ML20058M807

Discusses Closeout of NRC Bulletin 90-001, Loss of Fill-Oil Transmitters Mfg by Rosemount. Util Replaced Four Transmitters Which Fell within Scope of Bulletin During Refueling & Maint Outage

ML20058M807
Person / Time
Site:	Fort Calhoun
Issue date:	08/10/1990
From:	Bournia A Office of Nuclear Reactor Regulation
To:	Gates W OMAHA PUBLIC POWER DISTRICT
References
IEB-90-001, IEB-90-1, TAC-76558, NUDOCS 9008130074
Download: ML20058M807 (3)

Text

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e August 10,7 1990 et l

"' Docket No. '50-285-4 y..

Mr. W. Gary Gates.

Division' Manager-Nuclear Operations Omaha Public Power District 444 South 16th Street Mall Mail Stop 8E/EP4-L0maha, Nebraska' 68102-2247

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Dear Mr. Gates:

" LOSS OF FILL-0IL IN TRANSMITTERS

SUBJECT:

CLOSE0VT OF BULLETIN 90 01,(TAC NO. 76558)

MANUFACTURED BY-ROSEMOUNT"-

^

Your' _ letter dated' July 18, 1990, responded to Bulletin 90-01 for the Fort' Calhoun Station. Your response stated that there were 48 Rosemount transmitters in use at your. plant.. Of these, only four fell _within the scope of Bulletin 90-01 (ATWS function,and Model No.1154). Although you indicated that these four~ transmitters had not exhibited symptoms' indicative of the loss of fill' oil problems-since their installation in May 1987, you replaced the four transmitters during your recent Refueling and Maintenance Outage.

You stated-that these new transmitters are outside the scope of the bulletin.

Your confirmation provides an adequate basis to con':1 der NRC's review of your response complete.

Further NRC review, if any, will be performed by inspection-or audit, d

Anthony Bouknia, Senior Project Macger Project Directorate IV.1 Division of Reactor Projects - III IV, V and Special Projects Office of Nuclear Reactor Regulation cc:-

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1 Docket No. _50-285 Mr. W. Gary l Gates Division Manager-Nuclear Operations 4

-Omaha.Public Power District

'444 South 16th Street Hall

_ Mail Stop 8E/EP4

.0maha, Nebraska 68102-2247 1.

SUBJECT:

CLOSE0VT OF BULLETIN 90-01, " LOSS OF FILL-Olt IN TRANSMI7TERS MANUFACTURED BY.ROSEMOUNT" (TAC NO. 76558) ic

,L 18, 1990, responded to Bulletin 90-01-for the Fort Your-letter dated July

'Calhoun Station.; Your response stated that there were 48 Rosemount-transmitters-in use at your plant.,0f these, only four fell within the scope of Bulletin =90-01 (ATWS function-and Model No. 1154). Although you indicated

' that' these four; transmitters.had not exhibited symptoms indicative of the loss of fill oil problems.since their installation in May 1987, you replaced the four transmitters during your recent' Refueling and Maintenance' Outage.

You stated that these new transmitters are outside the scope of.the bulletin.

Your confirmation provides an adequate _ basis to consider NRC's review of your response complete.

Further NRC review, if any, will be performed by

-1nspection or audit.

Sincerely, s

Anthony Bournia, Senior Project Manager Project Directorate IV-1 Division of_ Reactor Projects - III IV, Y and Special Projects Office of Nuclear Reactor Regulation cc:

See next page i

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'" 4 p".Mr' V'. Gary Gates

Omaha-Public Power District Fort Calhoun Station, Unit No. 1

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-Harry H. (Yoigt, Esg.

n LeBoeuf, Lanb, Leiby.& MacRae-

'1333-New Hampshire Avenue, NW'

' Washington, D.C.

20036:

Mr. Jack Jensen, Chairman

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LWashington County Board'

-of Supervisors:

!Blair, Nebraska ~ 68008

-s Mr. Raymond P. Mullikin, Resident Inspector' H

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- U.S. Nuclear Regulatorv Commission Post Office Box 309.

s fort Calhoun,' Nebraska 68023 Mr. Charles B. Brinkman, Manager Washington Nuclear Operations.

Combustion Engineering, Inc.

12300 Twinbrook Parkway, Suite 330-Rockville, MD 20852

- Regional Administrator, Region IV U.S. Nuclear Regulatory Commission Office of Executive Director 3

.for Operations 611 Ryan: Plaza Drive, Suite 1000 Arlington', Texas 76011

' Harold Borchert, Director

' Division of Radiological Health Nebraska Department of Health

~301-Centennial _ Mall, South

' Post Office Box 95007

_r Lincoln. Nebraska '68509:

1 Mr.. T. 'L. Patterson,- Manager Fort Calhoun Station Post' Office Box 399 Fort'_Calhoun, Nebraska 68023 i

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