CPSES-200600269, Eighth Refueling Outage (2RF08) Steam Generator Twelve Month Report

Eighth Refueling Outage (2RF08) Steam Generator Twelve Month Report

ML060540491
Person / Time
Site:	Comanche Peak
Issue date:	02/14/2006
From:	Blevins M, Madden F TXU Generation Co, LP, TXU Power
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
CPSES-200600269, RP-39, TXX-06026
Download: ML060540491 (12)

Text

TXU TKU Power Mike BWans Comanche Peak Steam Senior Vice President Electric Station Nuclear P. 0. Box 1002 (EO1)

Glen Rose, TX 76043 Ref: 10 CFR 50.55a Tel: 254 897 5209 Fac 254 897 6652 mike.blevinsbtlu.com CPSES-200600269 Log # TXX-06026 RP-39 February 14, 2006 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555

SUBJECT:

COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)

DOCKET NO 50-446 UNIT 2 EIGHTH REFUELING OUTAGE (2RF08)

STEAM GENERATOR TWELVE MONTH REPORT REF: TXU Power letter, logged TXX-05092, from Mike Blevins to the NRC; dated April 28, 2005.

Gentlemen:

By means of this letter, TXU Generation Company LP (TXU Power) submits the Technical Specification 5.6.1 0.b twelve-month report of the results of the steam generator tube in-service inspection completed during the Unit 2 eighth refueling outage (2RF08). The 2RF08 fifteen-day tube plugging report of Technical Specification 5.6.1 0.a was previously submitted via the above listed Reference.

This communication contains no new or revised license commitments.

Should you require any other additional information please contact Mr. Bob Kidwell at (254) 897-5310.

A member of the STARS (Strategic Taeming and Resource Sharing) Alliance Callaway

• Camanche Peak

• Diablo Canyon

• Palo Verde

• South Texas Project

• Wblf Creek Ar-41

TXX-06026 Page 2 of 2 Sincerely, TXU Generation Company LP By: TXU Generation Managernent Company LLC, Its General Partner Mike Blevins

/4~Madden~

By:

Regulatory Affairs Manager RJK Attachment c- B. S. Mallett, Region IV M. C. Thadani, NRR Resident Inspectors, CPSES

Attachment to TXX-06026 Page 1 of 10 COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)

UNIT 2, EIGHTH REFUELING OUTAGE (2RF08)

STEAM GENERATOR TUBE INSPECTION RESULTS TECHNICAL SPECIFICATION 5.6.10.b

Attachment to TXX-06026 Page 2 of 10 CPSES 2RF08 INSPECTION PLAN The CPSES 2RF08 inspection exceeded both the Technical Specification minimum requirements as well as the recommendations of EPRI 1003138, PWR Steam Generator Examination Guidelines: Revision 6. The 2RF08 inspection included approximately:

1. 57% full length bobbin inspection in steam generator 1 (except Row I and 2 U-bend regions)

2. 59% full length bobbin inspection in steam generator 2 (except Row 1 and 2 U-bend regions)

3. 60% full length bobbin inspection in steam generator 3 (except Row I and 2 U-bend regions)

4. 74% full length bobbin inspection in steam generator 4 (except Row I and 2 U-bend regions)

5. 50% +Pt inspection of Row 1 and 2 U-bend regions in all steam generators

6. 50% +Pt inspection of the hot leg top of tubesheet (TTS) in all steam generators (i.e., 3%

sample +3 inches to tube end and 47% sample +3 inches to -9 inches)

7. 50% +Pt inspection of the expanded baffle plate intersections in all steam generators

8. 100% +Pt inspection of all dented tube support plate (TSP) intersections > 2 volts at the F-3 TSP in all steam generators

9. 50% +Pt inspection of > S volt dings in the hot legs of all steam generators

10. 100% +Pt inspection of previous > 5 volt dings in the U-bend region of all steam generators

11. Special Interest +Pt inspections for bobbin possible flaw indications in all steam generators

12. 100% tube plug video inspection in all steam generators

13. A foreign object search and retrieval (FOSAR) in accessible areas of the TTS and baffle plate B (C2) in all steam generators Notes

1. Tubes identified as possibly having elevated residual stress (IN 2002-21 Supplement 1) were included in the full length bobbin program (items 1, 2, 3, 4) and TTS +Point program (item 6).

2. The 100 largest over-expanded tubes by diameter dimension and the largest 100 over-expanded tubes by bobbin voltage were included in the full depth TTS +Point program (item 6).

Attachment to TXX-06026 Attachment to TXX-06026 Page 3 of 10 CPSES UNIT 2 TUBE PLUGGING BY REFUEL OUTAGE Cycle FPY SG SG 3 SG 4 Total  % plugged

_ _ __ - (cumulative)

Preservice 0 5 3 3 9 20 0.11%

2RFOI 0.9096 0 0 0 0 0 0.11%

2RF02 2.0901 0 0 0 0 0 0.11%

2RF03 3.4894 3 5 0 0 8 0.15%

2RF04 4.7060 1 0 0 4 5 0.18%

2RFO'5 6.1375 3 0 0 1 4 0.20%

2RF06 7.5195 0 4 7 0 11 0.26%

2RF0 7 8.8247 3 0 0 1 4 0.28%

2RF08 10.2034 5 2 4 2 13 0.36%

Total lubes __ -_ a_ 20 14 14 17 65 l_ -_ l Total NO per SG -______X___0.44%0.31% 0.31 % 0.38% [_- l l

Attachment to TXX-06026 Page 4 of 10 CPSES Unit 2 - 2]RF08 Inspection Results The inspection results are included in the following tables which list the tubes with percent through wall indications and those tubes with indications that were repaired via installation of mechanical plugs (the I-codes listed and a restricted tube were also plugged). All percent through wall indications were less than the 40% Technical Specification repair limit with the maximum values as follows: SG 1-37%, SG 2-34%, SG 3-34% and SG 4-25%. The indications listed in the following table are defined as:

PCT - Percent Through Wall Indication SVI - Single Volumetric Indication RRT - Retest Restricted Tube ltoan. (anIratnre 1.7CyAAl .. tUVII 1

1, A,

I

.A.

I an aXIMUAV Dawr-rri

• %I utail thrwouuh Wall Lux VTL "II antA DRnl-aiwAti EAu IAB IUL flnatanc "XVAVILI"t IA SG Row Column Indication Percent Plugged Location Inch 1 30 11 PCT 18 No AV1 0.08 1 30 11 PCT 23 No AV3 0.14 1 31 11 PCT 13 No AV1 0.06 1 31 11 PCT 15 No AV3 0.19 1 31 11 PCT 12 No AV4 0.14 1 30 12 PCT 24 No AV2 0.25 1 31 12 PCT 20 No AV3 0 1 32 12 PCT 23 No AV2 0 1 34 13 PCT 29 No AV2 0 1 34 14 PCT 18 No AV3 0.14 1 35 14 PCT 15 No AV2 -0.03 1 36 15 PCT 15 No AV2 0 1 36 15 PCT 15 No AV3 0.05 1 35 16 PCT 18 No AV2 -0.11 1 36 16 PCT 24 No AV3 0.06 1 37 16 PCT 27 No AV2 0.14

_1 38 16 PCT 34 No AV2 0.08 1 37 17 PCT 34 No AV2 0 1 38 17 PCT 17 No AV4 0 1 39 17 PCT 26 No AV2 0 1 39 17 PCT 21 No AV3 0 1 39 17 PCT 16 No AV4 0 1 35 18 PCT 15 No AV3 0.06 1 39 18 PCT 36 Yes AV2 0 1 39 18 PCT 15 Yes AV3 0.06 1 39 18 PCT 17 Yes AV4 0.03 1 39 20 PCT 31 No AV2 0 1 40 20 PCT 27 No AV2 0 1 40 20 POT 18 No AV3 -0.03 1 40 20 PCT 20 No AV4 -0.06 1 41 20 PCT 13 No AV2 -0.03

_1 41 20 PCT 20 No AV3 0.09

Attachment to TXX-06026 Page 5 of 10 SG Row ,Column Indication Percent Plugged Location Inch 1 44 23 PCT 14 No AV4 0.03 1 44 25 PCT 17 No AV2 0.08 1 45 26 PCT 29 No AV2 0 1 45 26 PCT 17 No AV3 -0.06 1 44 27 PCT 18 No AV2 0 1 46 27 PCT 13 No AV1 0 1 46 27 PCT 17 No AV2 0.24 1 46 27 PCT 12 No AV4 0.08 1 45 29 PCT 17 No AV1 0 1 45 29 PCT 15 No AV2 0 1 45 29 PCT 19 No AV3 0 1 40 30 PCT 23 No AV2 0 1 40 30 PCT 18 No AV3 0 1 48 30 PCT 12 No AV1 -0.2 1 40 31 PCT 15 No AV1 -0.13 1 40 31 PCT 20 No AV2 0.19 1 40 31 PCT 22 No AV3 -0.08 1 40 31 PCT 20 No AV4 -0.16 1 46 31 PCT 22 No AV2 0 1 46 31 PCT 21 No AV3 0 1 46 31 PCT 25 No AV4 0 1 41 32 PCT 12 No AV2 0.06 1 35 34 PCT 19 No AV2 0.05 1 35 34 PCT 16 No AV3 0.11 1 45 34 PCT 17 No AV3 -0.08 1 43 35 PCT 15 No AV2 0.06 1 34 36 PCT 14 No AV4 0.14 1 38 36 PCT 12 No AV2 0 1 40 41 PCT 14 No AV4 0.03 1 40 43 PCT 22 No AV2 -0.11 1 40 43 PCT 25 No AV3 0 1 40 43 PCT 23 No AV4 -0.03 1 40 45 PCT 18 No AV2 0.14 1 47 50 PCT 16 No AV4 -0.19 1 49 56 PCT 15 No AV4 0.16 1 49 56 PCT 12 No AV4 0.19 1 49 56 PCT 15 No AV4 0 1 49 56 PCT 5 No C5 -0.44 1 40 60 PCT 19 No AV4 0.5

_1 44 60 PCT 12 No AV3 0 1 40 71 PCT 17 No AV1 0.35 1 40 74 PCT 19 No AV1 -0.14 1 43 77 PCT 19 No AV4 0.31 1 39 78 PCT 20 No AV4 0 1 45 79 PCT 26 No AV4 0.3 1 43 81 PCT 19 No AV1 0.06

Attachment to TXX-06026 Page 6 flO SQG Row Column Indication Percent Plugged Location Inch

_1 43 81 PCT 26 No AV2 0 1 43 81 PCT 28 No AV3 0 1 45 82 PCT 14 No AV1 -0.14 1 45 82 PCT 16 No AV2 0 1 45 82 PCT 10 No AV4 0 1 45 83 PCT 24 No AV2 0.08 1 46 83 PCT 25 No AV2 0.19 1 45 84 POT 19 No AV2 -0.06 1 45 84 PCT 19 No AV3 -0.06 1 45 84 PCT 21 No AV4 -0.03 1 33 86 PCT 17 No AV2 -0.06 1 33 86 PCT 10 No AV3 -0.11 1 46 86 PCT 12 No AVi 0 1 46 86 PCT 29 No AV2 -0.22 1 46 86 PCT 20 No AV3 -0.03 1 43 87 PCT 21 No AV1 0 1 43 87 PCT 28 No AV2 -0.06 1 43 87 PCT 18 No AV3 -0.06 1 45 87 POT 16 No AV2 -0.05 1 45 87 PCT 30 No AV3 -0.05 1 42 88 PCT 19 No AV3 -0.03 1 45 88 PCT 37 Yes AV2 0 1 38 89 PCT 20 No AV1 -0.03 1 38 89 PCT 31 No AV2 -0.05 1 38 89 PCT 20 No AV4 -0.05 1 39 89 PCT 11 No AV2 0.19 1 46 89 PCT 19 No AV2 -0.03 1 46 89 PCT 26 No AV4 -0.06 1 38 90 PCT 17 No AV1 -0.11 1 41 90 PCT 25 No AV2 -0.03 1 41 90 PCT 18 No AV4 -0.05 1 39 91 PCT 10 No AV1 0.03 1 39 91 PCT 10 No AV2 0.11 1 39 91 PCT 13 No AV3 0.11 1 39 91 PCT 14 No AV4 0.08 1 44 91 PCT 17 Yes AV2 0.11 1 44 91 PCT 23 Yes AV3 0.14 1 44 91 PCT 35 Yes AV4 0.14 1 41 93 PCT 16 No AV2 0.12 1 41 93 PCT 21 No AV3 0.06 1 43 93 PCT 18 No AV3 0.06 1 41 94 PCT 30 No AV2 -0.17 1 41 94 PCT 13 No AV3 0 1 42 94 PCT 31 No AV2 0 1 41 95 PCT 21 No AV3 -0.06 1 39 96 PCT 22 No AV4 -0.06

Attachment to TXX-06026 Page 7 of 10 SG Row Column Indication Percent Plugged Location Inch 1 33 97 PCT 12 No AV1 0.25 1 40 97 PCT 9 No AV2 0 1 40 97 PCT =16 No AV3 0.19 1 36 98 PCT 16 No AV1 -0.14 1 36 98 PCT 15 No AV3 0.08 1 38 98 PCT _17 No AV1 -0.03 1 38 98 PCT 12 No AV2 0 1 38 98 PCT 21 No AV3 0.03 1 38 98 PCT 15 No AV4 -0.06 1 32 99 PCT 8 No AV3 -0.09 1 36 99 PCT 31 No AV3 0.11 1 37 99 PCT 16 No AV3 0.11 1 38 99 PCT 20 No AV1 0.19 1 38 99 PCT 16 No AV2 0 1 38 99 PCT 24 No AV3 0.14 1 38 99 PCT 16 No AV4 0.08 1 33 100 PCT 15 No AV3 -0.06 1 34 100 PCT 23 No AV3 -0.06 1 35 100 PCT 20 No AV3 0 1 36 100 PCT 16 No AV2 -0.22 1 35 101 PCT 22 No AV2 0.08 1 35 101 PCT 15 No AV3 -0.09 1 35 101 PCT 22 No AV4 -0.03 1 33 102 PCT 16 No AV1 0.19 1 33 102 PCT 29 No AV2 0.17 1 34 102 PCT 17 No AV1 0.06 1 34 102 PCT 20 No AV2 0 1 34 102 PCT 28 No AV4 -0.03 1 31 103 PCT 17 No AV3 o 1 32 103 PCT 13 No AV2 -0.06 1 33 103 PCT 17 No AV2 0.06 1 28 104 PCT 16 No AV1 -0.14 1 28 104 PCT 14 No AV4 -0.03 1 23 108 PCT 13 No AV2 -0.03 1 4 109 RRT N/A Yes N/A N/A

__1 5 111 SVI 0 Yes C1 0.29

_1 5 111 PCT 22 Yes C1 0.14

Attachment to TXX-06026 Page 8 of 10 S;G Row Column Indication Percent Plugged Location Inch

_2 26 9 PCT 15 No AV2 0.08 2 30 10 PCT 24 No AV1 0

2 30 10 PCT 28 No AV2 0.16

2 30 10 PCT 32 No AV3 0.03 2 30 10 PCT 15 No AV4 0.05

2 30 11 POT 19 No AV2 0.16

2 30 11 PCT 20 No AV3 0

2 34 13 PCT 24 No AV2 0

2 34 13 PCT 14 No AV3 0

2 39 18 PCT 29 Yes AV2 0

2 39 18 PCT 34 Yes AV3 -0.03

2 39 18 PCT 15 Yes AV4 0.05

2 39 19 PCT 17 No AV2 -0.03

2 39 19 PCT 23 No AV4 0

2 40 29 PCT 16 No AV2 0.18

2 40 29 PCT 27 No AV3 0.15

2 39 34 PCT 17 No AV2 -0.03

2 39 34 PCT 18 No AV3 -0.08

2 32 56 PCT 10 No AV2 0.16

2 48 56 PCT 15 No AV2 0.16

2 47 59 PCT 24 No AV1 0.03

2 47 59 PCT 16 No AV3 -0.06

2 47 59 PCT 32 No AV4 0.11

2 48 69 PCT 21 No AV4 0

2 46 75 PCT 14 No AV3 0

,2 46 75 PCT 18 No AV4 0.08

2 37 76 PCT 15 No AV2 -0.11

2 38 76 PCT 15 No AV2 -0.05

2 16 79 SVI 0 Yes C7 8.79

2 16 79 PCT 24 Yes C7 8.84

2 33 86 PCT 17 No AV2 -0.08

,2 33 86 PCT 15 No AV3 0.03

2 40 86 PCT 17 No AV2 -0.08

2 40 86 PCT 15 No AV3 0.05

2 47 88 PCT 18 No AV4 0.05

2 44 89 PCT 30 No AV2 -0.13

2 44 89 PCT 26 No AV3 -0.08

2 44 89 PCT 19 No AV4 0.05

2 44 91 PCT 17 No AV3 0.1 2 45 91 PCT 21 No AV3 0

.2 45 91 PCT 20 No AV4 0

.2 36 99 PCT 30 No AV2 -0.03

.2 30 104 PCT 19 No AV1 -0.05 2 30 104 PCT =12 No AV4 0.1 2 24 108 PCT 18 No AV4 0.08

Attachment to TXX-06026 Page 9 of 10 SG Row Column Indication Percent Plugged Location Inch

3 32 12 PCT 24 No AV2 0

3 33 17 PCT 19 No AV3 0 3 41 24 PCT =16 No AV3 0

3 43 24 PCT 16 No AV2 0

3 6 33 SVI 0 Yes C6 0.41

.3 6 33 PCT 18 Yes C6 0.41

3 7 33 SVI 0 Yes C6 0.36

.3 7 33 PCT 22 Yes C6 0.37

3 49 35 PCT 17 No AV4 0

.3 49 36 PCT 14 No AV4 0.05

3 49 38 PCT 17 No AV1 0.08

3 49 38 PCT 13 No AV4 0.16

3 48 40 SVI 0 Yes C2 0.6

3 48 40 PCT 19 Yes C2 0.57

.3 48 41 SVI 0 Yes C2 0.39

3 48 41 PCT 34 Yes C2 0.39

3 49 42 PCT 12 No AV4 0.26

3 49 43 PCT 11 No AV1 0.08

.3 49 47 PCT 14 No AVi 0 3 49 49 PCT 13 No AV1 0

3 49 49 PCT 16 No AV4 0

.3 45 55 PCT 7 No C2 0.19

.3 17 56 PCT 28 No AV4 0 3 48 62 PCT 14 No AV1 0

3 49 62 PCT 16 No AV1 0 3 49 64 PCT 14 No AV1 0.05

3 49 67 PCT 14 No AV1 -0.11 3 43 68 PCT 18 No AV2 0.03

_3 49 68 PCT 15 No AV1 -0.35

3 43 82 PCT 21 No AV2 0 3 43 82 PCT 25 No AV3 0

3 43 82 PCT 25 No AV4 0

3 41 83 PCT 15 No AV2 -0.03

_3 41 83 PCT 12 No AV3 0

.3 39 84 PCT 28 No AV2 0.05 3 39 84 PCT 22 No AV3 -0.08

.3 39 84 PCT 22 No AV4 -0.11 3 41 85 PCT 20 No AV3 -0.03 3 33 87 PCT 25 No AV4 0 3 41 87 PCT 17 No AV1 0 3 41 87 PCT 22 No AV2 -0.03 3 41 87 PCT 21 No AV3 0 3 43 93 PCT 14 No AV2 -0.05 3 40 95 PCT 17 No AV1 0.05 3 40 95 PCT 16 No AV2 -0.08

Attachment to TXX-06026 Page 10 of 10 SG Row Column Indication Percent Plugged Location Inch 3 40 95 PCT 12 No AV3 0.05

3 38 98 PCT 23 No AV2 0.08

.3 38 98 PCT 18 No AV3 0.22

_3 35 100 PCT 16 No AV2 -0.08

3 34 101 PCT 31 No AV2 -0.05

_3 35 101 PCT _17 No AV1 0

_3 35 101 PCT 15 No AV4 0 3 31 103 PCT 20 No AV1 -0.05

3 33 103 PCT 18 No AV1 -0.03

3 33 103 PCT =17 No AV2 -0.05

3 33 103 PCT 17 No AV4 0

_3 30 105 PCT 26 No AV2 0

_3 24 107 PCT 21 No AV2 -0.11

_3 26 107 PCT 21 No AV2 0 SG Row Column Indication Percent Plugged Location Inch 4 39 19 PCT 12 No AV2 -0.07 4 45 24 PCT =16 No AV4 0.19 4 27 50 PCT 20 No AV4 0.1 4 47 59 PCT = 12 No AV4 -0.11 4 38 71 PCT 18 No AV2 0.05 4 38 71 PCT 14 No AV3 0.08 4 27 74 SVI 0 Yes H1 16.82 4 27 74 PCT 15 Yes H1 16.67 4 38 79 PCT 13 No AV3 0.11 4 37 84 PCT 16 No AV2 0.08 4 37 84 PCT 25 No AV3 0.08 4 37 84 PCT 12 No AV4 0 4 24 89 SVI 0 Yes H8 0.76 4 24 89 PCT 19 Yes H8 0.73 4 44 89 PCT 14 No AV2 0.21 4 44 89 PCT 16 No AV3 0.11 4 44 89 PCT 18 No AV4 -0.21 4 23 93 PCT 12 No AV2 0 4 38 97 PCT 16 No AV3 0 4 40 97 PCT 16 No AV3 0.03 4 40 97 PCT 16 No AV4 0 4 29 99 PCT 14 No AV3 0.03