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Submits SG Tube ISI Rept,Per TS 4.4.5.5.b.Attachment A,Table 1,provides Brief Synopsis of Results of SG Tube Insp
	ML20072C585
Person / Time
Site:	Millstone
Issue date:	08/11/1994
From:	Miller D; NORTHEAST NUCLEAR ENERGY CO.
To:	; NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
	MP-94-493, NUDOCS 9408170294
	Download: ML20072C585 (39)
	v • d • e

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1 Northeast Rope Ferry Rd. (Route 156). Waterford, CT 06385

//]jk NuclearEnergy nusione Nuclear Power station s

Northeast Nuclear Energy company P.O. Box 128 r

Waterford, CT 06385-0128 (203) 447-1791 Fax (203) 444-4277 The Northeast Utilities System Docket No. 50-423 Re: 10CFR50.36 L

August 11, 1994 MP-94-493 U.S. Nuclear Regulatory Commission Document Control Desk Washington, D. C. 20555 Millstone Nuclear Power Station, Unit No. 3 Steam Generator Tube inservice Inspection Report This special report is being submitted within 12 months following the completion of the fourth Inservice Eddy Current inspection (ECT) of the Millstone Unit No.3 Steam Generator (S/G) tubes pursuant to Technical Specification 4.4.5.5.b.

The end of cycle 4 steam generator tube inspection was completed on August 21, 1993, during the fourth refueling outage (RF04). A total of 8010 tubes or 35.6 percent of the total tubes in all generators were examined by full length bobbin coil inspection. This examination significantly exceeds that required by Technical i

Specification 4.4.5.2. Additionally, all tubes in Steam Generators. A and C, which were not examined during the second refueling outage (i.e., May 1989, RFO2),

j were examined during this inspection. This fulfills an EPRI Steam Generator Examination guideline which suggests inspecting 100% of the tubes in a given S/G over a five year period. Attachment A, Table 1, " Millstone 31993 ECT Summary",

provides a brief synopsis of the results of the steam generator tube inspection.

Additional information providing details of the inspection plan and ECT results are provided in Attachments B and C.

The inspections were performed in Steam Generators 'A' and 'C'. The initial inspection plan consisted of 3660 tubes in each steam generator. Evaluation of these results identified that the 'C' Steam Generator was a C-1 Classification and that steam generator 'A' was a C-2 Classification. The C-2 category resulted from the identification of "one or more tubes, but not more than 1% of the total tubes inspected" as defective. The required action was to inspect an additional '2S' sample (i.e.,12%) in S/G A. The 690 tube expansion identified no additional defective tubes and placed S/G A into a C-1 Category.

mmun. m 40s 70294 940011 PDR ADOCK 05000423 i\\

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The one tube which required plugging in the 'C' Steam Generator did not require the classification of that S/G in the C-2 Category. A review of previous ECT data for that tube (1989 RFO2) confirmed that neither of the two defects had progressed more than 10% throughwall after two complete cycles of operation.

Therefore, these defects are not included in the determination of the inspection category.

Attachment A, Table 2, "ECT Testing Performed During RF04,"

provides a summary of testing performed. In addition to the full length bobbin inspection, rotating probe tests were performed at 71 tube locations. This included 47 tubosheet locations potentially susceptible to Primary Water Stress Corrosion Cracking (PWSCC). The rotating probe test confirmed the absence of service induced tube degradation within the tube sheet, at the expansion transition, within the free span, and at the tube supports.

Eddy Current Testing identified flaws greater than or equal to the plugging limit in seven tubes (six in S/G 'A' and one in S/G 'C'). The plugging limit is defined in Technical Specifications as an imperfection depth of 40 percent nominal tube wall thickness. All seven tubes exhibited degradation attributed to Anti-Vibration Bar (AVB) wear. These tubes are identified in Attachment A, Table 3, " Tubes Plugged During RFO4," and were removed from service utilizing Westinghouse Alloy 690 Tapered Mechanical Plugs on August 21, 1993. Attachment A, Table 4 provides an historical listing of all tubes plugged on Millstone Unit 3.

During RF04, eight Westinghouse Inconel 600 mechanical plugs, determined to be susceptible to cracking, were repaired. The repair included the removal (by drilling) and replacement of the mechanical plugs from the A and C hot leg plenums. The actual locations are identified in Attachment A, Table 5, "S/G Tube Plug Repairs" All Plugs were replaced with Inconel 690 mechanical plugs. Similar repairs are scheduled for the three remaining Alloy 600 plugs in the B and D Steam Generators during RFOS.

I

4 One unexpected finding during the plug removal was that one of the eight tubes (S/G A, R50/C95) contained a 100% throughwall defect. The defect was at the 5th anti-vibration bar location. The defect apparently had grown from 43%

throughwall in May 1989. To prevent the tube from severing at the defect and contacting adjacent tubes, a stabilizer was inserted prior to replugging.

The licensee contact for this report is Larry Loomis, who may be reached at (203) 447-1791, Extension 5468.

Very truly yours, NORTIIEAST NUCLEAR EN GYC iPANY d

1 Donald B. Miller, Jr.

Vice President, Millstone Station DIBf/!el Enclosures Attachments A, B, C cc:

T. T. Martin, Region I Administrator P. D. Swetland, Senior Resident Inspector, Millstone Unit Nos.1,2, and 3 V. L. Rooney, NRC Project Manager, Millstone Unit 3

1 ATTACHMENT A TABLE OF CONTENTS Table 1 - Millstone 31993 ECT Summary Table 2 - Testing Performed During RFO4 Table 3 - Tubes Plugged During RFO4 Table 4 -Total Tubes Plugged To Date Table 5 - Plug Repairs l

l I

Table 1 MILLSTONE 31993 ECT

SUMMARY

DESCRIPTION S/G A S/G C TOTAL

Number of Tubes 5626 5626 22504 Number of Tubes Inspected 4350 3660 8010 Tubes with maximum flaw > 40 %

6 1

7 Tubes with Flaws > 20% but <40%

40 14 54 Tubes Plugged as a Result of this inspection 6

1 7

All four Steam Generators Table 2-TESTING PERFORMED DURING RFO4 Test Area Examined S/G A S/G A S/G C S/G C Total Method Hot Cold Hot Cold Leg Leg Leg Leg Bobbin Full length 4350 3660 8010 RPC Within Tubesheet 15 0

0 0

15 RPC Expansion Transition 10 0

24 0

34 RPC Free Span 7

10 2

0 19 RPC Tube Supports 2

1 0

0 3

Table 3-TUBES PLUGGED DURING RFO4 ROW COLUMN S/G ROW COLUMN S/G 40 63 A

53 90 A

42 79 A

54 52 A

48 98 A

50 59 A

50 92 C

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Table 4-TOTAL TUBES PLUGGED TO DATE SG#

Row Col

% Throughwall Location l

i Fabrication A

12 100

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40 17 C

36 94 C

56

'73 Preservice A

25 61 73 %

02C + 1.1" June 1985 A

29 60 78 %

02C + 32.2 B

32 71 Bulge _

TSH C

1 1

69 %

CL Tangent D

1 122 78 %

CL Tangent Nov 1987-RFO1 A

50 94 34%

AVS D

48 98 32%

AV4 May 1989 - RFO2 A

1 122 36%

HL Tangent A

48 97 51 %

AV5 i

A 50 28 43 %

AV3 A

50 95 45 %

AV5 Feb 1991 - RFO3 D

43 42 41 %

AV5 D

43 103 41 ( 42 %

AV4,AV3 D

53 86 53 %, 43 %, 48 %

AV3,AV4,AV5 D

53 88 41 %

AV5 D

53 90 47 %, 40 %

AV4,AV5 Aug 1993 - RFO4 A

40 63 61 %

AV2 l

A 42 79 46%

AV4 A

48 98 53 %, 44 %

AV3,AV5 A

50 59 44 %

AV4 A

53 90 54 %, 40 %, 41 %

AV2,AV4,AV5 A

54 52 50 %, 56%, 43 %

AV2,AV3,AV6 C

50 92 44 %, 45 %

AV3,AV4 Table 5-Plug Repairs 1

S/G ROW COLUMN SLQ ROW CO_LMMN A

1 122' A

50 28 A

_ 25 61 A

50 94 A

29 60 A

50 95 A

48 97 C

1 1

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a ATTACHMENT B Table Of Contents Figures Description 1

SG-A Bobbin Inspection Program 2

S/G-A Hot Leg RPC Program 3

S/G-A Cold Leg RPC Program 4

S/G-A Tubes With Indications-AVB Region 5

S/G A Tubes With Indications-Hot Leg 6

S/G A Tubes With indications-Cold Leg 7

S/G-A Plugged RFO4 8

S/G-A Tube Repair History Map 9

SG-C Bobbin Inspection Program 10 S/G-C Hot Leg RPC Program 11 S/G-C Tubes With Indications-AVB Region 12 S/G C Tubes With Indications-Hot Leg 13 S/G C Tubes With Indications-Cold Leg 14 S/G-C Plugged RFO4 15 S/G-A Tube Repair History Map

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ATTACHMENT C l

TABLE A - SG-A -AVB PERCENT THRU WALL INDICATIONS TABLE B -S/G A HISTORICAL ECT RESULTS FOR AVB FLAWS 120% TW IN 1993 TABLE C - S/G A HOT LEG PERCENT THRU WALL INDICATIONS TABLE D - S/G A COLD LEG PERCENT THRU WALL INDICATIONS TABLE E - SG-C -AVB PERCENT THRU WALL INDICATIONS TABLE F -S/G C HISTORICAL ECT RESULTS FOR AVB FLAWS A 20% TW IN 1993 TABLE G - S/G C HOT LEG PERCENT THRU WALL INDICATIONS

\\

TABLE H - S/G C COLD LEG PERCENT THRU WALL 1

INDICATIONS l

l l

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j TABLE A - SG-A -AVB PERCENT THRU WALL INDICATIONS WillstoneUnit3 NEW *A/F INSPECTION: Aug 93 2.Sep.93 8:49 i

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.63 49 l l

t i

l

! 31 77 1EC itM 560 E8 14 Av2

.00

.00 W2

.50 49 l l

[ 35

'? TEC TEN $60 E8 15 Av3

.00

.00 W2

. $4 49 (RISULT OF 01SCatPANCY RESOLUTION l

IRDA COL C(8 CIE PRolf Iwo LOC INCH 1 INCH 2 CMAN VOLTS DEC1AP(l CouWENTS I

PAGE 3

TU8ES 44

=... + - :...:.....:.... u

.. =... :.............u..u....

=

1 TABLE A - SG.A -AVB PERCENT THRU WALL INDICATIONS.

i (CON'T)

Willstone Unit 3 NEU.Apr INSPl(110N:

Aug.93 2.Sep.93 8:49 l ROM COL Cts Ctf PRost IND LOC ]NCH1 1CH2 CMAN VOLTS DEOTAPEl-COuuf MT S l

........................................................................................................................+

l l

l l 42 77 TEC TEM 560.E8 11 AV4

. 19

.00 M2

,46 85 IRESULT OF D]SCR(PANCY RESOLUTION l

1 I

l l

l 40 78 TEC TEH 56018 27 Av2

.00

.00 W2 1.33 51 l l

l 40 78 TIC TEM 560.E8 27 AV3

.00

.00 u2 1.32 51 l l

l 40 78 TEC TEM 560 E8 15 Av6

.00

.00 E2

.57 51 l l

1 l

l

\\ 42 79 TEC TEH 56018 33 AV2

.00

.00 M2 1.87 51 l RESULT OF DISCREPANCY R[SQLUTION l

l 42 79 TEC TEM 560 18 32 Av3

.00

.00 M2 1.80 51 l RESULT OF DISCREPANCY RISOLUTION l

l 42 79 TfC TEM 560.tB 46 AV4

.00

.00 u?

3.72 51 l RESULT OF DISCREPANCY RESOLUTION l

.........*.]RITEST FOR POSITIVE I.D.

l l 42 79.................... -.......

l 42 79 TEC TEM 560 E8 34 AV5

.00

.00 M2 2.C7 51 l RESULT OF O!SCRIPANCY RESOLUT!ON l

l 42 79 TEC TfH 560.E8 16 AV6

.00

.00 M2

.63 51 l RESULT OF 0]SCREPANCY RESOLUTION l

l l

1 l 53 41 TEC TEM $60.E8 18 AV3

.09

.00 M2

.72 53 l l

1 l

1 l 50 82 f tC TEH 560 f 8 13 AV3

.06

.00 u2 49 53 l RESULT OF DISCREPANCY RESOLUTION l

l I

i l 50 86 f(C TEM 560.tB 18 AV2

. 15

.00 v2

.81 87 l RESULT OF DISCR(PANCY RESQLUTION l

l l

I i 13 86 f tC T!H 560.!8 32 AV2

.03

.00 u2 1.84 57 l l

l 13 86 1EC TEM 560 18 36 AV3

.03

.00 M2 2.27 57 l l

l 13 46 TEC TEM 550 18 29 Ave

.03

.00 u2 1.55 57 l l

l l

I l 43 47 ftC TEM 560.E8 20 Av2

.00

.00 M2

.93 87 l l

l 43 87 fic TEM 560 E8 17 Av4

. 10

.00 u?

.76 87 lRfSULT OF DISCREPANCY RESOLUTION l

l 43 87 TIC TfH 560 EB 20 AVS

. 32

.00 u2

.97 87 l RESULT OF DISCREPANCY RESQLUTION l

l 1

I

[ 13 47 TEC TtH 560 E8 19 Av2

.00

.00 u?

.84 57 (RISULT OF DISCREPANCY RESOLUTION l

l l

l 37 9.) TEC ltM 560.!B 17 AV3

.00

.00 M2 72 59 l l

l 1

i l 53

.(C TEM 560 EB 26 AV2

.00

.00 u2 1.35 59 l l

l 50 90 TEC TEM 560 18 26 AV3

.00

.00 W2 1.32 59 l l

l 53 90 TEC Tf M 560.EB 16 Av5

.00

.00 M2

.67 59 l RESULT OF DISCREPANCY RESOLUTION l

l 1

l l 53 90 TEC TEM 56010 15 Av1

.00

.00 u?

.C3 59 l l

l 13 50 1tC TEM 560.f8 31 Av2

.00

.00 M2 1.75 59 l l

l 23 90 1EC TEM 560.I8 54 Av3

.00

.00 ut 9.97 93 59 { RESULT OF DISCRIPANCY RESOLUTION l

...lRittST FOR POS!T!vt 1.D.

]

l E3 90....................

l

3 90 TEC TEM 560.fB 40 AV4

.00

.00 u2 2.92 59 lRISUL1 0F DISCREPAN0Y RE50LUT10N j

l 33 90...........................

....] RETEST FOR POSIT!vt 1.0.

l l 13 90 TEC TEH 560.f8 41 AVS

.00

.00 M2 3.07 59 l RESULT OF DISCREPANCY RESOLUTION l

)

......lRE1EST FOR POSITIVE 1.D.

] a3 90..........................

j l

l 1

l 37 91 TEC TEM 560 18 18 Av3

.00

.00 u2.

74 59 l RESULT OF DISCREPANCY RESOLUTION l

l 37, 91 TEC TEM 560 te 15 Av4

.00

.00 M2

.63 59 l RESULT OF DISCREPANCY RESOLUT10N l

l 37 91 TIC TEM 560.E8 22 Av5

.00

.00 M2 1.05 59 lRISULT OF DISCREPANCY RESOLUTION l

.....+

lROA COL CE8 CEf PROBE 1ND LOC INCH 1

]WM2 CHAN VOLTS DEO TAPEl CouutNTS I

...............................................................................................+

PAst 4

TVEES 56

- ~....

. :....a...w._,.

. w;-m. ~..u...

c.

-.x 2.:

TABLE A - SG-A -AVB PERCENT THRU WALL INDICATIONS (CON'T)

Ellistone Unit 3 afEU.A/F INSPECTION:

Aug.93 2 8ep.93 8:49 140= Cet CE8 CEr Pn08f t o toc twCM1 twCH2 CHan votTS DEO TAPEt CouutNTs l

l 3F 91 TEC TEM $60 18 14 Av8

. 16

.00 M2

.56 59 l RESULT OF O!SCREPANCY RESOLUT10N l

1 1

I l 50 91 TEC TEM 560 !B 25 AV2

.00

.00 U2 1.24 59 l l

l 50 91 TEC TEH 560 E8 24 AV3

.00

.00 u2 1.18 59 l l

1 1

I l 42 93 TEC TEM 560 E8 15 Av3

.00

.00 M2

.58 61 l l

l 42 93 TEC TEM 56018 18 AV4

.00

.00 u2

.77 61 l l

l 42 93 TEC TEM 560 E8 21 Av5

.00

.00 u2

.97 61 l RESULT OF DISCRIPANCY RESOLUTION l

l l

l

} 42 94 TEC TEH 560 E8 26 Av3

.00

.00 u2 1.26 63 l l

l 42 98 TEC TEM 560 E8 25 AV4

.00

.00 u2 1.15 63 [

]

I I

I l 43 98 TEC TIM 560 18 14 AV4

.00

.00 U2

.71 63 l RESULT OF D!$CRIPANCY RESOLUTION l

l 43 98 TEC TEH 560 E8 13 AVS

.00

.00 u2 49 63 (RESULT OF DISCRIPAN~,Y RESOLUTION l

1 1

I l 44 98 TEC TEM 560 E8 23 Av2

.00 00 W2 1.04 63 l l

l t

I l 45 98 TEC 1EM 560 E8 14 Ave

.09

.00 W2

.61 89 { RESULT OF 015tREPANCY RESOLUTION

-l 8

l l

l 48 98 TEC TEH 560 E8 53 AV3

.00

.00 Ut 7.74 93 63 l RESULT OF O!SCREPANCY RESOLUTION

]

.... l RET EST FOR POS1T!vt I.D.

l l 46

$8....

l 48 94 TEC TEM 560 E8 25 Av4

.00 00 M2 1.14 63 l RESULT OF O!$CREPANCY RESOLUTION

,l l 48 98 TEC TEH 560 E8 44 Av5

.00

.00 U2 3.35 631 RESULT OF O!SCREPANOY RESOLUT10N l

..l RETEST r0R POSITivt 1.0.

l l 4s 9:........................

l 48 94 TEC TEM 560 f8 35 Av6

.00

.00 U2 2.10 63 l RESULT OF DISCREPANCY RE50LUT10N l

1 1

I l 42 99 TEC TfH 560 E8 29 Av3

.00 00 u2 1.56 65 ]

l l 42 99 TEC TEM 560-E8 29 Av4

.00 00 U2 1.52 65 l l

l l

l l 43 99 TFC TEM 560 f 8 15 AV4

.00 00 u2

.59 65 l l

I I

i l 45 99 TEC TEH 560 E8 14 AV4

. 19

.00 u2

.59 89 l RESULT OF DISCREPANCY R!SQL,UTION l

j i

l 1

] 45 99 TEC TEH 560+!B 19 AVS

.00

.00 U2

.80 65 l l

f 1

1 l

l 47 99 TEC TEM 560 E8 16 Av6

.00

.00 u2

.64 65 1 l

1 1

I l 37 100 IfC TEH 560 !8 15 Av3

.00 00 M2

.60 65 l l

l 1

I l 42 101 TEC TEH 560 f 8 19 AV2

.00 00 u?

.81 65 l l

l 42 101 1EC TEM 560 18 23 Ave

.00

.00 v2 1.06 65 l l

l 42 101 TEC TEH 560-E8 22 Av5

.00

.00 U2 1.01 65 1 l

l l

l-l 43 101 TEC TEM 560.E8 if AV4

. 03 00 u2

.76 89 l l

l 43 101 TEC TEM 560 E8 16 Av5

.16 00 u2

.69 89 (RESULT OF DISCREPANCY RESOLUTION l

1 1

1

02 TEC TfM 560 18 21 AV4

. 16 00 M2 1.00 49 l l

l 41 1

1 l

l lR"M COL CES CEt PROBE INO LOC INCH 1 Iw H2 CHAN VOLTS QE0 TAPE l COW!NT S l

PACE 5

TV8IS 73

+ u s -...- :..

. :..= : a.,u.. a: w.. w.r....v....

TABLE A - SG-A -AVB PERCENT THRU WALL INDICATIONS

~

(CON'T)

/

atallstone Unit 3 N(U.AJF IwSPECTION: Aug 93 2.Sep.93 8:49 lRcm c0L cE8 Ctt PRoot two LOC swCHi IwCH2 chaw v0LTS otoTAPEI couutwTS l

l 42 102 T(C TEM 560.E8 18 AV3 00

.00 W2

.76 65 l

[

l 42 102 TEC TEM 560 ta 29 AV4 00

.00 W2 1.54 65 1 l

l 42 102 TEC TEH 560 E8 25 Av5

.00

.00 W2 1.17 65 ]

l l

l l 43 102 TEC TIM 56018 18 AV5 12 00 W2

.83 89 l I

l 1

l 41 105 TEC TEM 560 E8 13 AV3 00

.00 u2 48 67 [ RESULT OF 0350REPANCY RESOLU110N l

l l

1 l 37 106 TEC TEH 560 18 17 AV4

..28

.00 u2

.77 89 l RESULT OF O!SCREPANCT RESOLUTION l

l 37 106 TEC itH 560 f8 13 AV5 06

.00 W2

.53 89 l RESULT OF 01SCREPANCY RESOLUTION l

I i

I l 33 106 TEC ltH 560 E8 19 AV3 00 00 u2

.79 67 l l

l 38 106 TEC TEH 560 E8 18 Av4

.00

.00 u2 75 67 l l

1 l

l l 34 107 TEC TIM 560 E8 11 Av4

.00

.00 W2 45 69 [RESutt CF DISCREPANCY RESOLUTION l

1 l

l l Sa 1091EC TEM 560 E8 20 AV4

.21

.00 u2

.91 69 l l

l l

l

..22 00 W2

.82 69 (RESULT OF LEAD ANALYST REVIEW l

l 32 111 TEC TEM 560 E8 18 AVd l 32 111 1TC TEM 560 E8 16 Av5

.00

,00 u2

.68 69 [ RESULT OF LEAD Autv5T REVltw l

l i

l l 30 113 TEC TEM 560 E8 22 Av5

..24

.00 u2 1.05 71 (REsut1 0F 01SCREPAv.".Y RESOLUTION l

1 l

l l 25 115 Tf C TEM 56018 24 Av1

.00

.00 v2 1,24 71 l l

I 1

l l 27 115 TEC TEM 560 18 18 Av1

.28 00 F2

.82 71 l l

1 l

l 28 115 TEC 1EM 56018 30 Av1

.22 00 U2 1.69 71 l lRon COL CEB CEE PROBf ]NO LOC INCM1

]hCH2 CHAN VO(1$ O(G TAPEj COWEN15 l

PAGE 6

10TAL TUB!$

84 l

i l

l l

i i

i f

1 p-g p

w%

m g

4

---e

- + -

m-

TABLE B -S/G-A HISTORICAL ECT RESULTS FOR AVB FLAWS.;>_20%

TW IN 1993 Row Column Location Nov 87 May 89 Aug 93 30 9

AV5 NDD 8%

25 %

53 33 AV5 21 %

21 %

25 %

34 46 AVG NT NT 20 %

34 48 AV3 NT 27 %

22 %

40 49 AV4 NT NT 22 %

54 52 AV2 NT NT 50 %

AV3 NT NT 56%

AV4 NT NT 34 %

AV5 NT NT 37 %

AV6 NT NT 43 %

35 54 AV4 NT NT 25 %

50 54 AV2 NT NT 32%

AV3 NT NT 25 %

AV4 NT NT 36%

AV5 NT NT 20 %

42 57 AV4 NT 19 %

24 %

AV5 NT 17 %

31 %

37 59 AV4 NT NT 23 %

50 59 AV2 NT NT 28 %

34 60 AV2 NT NT 26 %

AV4 NT NT 27 %

50 60 AV2 NT NT 26%

AV4 NT NT 27 %

42 62 AV2 NT 18%

26 %

AV3 NT 19%

30 %

AV4 NT 23 %

38 %

AV5 NT 28 %

37 %

45 62 AV3 NT 16%

21 %

AV4 NT 20 %

28 %

AV5 NT 20 %

26%

AV6 NT 18%

24 %

4 o

TABLE B -S/G-A HISTORICAL ECT RESULTS FOR AVB FLAWS A 20%

TW IN 1993 (CON'T)

Row Column Location Nov 87 May 89 Aug 93 40 63 AV2 NT 40 %

61 %

AV3 NT 22 %

35 %

AV4 NT 18%

23 %

51 63 AV2 NT 29 %

30 %

50 64 AV2 NT NT 21 %

AV3 NT NT 20 %

AV5 NT NT 21 %

40 65 AV4 NT NDD 22 %

44 71 AV5 NT 13 %

22 %

34 73 AV5 NT 9%

21 %

40 78 AV2 NT NT 27 %

AV3 NT NT 27 %

42 79 AV2 NT 14%

33 %

AV3 NT 17 %

32 %

AV4 NT 27 %

46 %

AV5 NT 21 %

34 %

53 86 AV2 NDD 21 %

32 %

AV3 NDD 25 %

36%

AV4 NDD 24 %

29 %

43 87 AV2 NT 17 %

20 %

AV5 NT 21 %

20 %

50 90 AV2 NT 18%

26%

AV3 NT 21 %

26 %

53 90 AV2 NDD NDD 31 %

AV3 17 %

33 %

54 %

AV4 22 %

23 %

40 %

AV5 NDD 21 %

41 %

37 91 AV5 NT NT 22 %

50 91 AV2 NT 16%

25 %

AV3 NT 17 %

24 %

42 93 AV5 NT NDD 21 %

h TABLE B -S/G-A HISTORICAL F.CT RESULTS FOR AVB FLAWS _;>. 20%

TW IN 1993 (CON'T) l Row Column Location NOV 87 May 89 Aug 93 42 98 AV3 NT NT 26 %

AV4 NT NT 25 %

44 98 AV2 NT NT 23 %

48 98 AV3 24 %

35 %

53 %

AV4 NDD NDD 25 %

AV5 NDD 22 %

44 %

AV6 23 %

30 %

35 %

42 99 AV3 NT NT 29 %

AV4 NT NT 29 %

42 101-AV4 NT 17 %

23 %

AVS NT NDD 22%

41 102 AV4 NT 18%

21 %

42 102 AV4 NT 14 %

29 %

AV5 NT 10 %

25 %

34 109 AV4 NT 15 %

20 %

30 113 AV5 NDD NDD 22 %

26 115 AV1 NT 14 %

24 %

28 115 AV1 22%

24 %

30 %

1,.%

u as.m' t.:: emt.ss

...w,

, ;s.w.:., www* 1..L o %... no w. Z. i;.,. A.a so 4 4* d ry.it'NQ:..w: !W'.. pF." ".. /... ;,. '.: l'. N. :

{

1 6*.

., i

.a w

..s.., ~ aJ.

1 3..

... - + -. ~

...q.

. 4 NS TABl.E C JSIG A HOT LEG PERCENT THRU WAU alillstone Unit 3 eftU.A/F INSPECTION:

Aug.93 2.Sep.93 4:36

.....+...................+.......+........+........+...........+...+....+.................................................+

lRtw COL CE8 CEE PROSE INO LOC INCM1 INCH 2 CHAN VOLTS DEGTAPEl Cona#ENTS.

l

..............+.................................+....+......+...+......................................................,

I l

l l 25 21 TEC TEH $60.E8 11 03H 14.26

.00 1

.74 164 9 [RE$UI.T OF O!$CREPANCY RESOLUT]DN l

l l

l l 33 23 TEC TEM 560.EB 11 05H 15.00

.00 1

63 167 il l RESULT OF DISCREPANCY RESOLUTION l

l l

l l 33 49 TEC TEM SCO.E8 34 02H 13.47

~. 00 1

.34 138 31 lRESul.T OF LEAD ANALYST REV!Fw l

l l

l l 5 122 TEC TEM 560.E8 25 TSH

. 54

.00 1

99 153 73 [ RESULT OF L(AD ANAL.Y$T REVIEW l

l 5 122 TEC TEH 560 E8 3$ TSH

.94

.00 1

1.08 142 73 (RESULT OF LEAD ANALYST REVIEW l

l 5 122 TEC TEM $60.EB 27 TSH 1.73

.00 1

.77 151 73 jRESULT OF LEAD A MLYST REVIEW l

4.......................+......+........................... +.... +...................................................

lROA COL CES CEE PR06E IND LOC INCMI INCH 2 CHAN VOLTS DEG1 APE l COWW!NTS l

4...+.....

..+................+......+................................................

PALE 1

TOTA'. TU6ES 4

,.. ~..

a n.

...v.

.s. s

..-a...

...<v

...w.+.--..

'.../.f.

k, a..

. s

.- v.

..eas e.sc1 w s,2 :.. u...s w as

'a~~

.-s"*

'. >, ' -g.++....

c.....

....r

.a

[

TABLE D - S/G A COLD LEG PERCENT THRU WALL INDICATIONS

~

q.,f i

I as131 stone Onit 3 afEU.A/F INSPECTION:

Aug.93

'..Sep.93 3:27 l

n, lR08 COL Cf8 CIE PROS [ IND LOC INCH 1 JNCH2 CMAN VOLTS DEGTAP(l COWENTS l

................................................+......................................................................

1 I

l l 55 59 fic TEM 56018 17 080

.15

.00 ut

.28 120 37 (RESULT Of DISCRIPANCY RESOLUTION l

l 1

l l 31 71 ffC T(H 56018 36 06C 9.78

.00 1

49 142 45 l l

u........................+...e.

lLDW COL CEB CEE PROBf ]ND LOC ]NCM1 INCH 2 CHAN VOLTS DEG TAPfl COWWENTS l

PAGE 1

TOTAL TUBES 2

i i

I i

I l

3 :..

TABLE E - SG-C -AVB PERCENT THRU WALL INDICATIONS 3

utllsforw Unit 3 NEU.C/F INSPECTION: Aug 93 2 Sep 93 14:18 l Rod COL CES CEE PROBE IND LOC INCH 1

]NCN CHAN VOLTS DEG TAPfl CouuENTS l

l I

l l 37 15 TEC TIM 56018 25 AV2

.00

,00 M2 1.06 5l l

l 3F 15 TEC TEM 560-E8 26 Av5

.00

.00 E2 1.11 5l l

l 3F 15 ffC f(H 560 E8 17 Av6

.00

.00 M2

.56 5l l

l I

I l 42 23 TEC TfH 560 E8 25 Av3

.00

.00 u2

.99 9l l

l 42 23 f tC TfH 560 f 8 29 Av4

.00

.00 u2 1.30 9l l

l 42 23 TEC TEM 560 E8 25 Av5

.00

.00 u?

1.00 9l l

l I

I l 53 28 TEC T(H MO EB 18 Av2

.00

.00 u2

.69 13 l RESULT OF DISCREPANCY RESOLUTION j

l 53 28 ftC TEH 560 E8 19 Av5 18

.00 u2

.76 13 l RESULT OF DISCREPANCY RE50LUT10N l

l l

l l 51 41 f tC TEH %0 f 8 20 Av4

.00

.00 u2

.76 21 l l

l St 41 TEC TEH 560.t8 26 Av5

.03

.00 M2 1.15 21 l l

l 55 41 TEC ftH 560 18 18 Av6

.10

.00 M2

.65 21 l RESULT OF DISCREPANCY RESOLUTION j

l l

1 l 41 42 TEC llH 560-(8 20 Av3

.00

.00 u2

.79 21 )

l i

I i

l 42 48 f(C TEH 560 !8 30 Av4

.00

.00 u2 1.41 25 1 l

1 l 43 48 TfC TEH $60 E8 29 Av5

.00

.00 m2 1.32 25 l l

l l

l 4*

54 TEC TEM 560 !8 18 AY1

.00

.00 u2

.06 29 l l

l 41 54 TIC TfH 560-E8 19 Av3

.08

.00 v2

.76 29 l RESULT OF DISCREPANCY R[$0LUT10N l

l 41 54 TEC TIM 560 18 22 Av4

.08

.00 u2

.89 29 l l

l 41 54 TEC TIM $60 t8 24 Av5

.03

.00 M2 1.04 29 l l

l 1

I l 3!

Et itC TEM 560 f8 32 Av2

.03

.00 M2 1.72 33 [

]

l l af 61 TIC TEH 560 EB 23 Av3

. 05

.00 M2

.52 33 l l 3!

Et ifC 1tM 560.E8 19 Av4

.00

.00 u2

.70 33 l l

l l

3 l 41 62 TEC TfH 560 E8 20 Av2

.05

.00 M2

.78 33 l l

l 41 (2 TIC TIM 560.E8 11 AV3

. 46

'l E2

,34 33 l l

l 41 62 1(C TEM 560 !B 16 Av4

. 44

.t u2

.57 33 l l

l 41 62 TIC TEH 560 E8 24 Av5

. 08

.00 M2 1.05 33 l l

I I

l l 45 78 TIC T!N 560 f8 14 Av3

. 21

.00 u2

.56 49 1 RESULT OF LEAD ANALYST RIV!!w l

] di is f(C TfH 560 E8 24 Av4

.00

.00 u2 1.14 491 RESULT OF LE AD ANALYST REVIEn l

l l

l l 27 79 1EC TEH $60 18 20 AV3

. 61

.00 u2

.45 49 l l

l l

1 l 53 92 TEC 1EM 560 E8 34 Av2

. 00

.00 u2 1.80 57 j l

l 57 92 TIC TEM 560-[8 44 Av3

.00

.00 u2 3.12 57 lRESJLT OF DISCREPANCY RESOLUTION l

...........lRgigST FOR POSITIV! !.D.

l l 5; 97......

l 5')

92 Ttt TEM 560-[8 45 Av4

.00

.00 u2 3.32 571 RESULT OF DISCREPANCY RESOLUTION l

..l RETEST FOR POSITIVE !.D.

l l 50 92......................

l 50 92 ftC 1EN 560 EB 38 M

.00

.00 M2 2.17 57 j l

1 1

I l 50 94 ftC TEH $60 18 28 AV4

.00

.00 M2 1.16 59 l l

............+...+........................................................................,........................

[ROA C0t Cf8 CEE PROBE INO LOC $NOH1

]NCH2 CHAN V0iTS D(G TA#El Couu!NTS l

PAGE TUBES 13

. ~

..~.u-

... ~

.Kl_.... r..,e *. 'e-s a-4.r ;*.., : _w,,; y.,.r.emi + : ~ 1r - '. -.

o e

c 2

iLs2Y :_ '"* A b is's4 =2^~e'~WA.

~~

4' y,.

.w h

TABLE E - SG-C -AVB PERCENT THRU WALL INDICATIONS (CON'T)

Millstone Unit 3 effU -C/F INSPECT 10N:

Aug.93 2 Sep 93 14:18

..............+..................+.......................................................................................,

l Row COL CEB CEE PROSE IND LOC ICH1 INCH 2 CHAN YOL18 DEG TAPE l COWWENTS l

4...+...................

l $0 94 1EC TEH 560 08 32 Av5

.00

.00 M2 1,54 59 l l

l I

I l 49 96 TEC TEN 56.108 22 Av5

.00

.00 M2

.76 59 l RESULT OF DISCREPANCY RESOLUTION l

l 49 96 TEC TEM 560 EB 28 Av6

.00

.00 M2 1.16 59 l l

1 1

1 l 25 115 TEC TEH 560 E8 20 AV6

.37

.00 M2

.74 71 l RESULT OF LEAD ANALYST REVIEW l

lE04 COL CES CEE PROBE ]ND LOC ]NCH1 INCH 2 CMAN VOLTS DEG T APE l COWENis l

.............................+....................................................................

PAGE 2

TOTAL TU6ES 15 '

b o

e

r-

. ~ - -

.m t

TABLE F -S/G-C HISTORICAL ECT RESULTS FOR AVB FLAWS _>_20%

TW IN 1993 Row Col Location Nov' 87 May '89 Aug '93 37 15 AV2 NDD NDD 25 %

AV5 15%

26%

26 %

42 23 AV3 NT NT 25 %

AV4 NT NT 29 %

AV5 NT NT 25 %

56 41 AV4 18%

18%

20 %

AV5 17%

22 %

26%

41 42 AV3 NT NT 20 %

40 48 AV4 NT NT 30 %

AV5 NT NT 29 %

41 54 AV4 NT NT 22%

'AV5 NT NT 24 %

36 61 AV2 NT NT 32 %

AV3 NT NT 23 %

41 62 AV2 NT NT 20 %

AV5 NT NT 24 %

49 78 AV4 NT NT 24 %

39 79 AV3 NT NT 20 %

50 92 AV2 NT 32%

34 %

AV3 NT 37 %

44%

AV4 NT 36%

45 %

AV5 NT 32 %

38 %

50 94 AV4 NDD 18%

28 %

AV5 NDD 24 %

32 %

49 96 AV5 NDD NDD 22 %

AV6 NDD 18%

28 %

25 116 AV5 NT NDD 20 %

1

c..

A

~

TABLE G - S/G C HOT LEG PERCENT THRU WALL INDICATIONS W111 stone Unit 3 NEU C/F INSPECTION:

Aug 93 2 Sep.93 14:15

.+.,.+.

+

e

+

< +

.+.

.+

!PD# C JL CEB CEE PACBE IND LCC INCHI

}NCH2 CHAN VOLTS DEG TAPE l COMMENTS l

4

,.+..

.+.

+

.+..+.

+

.+

l l

- - - - ND HOT LEG PEACEhi INDICATIONS REPCaiED l

l l

lAOW COL CEB CEE PriCSE IND LOC INCM1 INCH 2 CHAN VOLTS DEG TAPE l COMMENTS l

.. +

.+. +..

.+-

....+.

.+....+.

.+

PAGE 1

TOTAL TUBES 0

\\t 1

I

TABLE H - S/G C COLD LEG PERCENT THRU WALL INDICAT Millstone Unit 3 NEU C/F INSPECTION:

Avg.93 2.Sep.93 9:21

)

. +.

.+-..

.+,....

..+

l40W COL CEB CEE P40BE IND LOC INCH 1 INCH 2 CHAN VOLTS DEG TAPEI COMMENTS l

e 1

I l

l 18 7 TEC TEM 500 EB 12 03C 38.21

.00 1

.82 157 1 l9ESULT OF DISCAEPANCY RESOLUTION l

1 I

I l 48 e5 TEC TEM %0 E0 26 02C 1.75

.00 1

.71 146 55 lAESULT OF DISCREPANCY RESOLUTION l

4 i

lA0W COL CEB CEE PROBE IND LOC INCH 1 INCH 2 CMAN VOLTS DEG TAPE l COMMENTS l

PAGE 1

TOTAL TUBES 2

)

ML20072C585

Text

SUMMARY

=

-----=

=

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