ML20128M361
| ML20128M361 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 10/10/1996 |
| From: | James Fisicaro ENTERGY OPERATIONS, INC. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| GL-95-03, GL-95-3, W3F1-96-0170, W3F1-96-170, NUDOCS 9610160070 | |
| Download: ML20128M361 (28) | |
Text
-. __
i
,O Ent: gy Operations,Inc.
j Killona, LA 70066 Tel 504 739 6242 James J. Ftsicaro aY' i
W3F1-96-0170 A4.05 PR October 10,1996 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555
Subject:
Waterford 3 SES Docket No. 50-382 License No. NPF-38 Reporting of Special Report Gentlemen:
Attached is Special Report Number SR-96-002-00, Steam Generator Eddy Current Examination for 7th Refueling, for Waterford Steam Electric Station Unit 3. This Special Report is submitted in accordance with Technical Specifications 4.4.4.5 b and 6.9.2.
If you have any questions concerning the above, please contact myself at (504) 739-6242 or J. E. Howard at (504) 739-6327.
Very truly yours, M
h J.J. Fisicaro Director Nuclear Safety CMD/DMU/tjs Attachment
\\ \\
9610160070 961010 PDR ADOCK 05000302 G
PDR,
.. _.~. -.
e 1
Reporting of SR 96-002-00
- W3F1-96-0170 Page 2 i
October 10,1996 q
cc:
L.J. Callan, NRC Region IV C.P. Patel, NRC-NRR A.L. Garibaldi J.T. Wheelock - INPO Records Center R.B. McGehee N.S. Reynolds NRC Resident inspectors Office Administrator - LRPD i
1 f
F l
S/G Ed'dy Current 12 Month Special Report Page 1 of 26 ATTACHMENT A I
SPECIAL REPORT SR-96-002-00 STEAM GENERATOR EDDY CURRENT EXAMINATION (7TH REFUELING)
INTRODUCTION Inservice eddy current examination of Waterford 3 Steam Generator (S/G) tubing was completed by ABB-CE on October 11,1995. This report is submitted in accordance with Technical Specification 4.4.4.5.b, which requires the complete results of this inspection to be submitted in a special report pursuant to Technical Specification 6.9.2, within 12 months following the inspection.
l The eddy current testing examination program was performed to meet the requirements of l
Technical Specification 4.4.4.0. Waterford 3 performed a 20% planned geometric random sample fulllength bobbin coil examination of each steam generator. Additionally, Waterford 3 i
performed a 500 tube per S/G augmented full length bobbin coil inspection of special interest areas: previously degraded tubes; tubes adjacent to stay rods; bundie peripheral; and preventive plugged region. S/G hot leg top of the tubesheet expansion transition 20% planned l
random sample examitations were performed utilizing the Zetec Plus Point 3-coil designed with a 0.115 pancake coil and two plus point coils (mid and high frequencies). An augmented scope j
of 500 tubes per S/G was incorporated into the incpection plan as special interest. This l
included the following hot leg tubriiocations: adjacent to stay rods; sludge pile region and bundle peripheral. The tubesheet Plus Point examination scanned two inches above and below the top of the tubesheet plane.
As a result of the full length bobbin coil examination in S/G #1, Waterford 3 identified one tube j
greater than 40% through wall which exhibited greater than 10% additional wear from previous examination. The Refuel #6 data for tube Row 49 Line 53 was previously 38% through wall at 4
vertical strap BW5 (Center Vertical). Per Tech Specs, Waterford 3 entered a Category-2 inspection and expanded by 2S (5F', Tubes) concentrated in two symmetrical areas located on I
cither side of the stay cylinder region (Center). No further bobbin coil expansion was required as result of the Category-2 data.
j 1
In response to NRC Generic Letter 95-03, Entergy Operations, Inc. Waterford 3 decided to utilize the plus point probe technology for the hot leg top of tubesheet examination. The i
program was set-up to perform a 20% sample inspection of each S/G. Expansion criteria was i
stated in Waterford 3's Generic Letter 95-03 response to inspect 100% of the hot leg top of the tubesheet expansion transition upon identifying one circumferentially oriented indication. Four days into the hot leg top of tubesheet acquisition Waterford 3 identified one circumfereotially
S/G Ed'dy Current i2 Month Special Report Page 2 of 26 oriented indication. The inspection expansion of 100% in both S/G hot legs resulted in identifying seven outside diameter (OD) initiated circumferentially oriented indications.
S/G tube examinations were conducted in accordance with Combustion Engineering (CE)
Procedure No. LPL-410-006, Rev.1 in compliance with the USNRC Regulatory Guide 1.83 and ASME Section XI, " Rules for Inservice Inspection of Nuclear Power Plant Components," 1980 Edition, with Winter 1981 Addenda and Waterford 3 Technical Specification 3/4.4.4. S/G #1 bobbin coil data identified two tubes with upper bundle wear indications which exceeded the Tech Spec limit of 40% through wall. S/G #2 bobbin coil data revealed that there were no tubes within the 20% sample inspection which exhibited degradation greater than 40% through wall.
The hot leg inspection of 18,018 tubesheet expansion transition regions with the plus point 3-coil probe identified seven circumferentially OD oriented indications. All hot leg top of the tubesheet indications were approximately 20% maximum through wall depth varying over the arc lengths. The arc length extents varied from 40 to 70 Six of the seven indications were located in S/G #1 primarily within the sludge pile region with the exception of two which were located three tubes in from the bundle periphery. As for S/G #2, one circumferentially oriented indication was identified which was located in the sludge pile region.
As result of the 100% hot leg top of tubesheet plus point expansion in both S/Gs, Waterford 3 identified six "Possible Loose Part"(PLP) indications on the secondary side. These indications show some degree of wear just above the tubesheet plane (Approximately + 2" Above Tubesheet) where the PLPs contact two or three tubes surrounding the object. Waterford 3 administratively removed these six tubes from service by installing stakes on the hot leg and plugs in each plenum.
All bobbin coil pluggable indications and hot leg top of the tubesheet indications were plugged in accordance with ABB-CE Nuclear Operations Traveler No. 2005471-001, " Mechanical Tube Plugging S/G with 0.750" OD 0.048" Wall Tubes," Rev. O, dated 7/14/95. The steam generator tube plugs were manufactured from thermally treated inconel-690. Additionally, all tube plug locations were positively identified and video taped verifying correct tube locations.
In addition, Waterford 3 identified a leaking CE mechanically rolled Inconel-690 plug in S/G #1's preventively plugged cold leg batwing region. Tubes in the preventively plugged batwing region were removed from service as a result of predicted mechanical wear at the Anti-Vibration Bars (AVBs). The batwing preventive plugging work was performed by CE prior to commercial operation (8/85). The method of identifying the leaking plug was by routine visual scan of the tube plugs for evidence of boric acid crystal build-up. S/G #1 cold leg tube location Row 41 Line 89 was leaking from the plug OD. As a result, Waterford 3 initiated Condition Report CR-95-0895 and proceeded to remove Row 41 Line 89 tube plug from service by ABB-CE's TIG relaxation process. The plug removal work was performed in accordance with ABB-CE's procedure STD-410-057, " Remote Mechanical Tube Plug Removal Procedure," Rev. 3.
S/G Ed'dy Current 12 Month Special Report '
l Page 3 of 26 i
Upon removal of the leaking tube plug, it became apparent that the plug was collapsed. S/G #1 1
cold leg Row 41 Line 89 tube plug had symmetrically collapsed above the seating surface.
Cause of collapse can be attributed to the tube plug installation process utilized by CE back in August 1985 related to a deficient torque roll-out. The tube plugs installed by CE during this l
batwir g preventive plugging campaign were potentially not fully expanded and seated properly against the tube ID. The partially under expanded tube plug provided a primary water leak path j
into a structurally sound tube. As a method of corrective action was being developed by CE, j
Waterford 3 ran one full cycle with potentially under expanded tube plugs due to questionable torque roll-out acceptability.-
l During Refuel #1 (12/86), CE re-rolled one-hundred and forty-nine (149) preventively installed i
plugs in each plenum. The potential for primary water leakage pass tube plugs increased the l
probability of encapsulating primary water in sound tubing. The re-rolling process in 1986 trapped primary coolant in the sound tube which upon plant heat-up would flash and pressurize the sound tube and mechanical plug. The expansion of stonm in the sound tube eventually collapsed the plug providing another leak path as the tube plug seating surface was affected by 4
the deformed tube plug. On October 7,1995 Waterford 3 successfully removed the leaking CE mechanically rolled plug and reinstalled a new ABB-CE plug. Waterford 3 will continue to perform visual tubesheet scans for evidence of leaking tube plugs in subsequent refueling outages.
j l
i RESULTS OF EXAMINATION -
l STEAM GENERATOR #1 i
The Eddy Current Testing Bobbin Coil Inspection of 2,943 tubes in S/G #1 resulted in the
]
following analysis of indications:
77 Tubes Less Than 20% Thru Wall j
64 Tubes Greater Than or Equal to 20% But Less e
j Than 40% Thru Wall 2 Tubes Greater Than or Equal to 40% Thru Wall (Plugged) 1
S/G Eddy Current 12 Month Special Report l
Page 4 of 26 l
Continuation of S/G #1 ECT Indications:
S/G #1 100% (9,015 Tubes) Top of the Tubesheet inspection of Expansion Transition Region resulted in the following analysis of Single Circumferential Indications (SCis) and Possible Loose Parts (PLPs):
6 Tubes with Single Circumferential Indications maximum 20% through wall with 40 to 70 arc extents. SCis were Stabilized on the Hot Leg and Plugged in both Plenums.
4 Tubes with Secondary Possible Loose Parts (PLPs) were Stabilized i
and (Plugged)
The following tube listing identifies the indications as a result of Eddy Current Testing tubes in SIG #1 :
ROW LINE
%THRU WALL LOCATION COMMENTS 41 5
8%
6H 67 11 26 %
BW5 INDICATION @ 0.98" j
55 13 5%
BW6 1
74 14 10%
BW1 12%
BW4 19 15 14%
BW5 INDICATION @ -0.85" 14%
BW5 INDICATION @ 0.87" 61 15 22 %
BW6 INDICATION @ -0.76" 12%
BW6 INDICATION @ 0.84" 19%
BW5 INDICATION @ -0.84" 6%
BW5 INDICATION @ 0.71" 64 16 11 %
BW5 62 18 21 %
BW4 INDICATION @ 0.73" 84 18 8%
BW3 42 20 8%
BW5
' S/G Eddy Current 12 Month Speciel Report Page 5 of 26 Continuation of S/G #1 ECT indications:
l ROW LINE
%THRU WALL LOCATION COMMENTS 81 21 19%
8C 28 24 32 %
6H INDICATION @ -0.35" 72 24 5%
BWS 45 25 5%
SC 67 27 7%
BW5 71 27 11 %
BW4 1
77 27 21 %
BW6 INDICATION @ -0.65" 1
18%
BW6 INDICATION @ 0.84" 15%
BWS INDICATION @ -0.67" 17%
BW5 INDICATION @ 0.78" 19%
BW4 INDICATION @ -0.54" j
66 28 18%
3C 68 34 24 %
4C INDICATION @ 0.05" 57 35 24 %
7H
.NDICATION @ 26.79" 61 35 18%
BW5 14 %
BW6 105 35 19%
BW5 80 38 23%
BW6 INDICATION @ -0.91" 18%
BW4 INDICA. TION @ 1.10" 82 38 25 %
BW6 INDICATION @ -0.71" 10%
BW5 INDICATION @ -0.65" j
113 39 16%
BW7 42 40 15%
BW5 l
1 S/G Eddy Current
.12 Month Special Report Page 6 of 26 1
Continuation of S/G #1 ECT Indications:
i ROW LINE
%THRU WALL LOCATION COMMENTS 50 40 10%
- B'N5 39 41 23%
BW5 INDICATION @ -0.79" 45 41 15%
BW5 87 41 24 %
BW9 INDICATION @ 2.38" 32 42 22 %
4C INDICATION @ 14.69" 21 45 SCI TSH SINGLE CIRCUMFERENTIAL INDICATION @ 0.11".
STABILIZED & PLUGGED w/INCONEL-690 MECH IN EACH PLENUM.
31 45 SCI TSH SINGLE CIRCUMFERENTIAL INDICATION @ 0.16".
STABILIZED & PLUGGED w/INCONEL-690 MECH. IN EACH PLENUM.
37 45 13%
BW5 105 45 13%
BW7 44 46 24%
BW5 INDICATION @ -0.90" 26 %
BW5 INDICATION @ 0.95" 45 49 12%
BW5 59 49 22%
BW5 INDICATION @ 0.89"
S/G Eddy Current l
.1'2 Month Special Report
)
l Page 7 of 26 Continuation of SIG #1 ECT Indications:
i ROW LINE
%THRU WALL LOCATION COMMENTS 128 50 SCI TSH SINGLE CIRCUMFERENTIAL l
lNDICATION @ 0.14" STABILIZED & PLUGGED w/INCONEL-690 MECH. IN EACH PLENUM.
j 129 51 SCI TSH SINGLE j
CIRCUMFERENTIAL INDICATION @ 0.03".
l STABILIZED & PLUGGED j
w/INCONEL-690 MECH. IN EACH PLENUM.
46 52 20%
BW5 INDICATION @ 0.60" 50 52 12%
8H j
43 53 13%
BW5 l
49 53 50%
BW5 INDICATION @ 0.58" PLUGGED w/INCONEL-690 MECH.
105 53 20%
BW3 INDICATION @ -0.94" 82 54 27 %
BW5 INDICATION @ 0.90" 57 55 12%
BW4 50 56 21 %
BW5 INDICATION @ 0.75" 13%
BW5 INDICATION @ -0.78" 126' 56 9%
BW2 51 57 8%
BW4 85 59 19%
BW4
S/G Eddy Current
.12 Month Special Report Page 8 of 26 Continuation of S/G #1 ECT Indications:
ROW LINE
%THRU WALL LOCATION COMMENTS 129 59 22 %
BW2 INDICATION @ -0.64" 30 60 12%
BW5
'l
~
138 60 19%
9H 49' 61 21 %
8H INDICATION @ -1.38" 26 62 16%
BW9 84 62 12%
BW3 118 62 27% -
6C INDICATION @ 7.38" 46 64 25%
BW5 INDICATION @ -1.02" 14%
BW1 43 65 14%
BW5 139 65 VOL TSH VOLUMETRIC INDICATION
@ 0.22" DUE TO PLP.
STABILIZED & PLUGGED w/INCONEL-690 MECH. IN EACH PLENUM.
44.
66 20%
BW5 INDICATION @ 0.87" 50 66 25%
BW5 INDICATION @ -1.04" 51 67 23 %
BW4 INDICATION @ 0.78" 12%
BW5 INDICATION @ -0.96" 68 68 SCI TSH SINGLE CIRCUMFERENTIAL INDICATION @ 0.08".
STABILIZED & PLUGGED w/INCONEL-690 MECH. IN EACH PLENUM.
j i
i S/G Eddy Current
.12 Month Special Report Page 9 of 26 Continuation of SIG #1 ECT Indications:
ROW LINE
%THRU WALL LOCATION COMMENTS 135 67 16%
BW3 4
79-69 23%
6H INDICATION @ 3.26" l
46 70 28%
BW5 INDICATION @ 0.66" i
l 139 71 VOL TSH VOLUMETRIC INDICATION
@ 0.09" DUE TO PLP, STABILIZED & PLUGGED i
w/INCONEL-690 MECH. IN EACH PLENUM.
i 138 72 VOL TSH VOLUMETRIC INDICATION
@ 0.25" DUE TO PLP.
STABILIZED & PLUGGED w/INCONEL-690 MECH. IN EACH PLENUM.
140 72 VOL TSH VOLUMETRIC INDICATION
@ 0.69" DUE TO PLP.
STABILIZED & PLUGGED w/INCONEL-690 MECH. IN EACH PLENUM.
145 73 21 %
BW1 INDICATION @ 0.84" i
53 75 15%
BW6 146 76 31 %
BW1 INDICATION @ 1.83" l
51 77 23 %
BW4 INDICATION @ 0.95" 133 77 17%
BW3 12 %
BW4 1
68 78 29%
BW6 INDICATION @ 0.95" l
1 146 78 12%
BW4
S/G Eddy Currcnt
<12 Month Special Report Page 10 of 26 Continuation of S/G #1 ECT Indications:
l ROW LINE
%THRU WALL LOCATION COMMENTS 4
51 79 21 %
BW9 INDICATION @ -1.77" 18%
BW9 INDICATION @ 1.36" 78 80 10%
BW5 i
146 60 34 %
BW1 INDICATION @ -1.87" 82 82 19%
BW5 141 85 29%
BW3 INDICATION @ -0.89" 58 86 16%
BW9 60 86 25%
BW9 INDICATION @ 1.36" 62 86 15%
BW9 80 86 14 %
BW9 4
64 88 14%
BW9 i
146 88 27%
BW1 INDICATION @ 1.78" 18%
BW9 INDICATION @ 1.78" 147 89 36 %
BW1 INDICATION @ -1.81" 120 90 22 %
10H INDICATION @ -1.47" 146 90 42%
BW1 INDICATION @ 1.80" PLUGGED w/INCONEL-690 MECH.
147 91 27 %
BW9 INDICATION @ 1.82" 54 92 20%
8H INDICATION @ 0.35" 145 93 13%
BW9
SIG Eddy Current 12 Month Special Report Page 11 of 26 Continuation of SIG #1 ECT Indications.'
ROW LINE
%THRU WALL LOCATION COMMENTS 147 93 37 %
BW8 INDICATION @ -0.73" PREVENTIVELY PLUGGED w/INCONEL-690 MECH.
16%
BW8 INDICATION @ 0.72" 31 %
BW9 INDICATION @ 1.75" 145 95 29%
BW9 INDICATION @ -1.95" 82 96 22 %
BW5 INDICATION @ -0.68" 83 97 14 %
BW5 13%
BW6 70 98 10%
BW4 78 98 18%
BW6 49 99 17 %
BW1 145 99 17 %
BW9 78 100 22 %
BW6 INDICATION @ 0.73" 4
94 100 11 %
BW7 146 100 12%
BW9 l
145 101 20%
BW1 INDICATION @ 1.78" 22 %
BW9 INDICATION @ 1.81" 48 102 39 %
BW5 INDICATION @ 0.82" PREVENTIVELY PLUGGED w/INCONEL-690 MECH.
16%
BW5 INDICATION @ -0.82" 66 102 8%
BW4 J
i
S/G Eddy Current 12 Month Special Report Page 12 of 26 Continuation of S/G #1 ECT Indications:
ROW LINE
%THRU WALL LOCATION COMMENTS 72 102 12 %
BW4 144 102 19%
BW9 123 103 14%
BW2 145 103 25 %
BW1 INDICATION @ 1.78" 12%
BW2 INDICATION @ -0.41"
+
18%
BW7 INDICATION @ 0.69" 24 %
BW8 INDICATION @ 0.62" 13%
BW9 INDICATION @ -2.00" 22 %
BW9 INDICATION @ 2.00" 82 104 17%
8C 88 106 10%
BW3 144 106 14 %
BW1 143 107 8%
BW1 24 108 23 %
BW5 INDICATION @ 0.95" 42 108 26%
BW5 INDICATION @ -0.70" 22 112 3%
BW5 141 113 26 %
BW9 INDICATION @ -1.83" 19 115 25%
1H INDICATION @ 5.68" 49 115 15%
BW5 INDICATION @ -0.89*
12 %
BW5 INDICATION @ -0.89" 1
S/G Eddy Current 12 Month Special Report Page 13 of 26 Continuation of SIG #1 ECT Indications:
ROW LINE
%THRU WALL LOCATION COMMENTS 135 119 28%
BW2 INDICATION @ -0.68" 18%
BW2 INDICATION @ 0.71" 24 %
BW3 INDICATION @ 0.93" 26 %
BW4 INDICATION @ -0.71" 23%
BW4 INDICATION @ 0.96" 72 120 20%
BW4 INDICATION @ 0.83" 45 121 24 %
TSH INDICATION @ 0.93" 24 %
TSH INDICATION @ 0.95" 133 121 23%
BW2 INDICATION @ -0.89" 28%
BW2 INDICATION @ 0.80" 18%
BW3 INDICATION @ -0.65" 74 124 17 %
BW5 10%
BW6 99 125 13%
BW3 133 125 18%
7C 72 126 22 %
BW4 INDICATION @ 0.78" 9%
BW4 INDICATION @ -0.78" 16%
BW5 INDICATION @ -0.92" 26 128 SCI TSH SINGLE CIRCUMFERENTIAL INDICATION @ 0.17" STABILIZED & PLUGGED w/lNCONEL-690 MECH. IN EACH PLENUM.
A
S/G Eddy Current 12 Month Special Report Page 14 of 26 Continuation of S/G #1 ECT Indications:
ROW LINE
%THRU WALL LOCATION COMMENTS 76 128 23%
BW6 INDICATION @ 0.76" 15%
BW4 INDICATION @ 0.76" 10%
BW5 INDICATION @ -0.65" 15%
BW5 INDICATION @ -0.28" 11 %
BW5 INDICATION @ 0.90" 19%
BW6 INDICATION @ -0.73" 105 131 15%
BW3 63 137 10%
BW5 70 138 24 %
BW4 INDICATION @ -0.56" 28%
BW4 INDICATION @ 0.70" 32 %
BW5 INDICATION @ -0.72" 22%
BW5 INDICATION @ -0.03" 31 %
BW6 INDICATION @ -0.67" 35 %
BW6 INDICATION @ 0.61" 82 138 34 %
BW6 INDICATION @ 0.83" 13%
BW5 INDICATION @ 0.49" 76 140 24 %
BW6 INDICATION @ 0.61" 82 140 12 %
BW4 INDICATION @ 0.62" 19%
BW6 INDICATION @ -0.73" 13%
BW6 INDICATION @ 0.85" 78 142 16%
BW5 18%
BW6 48 144 25%
BW5 INDICATION @ -0.78" 14%
BW5 INDICATION @ 1.04" 74 144 14%
BW5 16%
BW6
SIG Eddy Currcnt 12 Month Special Report Page 15 of 26 Continuation of S/G #1 ECT Indications:
ROW LINE
%THRU WALL LOCATION COMMENTS 78 144 27 %
BW4 INDICATION @ -0.83" 25%
BW4 INDICATION @ 0.45" 14 %
BW5 INDICATION @ -0.56" 31 %
BW5 INDICATION @ 0.03" 27 %
BW6 INDICATION @ 0.88" 84 144 23%
9H INDICATION @ -1.38" 51 145 14 %
8H 95 145 19%
9C
\\
81 147 13%
BW6 83 149 19%
BW7 60 150 16%
2C 1
155 18%
TSC 44 156 17 %
BW5 79 161 11 %
BW9 4
166 26 %
TSC INDICATION @ 22.18" STEAM GENERATOR #2 The Eddy Current Testing Bobbin Coil Inspection of 2,375 tubes in S/G #2 resulted in the following analysis of indications:
75 Tubes Less Than 20% Thru Wall 78 Tubes Greater Than or Equal to 20% But Less Than 40% Thru Wall O No Tubes Greater Than or Equal to 40% Thru Wall
S/G Eddy Current 12 Month Special Report Page 16 of 26 Continuation of S/G #2 ECT Indications:
S/G #2100% (9,003 Tubes) Top of the Tubesheet inspection of Expansion Transition Region resulted in the following analysis of Single Circumferential Indications (SCis) and Possible Loose Perts (PLPs):
1 Tubes with a Single Circumferential Indication maximum 20% through wall with 40 to 70 arc extents. SCI was Stabilized on the Hot Leg and Plugged in both Plenums.
2 Tubes with Secondary Possible Loose Parts (PLPs) were Stabilized and (Plugged)
The following tube listing identifies the indications as a result of Eddy Current Testing tubes in S/G #2 :
1 ROW LINE
%THRU WALL LOCATION COMMENTS 10 3
15%
BW5 33 15 8%
BW5 41 15 31 %
TSC INDICATION @ 8.80" 44 16 32 %
BW5 INDICATION @ -1.26" i
9%
BW5 INDICATION @ 0.64" 48 18 26 %
BW5 INDICATION @ -0.94" 8%
BW5 INDICATION @ 0.75" 8
20 10%
2C 48 20 34 %
BW5 INDICATION @ 0.93" 90 20 16%
9H 76 24 13%
BW4 16%
BW5 14%
BW6 I
i
S/G Eddy Current 12 Month Special Report Page 17 of 26 4
Continuation of S/G #2 ECT Indications:
ROW LINE
%THRU WALL LOCATION COMMENTS 19 25 19%
BWS INDICATION @ -1.04" 13%
BW5 INDICATION @ 1.04" 69 25 6%
BW6 79 25 12%
BW9 80 26 8%
8C 81 27 12%
BW6 80 28 12%
BW6 103 29 16%
7C 94 30 14%
9C 106 30 18%
3C 46 32 17 %
BW5 81 33 12%
BW9 46 34 14%
BW5 63 35 3%
7H 3%
3C 67 35 23%
SH.
INDICATION @ 33.42" 69 35 8%
BW5
]
83 35 21 %
BW5 INDICATION @ 0.79" 11 %
BW7 INDICATION @ -0.93" 9%
BW7 INDICATION @ 0.76" 84 36 9%
BW4
4 S/G Eddy Currcnt
.12 Month Special Report Page 18 of 26 Continuation of SIG #2 ECT Indications.
j l
ROW LINE
%THRU WALL LOCATION COMMENTS 43 37 12%
BW5 INDICATION @ -0.66" 18%
BW5 INDICATION @ 0.94" 77 37 23%
BW5 INDICATION @ 0.59" 14%
BW4 INDICATION @ 0.79" 8%
BW5 INDICATION @ -0.79" 44 40 6%
BW5 94 40 17%
BW3 18%
BW6 25 43 21 %
6H INDICATION @ 36.42" 80 44 27 %
BW4 INDICATION @ -1.03" 39 45 10%
1C 44 48 19%
BW5 74 48 25%
BW4 INDICATION @ 0.84" 21 %
BW5 INDICATION @ 0.90" 80 48 14%
BW5 77 49 16%
BW5 81 49 23%
BW5 INDICATION @ 0.93" 21 %
BW6 INDICATION @ -0.74" 12%
BW6 INDICATION @ 0.87" 44 50 13%
BW5 66 50 27 %
BW9 INDICATION @ 1.41" 49 51 38%
BWS INDICATION @ 1.00" 134 52 14%
BW1 l
S/G Eddy Current
.12 Month Special Report Page 19 of 26 Continuation of S/G #2 ECT Indications:
ROW LINE
%THRU WALL LOCATION COMMENTS 107 55 26%
BW5 INDICATION @ -0.06" 21 %
BW5 INDICATION @ 0.67" 14%
BW6 INDICATION @ -0.89" 82 56 33 %
BW5 INDICATION @ -0.86" 94 56 7%
BW4 110 56 28%
7C INDICATION @ 10.44" 73 57 29%
BW6 INDICATION @ 0.98" 77 57 17%
BW5 81 57 21 %
BW4 INDICATION @ -0.82" 135 57 6%
BW8 48 58 32 %
BW5 INDICATION @ -0.98" 96 58 SCI TSH SINGLE CIRCUMFERENTIAL INDICATION @ 0.07".
STABILIZED & PLUGGED w/INCONEL-690 MECH. IN EACH PLENUM.
45 59 19%
3C 70 60 17 %
BW9 77 61 9%
BW4 INDICATION @ -1.00" 19%
BW4 INDICATION @ 0.85" 133 61 21 %
BW5 INDICATION @ 0.55" 11 %
BW3 INDICATION @ 0.62" 137 61 9%
9C
S/G Eddy Current
.12 Month Special Report Page 20 of 26 1
Continuation of SIG #2 ECT Indications:
ROW LINE
%THRU WALL LOCATION COMMENTS l
46 64 31 %
BW5 INDICATION @ 0.81" 89 65 29 %
BW5 INDICATION @ -0.95" 120 66 15%
10H 46 68 22 %
BW5 INDICATION @ -0.81" 27 %
BW5 INDICATION @ 0.73" 43 69 34 %
BW5 INDICATION @ 1.04" 11 %
BW5 INDICATION @ -0.70" 141 69 20%
BW7 INDICATION @ 0.53" I
48 70 18%
BW5 INDICATION @ -0.73" 15%
BW5 INDICATION @ 0.93" l
77 71 11 %
BW4 16%
BW5 92 72 9%
BW5 120 72 19%
10H 50 74 20 %
8H INDICATION @ -0.74" 13%
8C INDICATION @ -1.49" 49 75 19%
8H 83 75 31 %
2H INDICATION @ 28.96" 111 75 27 %
6H INDICATION @ 11.34" 141 75 9%
BW1 121 77 19%
BW5 145 77 13%
BW8
SIG Eddy Current 12 Month Special Report Page 21 of 26 Continuation of S/G #2 ECT Indications:
4 ROW LINE
%THRU WALL LOCATION COMMENTS 102 78 8%
BW3 146 78 27 %
BW9 INDICATION @ 1.91" 70 80 8%
BW4 146 80 19%
BW9 62 82 26%
TSH INDICATION @ 15.08" 4
146 82 26%
BW1 INDICATION @ 1.52" i
145 83 22%
BW1 INDICATION @ 1.75" 1
54 84 23%
BW1 INDICATION @ -1.66" 146 84 28 %
BW9 INDICATION @ 1.61" 97 85 13%
BW3 12%
BW4 105 85 28%
BW6 INDICATION @ -0.86" 145 85 26 %
BW8 INDICATION @ -0.94" 28%
BW8 INDICATION @ 0.72" i
147 85 29%
BW7 INDICATION @ 0.61" 19%
BW6 INDICATION @ 0.86" 56 86 25 %
BW9 INDICATION @ -1.55" 14%
BW9 INDICATION @ 1.69" 144 86 32%
BW1 INDICATION @ 1.75" 81 87 15%
BW6
'l
S/G Eddy Current 12 Month Special Report Page 22 of 26 4
Continuation of SIG #2 ECT Indications:
ROW LINE
%THRU WALL LOCATION COMMENTS 147 87 25%
BW2 INDICATION @ -0.94" 9%
BW7 INDICATION @ -0.78" 21 %
BW7 INDICATION @ 0.44" 17%
BW8 INDICATION @ -1.11" 34 %
BW8 INDICATION @ -0.25" 136 88 36 %
5H INDICATION @ 0.57" 146 88 36 %
BW1 INDICATION @ 1.39" 22 %
BW9 INDICATION @ 1.25" 103 89 34 %
6C INDICATION @ 16.81" i
145 89 20%
BW8 INDICATION @ -0.89" 19%
BW8 INDICATION @ 0.83" 73 91 33%
TSH INDICATION @ 0.74" 147 91 24 %
BW8 INDICATION @ 0.00 18%
BW8 INDICATION @ -0.83" 13%
BW8 INDICATION @ 0.64" 145 93 14%
BW9 145 95 13%
BW8 12%
BW9 66 96 18%
BW1 106 96 25%
7C INDICATION @ 28.38" 81 97 24 %
BWS INDICATION @ 0.72" 15%
BW6 INDICATION @ -0.59" 103 97 6%
BW4 50 100 21 %
8H INDICATION @ -1.31'
S/G Eddy Curr:nt 12 Month Special Report i
Page 23 of 26 Continuation of SIG #2 ECT Indications:
ROW LINE
%THRU WALL LOCATION COMMENTS f
49 101 12 %
8H 145 101 8%
BW3 50 102 23 %
8H INDICATION @ -1.08" 69 103 36 %
BW4 INDICATION @ 0.00" 25%
BW6 INDICATION @ -0.72" 143 103 9%
BW9 1
145 103 13%
BW9 92 106 34 %
1H INDICATION @ 2.83" 114 106 19%
BW4 l
144 106 26%
BW1 INDICATION @ 2.14" l
113 109 19%
BW3
.137 111 9%
BW8 56 112 27 %
4H INDICATION @ 1.57" 135 113 25%
BW8 INDICATION @ -0.14" 30 114 23%
3C INDICATION @ 25.77" 77 117 23%
BW6 INDICATION @ -0.69" 133 117 26 %
BW3 INDICATION @ 0.85" 74 118 25%
BW4 INDICATION @ -0.60" 30 %
BW5 INDICATION @ -0.86" 84 120 15%
S/G Eddy Current
.12 Month Special Report Page 24 of 26 Continuation of SIG #2 ECT Indications:-
ROW LINE
%THRU WALL LOCATION COMMENTS 83 121 26%
BW4 INDICATION @ -0.92" 5%
BW3 INDICATION @ -0.75" 38 %
BW5 INDICATION @ -0.03" 30%
BW6 INDICATION @ -0.64" 50 122 12%
8H 37 125 20%
BW5 INDICATION @ -0.58" 41 127 22 %
BW5 INDICATION @ 1.06" 131 127 17%
BW1 82 128 27 %
BW5 INDICATION @ 0.92" 17 %
BW4 INDICATION @ 0.89" 20%
BW6 INDICATION @ 0.92" 49 131 37 %
BW5 INDICATION @ -0.61" PREVENTIVELY PLUGGED w/ Mech.
INCONEL-690 125 133 13%
BW4 124 134 17 %
10C 12%
7C 18%
6C 41 139 18%
BW5 16 140 26 %
BW1 INDICATION @ -0.92" 37 141 11 %
BW5 109 141 19%
BW5 45 143 36 %
BW5 INDICATION @ 0.56"
SIG Eddy Current 12 Month Special Report i
Page 25 of 26 i
Continuation of S/G #2 ECT Indications:
ROW LINE
%THRU WALL LOCATION COMMENTS 105 143 21 %
BW3 INDICATION @ 0.72" i
15%
BW6 INDICATION @ -0.72' a
45 145 28%
BW5 INDICATION @ -0.91" 24 %
BW5 INDICATION @ 0.75" 52 146 16%
4C j
47 147 22 %
BW5 INDICATION @ 0.70" 14%
BW5 INDICATION @ -0.92" 91 147 18%
9C j
41 149 27 %
BW5 INDICATION @ 0.86" 43 149 21 %
BW5 INDICATION @ 0.89" 49 149 27 %
BW5 INDICATION @ 0.89" 73 149 VOL TSH VOLUMETRIC INDICATION
@ 0.04" DUE TO PLP.
STABILIZED & PLUGGED w/INCONEL-690 MECH. IN EACH PLENUM.
101 149 21 %
9C INDICATION @ -1.00" 22 %
9C INDICATION @ 0.77" 72 150 VOL TSH VOLUMETRIC INDICATION
@ 0.69" DUE TO PLP.
STABILIZED & PLUGGED w/lNCONEL-690 MECH. IN EACH PLENUM.
37 155 21 %
BWS INDICATION @ -0.81" 49 155 36 %
BW5 INDICATION @ 0.85"
S/G Eddy Current 12 Month Special Report Page 26 of 26 Continuation of SIG #2 ECT Indications:
l ROW LINE
%THRU WALL LOCATION COMMENTS 37 157 21 %
BW5 INDICATION @ -0.83" 14 %
BW5 INDICATION @ 0.89" 38 158 15%
BW5 70 160 18%
BC 41 167 20%
BW5 INDICATION @ 0.92" 45 167 24 %
BW5 INDICATION @ -0.72" l
1 175 18%
1H 4
11 175 19%
BW1 4
PLANT CONTACT i
J.E. Howard Manager Procurement / Programs (504) 739-6327 1
i