ML20210A022
| ML20210A022 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 04/24/1987 |
| From: | Wenzinger E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Mroczka E NORTHEAST NUCLEAR ENERGY CO. |
| Shared Package | |
| ML20210A027 | List: |
| References | |
| NUDOCS 8705040328 | |
| Download: ML20210A022 (2) | |
See also: IR 05000245/1987004
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APR 2 4 W
Docket'Nos. 50-245; 50-336
Northeast Nuclear Energy Company
ATTN:
Mr.. Edward J. Mroczka
Senior Vice President - Nuclear
Engineering and Operations Group
P. O. Box 270
Hartford, Connecticut 06141-0270
Gentlemen:
Subject:
Routine Inspection 50-245/87-04; 50-336/87-05 (3/10/87 to 4/13/87)
This transmits the report of the above subject inspection of Millstone Units 1 and
2 by Messrs. T. Rebelowski and G. Grant of this office'. The inspection findings
have been discussed with Messrs. J. Stetz and J. Keenan of your staff.
No violations were identified.
However, Detail 6 of the enclosed report identifies
an operating reactor trip at Millstone 1.
In approximately one year,' this is the
third Unit 1 trip that is attributed to the reactor pressure control system.
The
first two trips were caused by equipment malfunctions in the Mechanical Pressure
Regulator (MPR). The most recent trip was caused by operator error when transfer-
ring control from the MPR to the Electrical Pressure Regulator (EPR).
Please re-
view these challenges to safety systems and inform me of_ your assessment and any
planned corrective measures within 90 days of receipt of this letter.
We also wish to call to your attention that multiple instances of eating while on
duty were observed within the red lines in the Unit 2 control room (Report Detail
3).
Although no inattention to duty was identified, eating within the red-lined
area is considered to have the potential for distracting personnel from their
operating duties. We recommend you review this practice for acceptability.
It
is our view that eating in the control room needs to be carefully controlled to
assure that the location and manner of conduct of the activity hazards neither
operator attentiveness nor the professional atmosphere.
Your cooperation with us is appreciated.
Sincerelyprisinal Signed Byg
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Edward C. Wenzinger, Chief
t
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Projects Branch No. 3
Division of Reactor Projects
Enclosure: NRC Region I Report 5 -245/87-04; 50-336/87-05
8705o40328 870424
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ADOCK 05000245
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APR 241987
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Northeast Nuclear Energy Company
2
cc w/ encl:
W. D. Romberg, Vice President, Nuclear Operations
S. E. Scace, Station Superintendent
D. O. Nordquist, Manager of Quality Assurance
R. M. Kacich, Manager, Generation Facilities Licensing
Gerald Garfield, Esquire
Public Document Room (PDR)
Local Public Document Roam (LPDR)
Nuclear Safety Information Center (NSIC)
NRC Resident Inspector
State of Connecticut
bcc w/ enc 1:
Region I Docket Room (with concurrences)
Management Assistant, DRMA (w/o encl)
DRP Section Chief
M. McBride, RI, Pilgrim
P. Swetland, SRI, Haddam Neck
J. Shedlosky, SRI, Millstone 3
J. Shea, LPM, NRR
R. Bores, DRSS
RI:DRP
RI RP
R :D P
Reb owski/meo
McCabe
Wnzinger
4/g/87
9 121
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0FFICIAL RECORD COPY