ML20002A244
| ML20002A244 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 11/01/1980 |
| From: | Lundvall A BALTIMORE GAS & ELECTRIC CO. |
| To: | Clark R Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8011050416 | |
| Download: ML20002A244 (2) | |
Text
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B ALTIMORE G AS AND ELECTRIC COMPANY l
n r>.o. s o x 14 7 s
<3 D ALTIMoR E, M A RY L AND 21203 t
AR, HUN eslU N DVALL. J n l
Vict Pas s.ctiet flovember 1,1980 so....
"_j Office of Nuclear Reactor Regulation U. S. Nuc! car Regulatory Commission Washington, D. C. 20555 ATTENTION:
Mr. R. A. Clark, Chief Operating Reactors Branch #3 Division of Licensing
SUBJECT:
Calvert Cliffs Nuclear Power Plant Unit No.1, Docket No. 50-317 Amendment to Operating License DPR-53 Fif th Cycle License Application Responses to NRC Staff Questions Gentlemen:
Enclosed are our reponses to questions posed by NRC staff on the subject application.
Very truly yours, BALTIMORE GA_S AND ELECTRIC COMP NY bc //
!',. f. u hvYli, Jr.
A E.
Vice Pre ident - Suppl i
AEL/WJL/mit Copy To:
J. A. Biddison, Esquire (w/out Encl.)
G. F. Trowbridge, Esquire (w/out Encl.)
Messrs.
E. L. Conner, Jr., NRC P. W. Kruse, CE Enclosure (1): 40 copies 8'011050hh b
y 1
J
Question 1 What inspections of CEA and CEA ouide tube sleeves will be performed at the end of Unit 1, Cycle 4?
Response
Based on previous CEA and CEA quide tube exaninations, the following inspection program will be conducted. This insnection will confirn satisfactory use of sleeved guide tubes and CEAs for future cycles.
1.
CEA Exaninations Eddy current testinq of 3 to 5 CEAs usinq bobbin and pancake techniques.
CEA Identity Core Position 1C Lll 18 S20 35 J4 22 G3 1A F2 CEAs 1C,lA &l8 were anonq 5 CEAs that were eddy current tested and visually examined by TV after Cycle 3.
CEA 1 C is located in fuel assenbly BT03 which is in the core center and is unsleeved.
CEAs 35 and 22 were selected as being from potential high wear positions based on Unit 1, Cycle 1/ Cycle 2 guide tube wear data.
2.
Fuel Assembly Insoections Eddy current testing (both bobbin and pancake) of unsleeved, discharqed fuel assembly BT03 guide tubes.
Eddy current testing (bobbin only) of up to 5 discharged sleeved D assemblies that resided under CEAs in moderate to hiqh wear locations for 2 cycles.
These assemblies include:
D015, 0028, D036, D038 and D040. This exam may be optional based on the results of a similar inspection at flillstone II.
.