ML20034C598
| ML20034C598 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 04/25/1990 |
| From: | Tucker H DUKE POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9005040194 | |
| Download: ML20034C598 (11) | |
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,140. Box 33198 Iice lyesident s
Charlotte, N C 28:42 Nacitw lyoduction (761)313 4.531 s
i DUKEPOWER April 25, 1990 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C.
20555 i
Subject:
Catawba Nuclear Station,' Unit 2'-
Docket'No.'50-414 Steam Generator Inspection Report
Dear Sir:
+
~
Pursuant to Technical Specification 1/4.4.5.5.b, the following infor n tion is submitted:
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1.
The following quantity of tubes was inspected from the-inlot side of s
the steam generator:
Tubes Inspected Steam Generator Full Length Parti.M Le3 tl r
A 1456.
'1456-l B
1519-
.1522 r
C 1443 1446 D
1542 1542'
- 2. 'Thefollowinginformationissubmittedconcernink: tube'indicationsof'.
imperfections.
(The attached lists identify the tubes with?
imperfections, their location and th31r' size.)-
7 Steam Generator Attachment 1
A 1
B 3'
C 5.~
g D
7 1
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Document Control Desk Page 2 A'pril 25, 1990 3.
The following quantities of tubes were removed from service.
(The tubes are identified in the attachments):
Steam Generator Number of Tubes Plunged Attachment A
2 2
B 5
4 C
1 6
D 0-Very truly yours,
/
Ital B. Tucker Milli-31/lcs xct Mr. S. D. Ebneter, ReBional Administrator U. S. Nuclear Regulatory Commission 101 Marietta St., NW., Suite 2900 Atlanta, Georgia 30323 Dr. K. N. Jabbour Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission One White Flint North Mail Stop 1 4112 5 Washington, D.C.
20555 Mr. W. T. Orders NRC Resident Inspector Catawba Nuclear Station
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/ e / [ ein** D!6 E - TibTiiTM) RTR, 3,0)stHH Thursday April 19,19?? OE:25 4#1 ***+et PArCCCK & WILCOX CO. ****** Cap 11 f 09 tap,fler,t: CAif40 (e Rr0 NIT 2 Steam Gererator: A '03/E 7JERY: ATTIOCENT 2 Ti3E5 PLIEED OW COL NTrE ICICATICN VOLLE VOLTS ELEVTJION INDEG 24 (A 23/E9 r50 P&3?L MECH' CTS-P 24 E3 03/03 870 PLLECID MECH CTS-P TOT 4L TUIE3 FDAS 2 r. TOTAL INDICATION 3 FMG 2 = TOTA'. T 3ES IN IN UT FILE = 4570 l 707 ( M,ES INSPECTED = 1A56 1 l 1 l t i 1 ) ~, i t 1 .I m c, -
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Steam Generator Inspection Reports Definition of Terms and or abbreviations Row location of tho tube Row = Column location of the tube Col = Inspection outage Outage = Type of imperfection or type of repair made to'the tube Indication = Imperfection percent thru wall penetration or type of plug Value = installed Measure of the amplitude of the imaerfection Volts = t The location of the imperfection r4ferenced to.the. listed-Elevation = tube support plate uor steam gt crator structure, or location of the plug The location of the imperfection in inches from the-Inches = elevation-00 (General) Outside diameter imperfection of the tube = Outside diameter wear type imperfection of the tube OD Wear = Outside diameter stress corrosion cracking-type OD SCC = imperfection of the tube Inside diameter primary water stress corrosion cracking Pri Crack = typa imperfection of the tube i ID (General) Inside diameter imperfection of the tube = Supplemental rotating pancake coil eddy current inspection 8X1 = Thru-wall penetration of the imperfection - TW = S/N Signal to noise ratio to small to reliability size. = AuB = Anti-vibration bar Hot leg tubesheet primary face HTS-P = HTS-S = Hot leg tubesheet secondary face Cold leg tubesheet primary face CTS-p = CTS-S Cold leg tubesheet secondary facs = Mech Mechanical plug = t-l / [ l 1 -aw -m y}}