ML20198K105
| ML20198K105 | |
| Person / Time | |
|---|---|
| Site: | Maine Yankee |
| Issue date: | 05/23/1986 |
| From: | Wenzinger E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Randazza J Maine Yankee |
| Shared Package | |
| ML20198K111 | List: |
| References | |
| NUDOCS 8606030341 | |
| Download: ML20198K105 (2) | |
See also: IR 05000309/1986005
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MAY 2 31986
Docket / License: 50-309/DPR-36
Maine Yankee Atomic Power Company
ATTN: Mr. J.B. Randazza
Vice President
Nuclear Operations
83 Edison Drive
Augusta, Maine
04336
Gentlemen:
Subject:
Inspection Report No. 50-309/86-05
This transmits the March 30 - May 10, 1986 routine inspection findings of Messrs.
C. Holden, J. Robertson, and D. Limroth at the Maine Yankee Atomic Power Plant,
Wiscasset, Maine.
Those findings were based on observations of activities, inter-
views, and document reviews, and have been discussed with Mr. Garrity of your staff.
Within the scope of this inspection, no violations were observed. We are concerned,
however, that continuing problems with the feedwater control system are challenging
safety systems. Following corrective maintenance to the feedwater header pressure
controller for the steam driven feedwater pump, similar problems involving the
interaction of the pressure controller with the governor necessitated an emergency
transfer to the electr.c driven feedwater pumps ten days later.
We will continue
to follow your activities to improve secondary plant reliability.
Your decision to remain shutdown on April 17 and 18, 1986 until the #3 inverter
was repaired and not operate the plant with the 120 VAC vital buses cross-connected
was a conservative decision on the part of your management team which I enthusias-
tically endorse.
We received your letter dated March 4,1986, which provides a response to our
February 4, 1986 Inspection Report No. 50-309/85-34.
Thank you for informing us
of the corrective and preventative actions documented in your letter.
These ac-
tions will be examined during a future inspection of your program.
No reply to this letter is required.
Your continued cooperation with us in this
matter is appreciated.
Sincerely,
&&olaal signed agg,
Edward C. Wenzinger, Chief
Projects Branch No. 3
Division of Reactor Projects
Enclosure:
NRC Region I Inspection Report No. 50-309/86-05
8606030341 860523
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C.E. Monty, President
C.D. Frizzle, Assistant Vice President / Manager of Operations
J.H. Garrity, Plant Manager
P.L. Anderson, Project Manager
G.D. Whittier, Licensing Section Head
J.A. Ritsher, Attorney (Ropes and Gray)
Public Document Room (PDR)
Local Public Document Room (LPDR)
Nuclear Safety Information Center (NSIC)
NRC Resident Inspector
State of Maine (2)
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Region I Docket Room (with concurrences)
Management Assistant, DRMA (w/o encl.)
DRP Section Chief
M. McBride, RI, Pilgrim
H. Eichenholz, SRI, Yankee
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