ML20151V679
| ML20151V679 | |
| Person / Time | |
|---|---|
| Site: | Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png |
| Issue date: | 04/21/1988 |
| From: | Bettenhausen L NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Mroczka E CONNECTICUT YANKEE ATOMIC POWER CO. |
| Shared Package | |
| ML20151V682 | List: |
| References | |
| NUDOCS 8805030143 | |
| Download: ML20151V679 (2) | |
See also: IR 05000213/1988003
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Docket / License:
50-213/DPR-61
Connecticut Yankee Atomic Power Company
ATTN: Mr. E.'J. Mroczka
Senior.Vice Fresident - Nuclear
Engineering and Operations
P. O. Box 270
Hartford, Connecticut
06141-0270
Gentlemen:
Subject: Resident Inspection 50-213/88-03 (3/1/88 - 4/4/88)
This transmits the findings of the above subject NRC inspection of the Haddam Neck
Plant by Mr. J. T. Shediosky and Ms. A. A. Asars. No. violations were identified
no reply to this letter is required.
The inspection findings have been discussed
with Mr. D. B. Miller of your staff.
During this inspection period,. your- staff detected an error in the Emergency Core
Cooling. System flow delivery curves, which have been used in the Large Break Loss
of Coolant Accident analysis since 1971. Discovery of this error will allow more
accurate modeling of plant response to postulated accident conditions. Also, we
noted that your thorough approach to upgrade the plant safety analysis productively
-questioned the older . accepted calculations which led to detection of this error.
Your cooperation with us is appreciated.
Sincerely,
OrJgla33 Signed By:
Lee;f. Bettenhennes
Lee H. Bettenhausen, Chief
Projects Branch No. 1
Division of Reactor Projects
Enclosure: NRC Region I Report 50-213/88-03
cc w/ enc 1:
W. D. Romberg, Vice President, Nuclear Operations
D. B. Miller, Station Superintendent
D. O. Nordquist, Director of Quality Services
R. M. Kacich,-Manager, Generation Facilities Licensing
Gerald Garfield, Esquire
Public Document Room (POR)
local Public Document Room (LPDR)
Nuclear Safety Information Center (NSIC)
NRC Resident Inspector
State of Connecticut
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