ML20012E588
| ML20012E588 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 03/21/1990 |
| From: | Bradham O SOUTH CAROLINA ELECTRIC & GAS CO. |
| To: | Ebneter S NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| NUDOCS 9004050439 | |
| Download: ML20012E588 (3) | |
Text
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Don 8 V Prhs i
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JenkievHO, Sc 20065 Nuclest Operations l
,j (803) 345 4040 l
SCE&O March 21, 1990 fLr3 g/
Mr. S. D. Ebneter Regional Administrator i
U. S. Nuclear Regulatory Commission i
Region 11. Suite 2900 101 Marietta Street N. W.
l Atlanta, Georgia 30323 J
Subject:
Virgil C. Summer Nuclear Station j
Docket No. 50/395 l
Operating License No. NPF-12 Steam Generator Inspection Plan i
Dear Mr. Ebneter:
In a meeting with NRC representatives at Region II Headquarters on March 12, l
1990. South Carolina Electric & Gas Company (SCE&G) presented a steam generator inspection plan for the upcoming outage. The handout and one of j
the overhead slides showed that all tubes in all steam generators would be
'i inspected from the cold leg (outlet) side. This information was incorrect.
1 A corrected slide is attached to clarify the SCE&G current plans.
]
SCE&G had always planned to perform ECT inspection of all tubes in the hot leg tubesheet. area, plus a significant number of full length tube inspections (20-25%) to ensure adequate assessment of the steam generator condition. For scheduling purposes SCE&G initially scheduled the inspection from the cold leg so that other activities could be conducted concurrently in the hot leg.
By performing the inspection in this manner, all tubes would be inspected over their entire length, as presented in the March 12 meeting. As detailed j
outage planning progressed, it was determined that inspectibn from the hot i
leg-(inlet) side was more expeditious and, therefore, the schedule was modified.
In doing this, data which would have been gathered incidental to traversing the tube to access the hot leg tubesheet region (from the cold leg
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-channel head) was climinated but the originally planned inspeccion scope was
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implementable.
Please be assured that SCE&G will complete the originally planned inspection i
scope. That scope includes the following:
1 100% of the hot leg tubesheet region for each steam generator.
23% of the total number of tubes will receive inspections from the hot leg over the U-bend to the top support plate of the cold leg.
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PDC go e WYW
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6 ic Mr. S. D. Ebneter t
March 21, 1990 i
Page 2 of 2 i
We regret any confusion that use of this obsolete slide may have caused.
If you have any questions, please call at your convenience.
Very truly yours, I
[
- 0. S. Bradham i
t ARR/OSB: led Attachment c:
D. A. Nauman/0.W. Dixon,-]r./T. C. Nichols, Jr.
E. C. Roberts R. V. Tanner
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General Managers J. J. Hayes, Jr.
C. A. Price R. B. Clary J. R. Proper K. E. Nodland J. C. Snelson R. L. Prevatte L. P. Modenos J. B. Knotts, Jr.
File (810.21) l l
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STEAM GENERATOR PROJECT 1
RF 5 WORKSCOPE J
SGA SGB SGC TASK HL CL HL CL HL CL TUBE ECT 4394*
4167*
4372*
7 PLUG ECT 275 394 302 110 PULL PLUG *
- 192 0
51 0
279 0
PAP 5
0 111 0
2 0
PLUG *
- 299 107 148 97 403 124
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SLEEVE *
- 100 100 STABILIZE U-BEND 1
1 5
VERIFICATION Yes Yes Yes Yes Yes Yes INSPECTION l
FOREIGN OBJECT
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SEARCH & RETRIEVAL IN SIG "C" l
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- Approximately 23% of these tubes willbe inspected from the hot leg tubesheet over the U-bend to the top support plate of the cols' leg.
- Projected Numbers.
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