ML20212H159

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Forwards Insp Rept 50-219/86-33.Rept Documents Facts Associated W/Question Raised in Insp Rept 50-219/86-04 Re Acceptability of Hydraulic Control Unit Tube Steel Bottom Support Installations.Meeting Will Be Scheduled
ML20212H159
Person / Time
Site: Oyster Creek
Issue date: 01/13/1987
From: Kane W
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To: Fiedler P
GENERAL PUBLIC UTILITIES CORP.
Shared Package
ML20212H164 List:
References
NUDOCS 8701210292
Download: ML20212H159 (3)


See also: IR 05000219/1986033

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Docket No. 50-219

License No. DPR-16

GPU Nuclear Corporation

ATTN: Mr. P. B. Fiedler

Vice President and Director

Dyster Creek Nuclear Generating Station

P. O. Box 388

Forked River, New Jersey 08731

Gentlemen:

Subject: Inspection Report No. 50-219/86-33

This report documents the facts associated with a question raised in NRC Inspec-

tion Report 86-04 regarding the acceptability of hydraulic control unit (HCU)

tube steel bcttom support installations and expresses NRC concerns that have

arisen as a result of your response to the question.

As described in the enclosed report and in your Licensee Event Report (LER)86-022, 80 of 137 hydraulic control units have not been properly seismically

mounted since original construction. Your analysis of the HCU mounting, after

concerns were identified by NRC, determined that 80 hydraulic control units did

not meet seismic requirements defined in the original design basis of Oyster

Creek for Seismic Class I equipment. Although most of the quality standards

involved in present day construction were not explicitly required by the regula-

tory. agency during original plant construction, the conformance to design re-

quirements as specified on drawings has always been a requirement for good con-

struction and/or erection. This HCU problem remained unidentified until recently

when the installation was questioned by an NRC inspector.

We are concerned that this problem, as well as past deficiencies in pipe sup-

, ports and masonry block walls that were addressed by NRC Bulletins, appear to

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indicate a long-term need for a higher assurance of identification and resolu-

i

tion of such problems, through additional evaluations of the as-built plant

l against design requirements applicable to Oyster Creek.

We will contact you in the near future to schedule a meeting at Region I in

order to provide a forum to discuss these issues and provide you an opportunity

to explain actions you have taken or plan to take to address our concerns.

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GPU Nuclear Corporation 2

Your cooperation with us in these matters is appreciated.

Sincerely,

William F. Kane, Director

Division of Reactor Projects

Enclosure: NRC Region I. Inspection Report No. 50-219/86-33

cc w/ encl:

M. Laggart, BWR Licensing Manager ,

Licensing Manager, Oyster Creek

Public Document Room (PDR)

Local Public Document Room (LPDR)

Nuclear Safety Information Center (NSIC)

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NRC Resident Inspector

State of New Jersey

bec w/ encl:

Region I Docket Room (with concurrences)

Management Assistant, DRMA (w/o enc 1)

Section Chief, DRP

Robert J. Bores, DRSS

DRS Director

DRSS Director

W. Johnston, DRS

J. Durr, DRS

J. Wiggins, DRS

D. Holody

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GPU Nuclear Corporation 2

Your cooperation with us in these ma.tters is appreciated.

Sincerely,

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William F. Kane, Director

Division of Reactor Projects

Enclosure: NRC Region I Inspection Report No. 50-219/86-33

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cc w/ encl:

M. Laggart, BWR Licensing Manager

Licensing Manager, Oyster Creek

Public Document Room (PDR)

Local Public Document Room (LPDR)

Nuclear Safety Information Center (NSIC)

NRC Resident Inspector

State of New Jersey

bcc w/ encl:

Region I Docket Room (with concurrences)

Management Assistant, DRMA (w/o encl)

Section Chief, DRP

Robert J. Bores, DRSS

DRS Director

DRSS Director

i W. Johnston, DRS

J. Durr, DRS

J. Wiggins, DRS

D. Holody

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