONS - STEAM GENERATOR 'Q1 Indication (t of Wall Inch (+)

Epy

- Column Ibinnine) location from Location 4E 93 29 AV3 0.0 48 93 19 AV5 0.0 43 94 INR 03H 5.2 49 94 19 AV2 0.0 49 94 18 AV4 0.0 49 94 28 AVS 0.0 1

96 INR 06H 24.0 30 96 INR 04C 25.5-13 101 DNG TSC 5.7 36 101 16 AV3 0.0 36 101 23 Av5 0.0 30 103 INR 03H 37.5 40 104 INR 03H 14.3 40 104 INR AV4 5.2 36 106 29 AV4 0.0 35 11C PID AV4 0.0 35 110 38 AV4-0.0 35 110 ONE AV4 0.0 36 110 26 AV4 0.0 32 112 18 AV6 0.0 5

115 INR 02C 14.5 22 117 INR 04H 6.0 l

l 1

121 INR 07H 0.6 l-Page 9 of 9