ML20237J439
| ML20237J439 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 01/08/1987 |
| From: | Thornton A BALTIMORE GAS & ELECTRIC CO. |
| To: | Strosnider J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| NUDOCS 8708260168 | |
| Download: ML20237J439 (2) | |
Text
-
f.
A*4 y.
E / t'itNRr GAS AND ;
ELECTRIC ?
w CHARLES CENTER. P.O. BOX 1475 B ALTIMORE, MARYLAND 21203 l
f4VCLE AR Ef43tNEERING SERVICEE DEF AEit/Ern c4.vte eve rs vnt65 Pon'ts e6s to M87f' *, M A D
- La *.7 2('f ! ?
L January 8,1967 U. S. Nuclear Regulatory Commission l
Region I l
631 Park Avenue King of Prussia, PA 19406 l
ATTENTION:
Mr. Jack R. Strosnider, Acting Chief l
Materials and Processes Section Division of Reactor Safety
SUBJECT:
Calvert Cliffs Nuclear Power Plant Unit Nos.1 & 2; Docket Nos. 50-317 & $0-318 Analysis of No.12A Reactor Coolant Pump Shaf t Axial Cracking
REFERENCE:
(a)
Teleconference between Messrs. 3. R. Strosnider and H.1. Gregg -
(NRC), and members of our staff (BG&E)'on January 7,1987, regarding the cracks on No.12A Reactor Coolant Pump Shaf t Gentlemen:
This is in response to Reference (a). The two reports you requested are attached for your review., " Fracture Analysis of Baltimore. Gas and Electric Calvert Cliffs Pump Shaf t," is the result of a joint effort between Borg-Warner Industrial Products, Inc. and Babcock and Wilcox. Please note that this report is a preliminary draft. Although no i
affadavit'is enclosed, due to the need to get this information to you quickly, we request that the information be treated as proprietary material.
We recognize that the requirements of 10 CFR 2.790 are not met, however, we have received verbal permission -
from Borg-Warner to release the material to you.
l is the results of the Southwest Research Institute's eddy current test-perf ormed on the shaf t removed from No.12A Reactor Coolant Pump.
1
(
l 8708260160 070108 Hool
'.]
PDR ADOCK 05000317 P
PDR r O eww n
-1 I
j 8.t*
P. I\\ e 51! (%" f l? ! }Ff Acn.o, s. 4 sa I us L We intena tu followup inis inf or nation next week with a summary of our evaluation to date of the attached reports, i
Very truly yours, I
l
)
-ff,9fjy%v.- -
A. R. Thornton General Supervisor Plant and Project Engineering ART /SR C/ dim Attachinents
'I cc:
WITHOUT ATTACHMENTS D. A. Brune, Esquire i
- 3. E. Silberg, Esquire l
S, A. McNeil, NRC T. Foley, NRC j
I Eric Fiske I
_ _ _ _ _ _ _ _ _ _ _ _ - -