ML20029A216
| ML20029A216 | |
| Person / Time | |
|---|---|
| Site: | Maine Yankee |
| Issue date: | 01/28/1991 |
| From: | Jerrica Johnson NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Frizzle C Maine Yankee |
| Shared Package | |
| ML20029A217 | List: |
| References | |
| NUDOCS 9102050071 | |
| Download: ML20029A216 (4) | |
See also: IR 05000309/1990025
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Docket No. 50-309
Maine Yankee Atomic Power Company
ATEN: Mr. C. D. Frizzle
President
83 Edison Drive
Augusta, Maine 04336
Gentlemen:
Subject:
Resident Inspection 50-309/90-25 (11/28/90 - 1/9/91)
This transmits the report of the above subject inspection by of Messrs. C. Marseball and
R. Freudenberrer at the Maine Yankee Atomic Power Plant, Wiscasset, Maine. Those findings
have been discussed with Mr. Blackmore of your staff.
Alertness and prompt actions by your Chemistry and Operations personnel led to the timely and
safe shutdown of Maine Yankee due to steam generator tube leakage on December 17, 1990.
We assessed your Chemistry and Operations staffs' performance in this matter as superior.
On the other hand, this inspection also noted that a lack of sufficiently questioning approach to
other potential problems was indicated by a management failure to credit radiation monitor
alarms, by an operator assumption that a service water radiation monitor alarm was due to
erroneous instrumentation, and by a reactor engineer assumption that core differential pressure
indications were due to instrument failure. Please review these matters and identify your
conclusions and any corrective actions to our senior resident inspector by March 15, 1991.
The enclosed report further noted an apparent violation for an unreviewed modification of a
facility procedure through use of Day Orders. Please reply to this matter in accordance with the
enclosed Notice of Violation.
Thank you for your cooperation in these matters.
Sincerely,
04'inal SIP ^d W
39n R, 13hn300
Jon R. Johnson, Chief
Projects Branch No. 3
Division of Reactor Projects
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OFFICIAL RECORD COPY
9102050071 910120
ADOCK 05000309
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Maine Yankee Atomic Power Company
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Enclosures:
1.
2.
NRC Region I Inspection Report 50-309/90-25
cc w/encls:
J. Randazza, Assistant Chairman of the Board
E. T. Boulette, Vice President Operations
G. D. Whittier, Vice President, Licensing and Engineering
J. D. Firth, Vice President, Public and Governmental Affairs
R. W. Blackmore, Plant Manager
S. E. Nichols, Manager, Nuclear Engineering and Licensing
P. L. Anderson, Project Manager, (Yankee Atomic Electric Company)
J. A. Ritsher, Attorney (Ropes and Gray)
K. Abraham,' PAO (2 copies)
U. Vanags, Maine State Planning Off' ice
P. Brann, Assistant Attorney General
Maine Yankee Hearing Sc vice List
Public Document Room (PDR)
Local Public Document Room (LPDR)
Nuclear Safety Information Center (NSIC)
NRC Resident inspector
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Maine Yankee Atomic Power Company
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JAN 2 81991
bec wiencls:
Region I Docket Room (with concurrence)
Management Assistant, DRMA (w/o encl.)
DRP Section Chief
E. Trottier, LPM, NRR
C. Anderson, DRS (see Details 3.1,5.2)
H. Gray, DRS (see Details 5.1, 6.3)
R. Keimig, DRS (see Detail 4)
bec w/ overview only:
C. Hehl, DRP
W. Hodges, DRS
J. Wiggins, DRP
J. Joyner, DRSS
J. Durr, DRS
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MAINE YANKEE HEARING SERVICE LIST
Mr. Charles B. Brinkman
Mr. G. D. Whittier
Manager, Washington Nuclear Operations
Executive Assistant to the President
Combustion Engineering, Inc.
Maine Yankee Atomic Power Company
12300 Twinbrook Parkway, Suite 330
83 Edison Drive
Rockville, Maryland 20852
Augusta, Maine 04336
John A. Ritsher, Esq.
State Planning Officer
Ropes & Gray
Executive Department
225 Franklin Street
189 State Street
Boston, Massachusetts 02110
Augusta, Maine 04330
Dr. E. T. Boulette, Vice President
Mr. Robert W. Blackmore
Operations
Plant Manager
Maine Yankee Atomic Power Company
Maine Yankee Atomic Power Company
P. O. Box 408
P. O. Box 408
Wiseasset, Maine 04578
Wiscasset, Maine 04578
First Selectman of Wiseasset
Mr. P. L. Anderson, Project Manager
Municipal Building
Yankee Atomic Electric Company
U.S. Route 1
580 Main Street
Wiscasset, Maine 04578
Bolton, Massachusetts 01740-1398
Resident Inspector
Regional Administrator, Region I
Maine Yankee Atomic Power Station
U.S. Nuclear Regulatory Commission
U.S, Nuclear Regulatory Commission
475 Allendale Road
P.O. Box E
King of Prussia, Pennsylvania 19406
Wiscasset, Maine 04578
OFFICIAL RECORD COPY