ML20210A205

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Forwards Insp Rept 50-423/86-35 on 861118-870105.No Violations Noted.Written Schedule for Unresolved Item Re Environ Qualification of Containment High Radiation Monitors Requested within 90 Days
ML20210A205
Person / Time
Site: Millstone Dominion icon.png
Issue date: 01/27/1987
From: Wenzinger E
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To: Mroczka E
NORTHEAST NUCLEAR ENERGY CO.
Shared Package
ML20210A209 List:
References
NUDOCS 8702060431
Download: ML20210A205 (2)


See also: IR 05000423/1986035

Text

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JAN 2 71987

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Docket / License: 50-423/NPF-49

Northeast Nuclear Energy Company

ATTN: Mr. Edward J. Mroczka

Senior Vice President-Nuclear

Engineering and Operations Group

P.O. Box 270

Hartford, Connecticut 06101-0270

Gentlemen:

Subject: Millstone 3 Routine Inspection 50-423/86-35 (11/18/86-1/5/87)

This transmits the report of the above subject inspection by Messrs. J. Shedlosky

and F. Casella of this office. No violations were cited. The inspection findings

have been discussed with Messrs. S. Scace and C. Clement of your staff.

A Special Inspection also was conducted during this inspection period. That in-

spection (Report 50-423/86-39) addresses removal of a safeguards pump cooler from

service.

Thank you for your November 13, 1986 response to Inspection 50-423/86-27. These

Post Accident Sampling System items will be reviewed during a future inspection.

We have a concern about a previously identified unresolved item on environmental

qualification of the Millstone 3 containment high radiation monitors. The origin-

ally installed Kaman monitors have experienced mineral insulated detector cable

problems. Two fully qualified General Atomics monitors were installed as an in-

terim measure. Millstone 3 Inspection Report 86-33, Section 4, identified this

issue as having been unresolved since July 1985 (Inspection 85-34). No new data

is available for NRC review yet. So that we can evaluate this matter further,

i

within 90 days of receipt of this letter, please provide us your written plan and

schedule for resolving this issue. If you plan to qualify the Kaman installation,

i please address in your response the assurance of functional capability of the

mineral insulated cable and connector assembly. Related aspects include handling

requirements for the assembly and the relaxation of connector torque due to mois-

i

ture intrusion (noted in the Kaman Report).

Thank you for your cooperation.

Sincerely,

pical signd 37f

Edward C. Wenzinger, Chief

Projects Branch No. 3

Division of Reactor Projects

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8702060431 860127

ADOCK 05000423

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Northeast Nuclear Energy Company 2

Enclosure: NRC Region I Inspection Report 50-423/86-35

cc w/ encl:

W. D. Romberg, Vice President, Nuclear Operations

S. E. Scace, Station Superintendent

E. R. Foster, Director of Generation Construction Department

R. M. Kacich, Manager, Generation Facilities Licensing

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D. O. Nordquist, Manager of Quality Assurance

V. Papadopoli, Supervisor of Engineering Assurance

Public Document Room (PDR)

Local Public Document Room (LPDR)

Nuclear Safety Information Center (NSIC)

NRC Senior Resident Inspector

State of Connecticut

bec w/ enc 1:

Region I Docket Room (with concurrences)

Management Assistant, DRMA (w/o enc 1)

DRP Section Chief

L. Prividy, RI, BV-2

T. Rebelowski, SRI, Millstone 1&2

B. Doolittle, LPM, NRR

R. Bores, DRSS

M. Shanbaky, DRSS

C. Anderson, DRS

J. Strosnider, DRS

R. Summers, DRP

A. Shropshire, CAA

RI:DRP RI: P

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Shedlosky/meo

1/13/87

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