ML20203N566

Ack Receipt of Informing NRC of Steps Taken to Correct Violations Noted in Insp Repts 50-327/85-24 & 50-328/85-24.Response Did Not Demonstrate Ice Removed from Unit 2 Intermediate Deck Door within 48 H of Discovery

ML20203N566
Person / Time
Site:	Sequoyah
Issue date:	04/21/1986
From:	Olshinski J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:	White S TENNESSEE VALLEY AUTHORITY
References
NUDOCS 8605050504
Download: ML20203N566 (2)

See also: IR 05000327/1985024

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Tennessee Valley Authority April 21, 1986

ATTN: Mr. S. A. White

Manager of Nuclear Power

6N 38A Lookout Place

1101 Market Street

Chattanooga, TN 37402-2801

Gentlemen:

SUBJECT: REPORT NOS. 50-327/85-24 AND 50-328/85-24

Thank you for your revised response of October 24, 1985, to our Notice of

Violation issued on August 7,1985, concerning activities conducted at your

Sequoyah facility. We have evaluated your response and found that it meets the

requirements of 10 CFR 2.201. Please find enclosed our evaluation to your

response. We will examine the implementation of your corrective actions during

future inspections.

We appreciate your cooperation in this matter.

Sincerely,

(originial signed by Stephen P. Weise)

John A. Olshinski

Deputy Regional Administrator

for TVA

Enclosure:

Staff Evaluation

w/ encl.:

l H. L. Abercrombie, Sequoyah Nuclear

Plant Site Director

VP. R. Wallace, Plant Manager i

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pK. W. Whitt, Director, Nuclear

Safety Managers Review Group i

PD. L. Williams, Jr. , Supervisor  !

Licensing Section  !

vG. B. Kirk, Compliance Staff Supervisor i

t J. E. Wills, Project Engineer

bec w/ encl:

tJ. N. Grace, RII

L H. R. Denton, NRR

pH. L. Thompson, NRR

54. M. Taylor, IE

A . B. Hayes, 01 86050505o4 e6c421 7

L4. R. Connelly, 0IA ADOCK 0500

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ENCLOSURE

Staff Assessment of Tennessee Valley Authority's

Response to a Violation Related to

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Sequoyah Nuclear Station

Inspection Report Nos. 50-327/85-24 and 50-328/85-24

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1. NRC Region II has reviewed the licensee's response and concluded that there

is sufficient justification for the violation. Specifically:

a. The licensee states that on June 10 and 22,1985, ice removal from

Unit 2 intermediate deck doors was verified, in part, by reviewing

radiation work permits (RWP) and the documented performance of

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Surveillance Instruction (SI)-3. To our knowledge, ice removal had not

specifically been identified on a RWP. On June 10, 1985, a Maintenance

Request (MR) A-553690 was generated to include the removal of the ice

accumulation as documented in the Auxiliary Unit Operator Daily

Journal. The actual performance of this maintenance request was at

least six days later which would indicate that the ice remained on the

ice condenser doors for that period of time. The staff recognizes that

it was the licensee's practice to periodically remove ice from

intermediate deck doors and that this action was accomplished

informally under a general housekeeping RWP.

The staff further recognizes that ice removal involves work on a

safety-related system and, by the licensee's procedures, such work is

required to be performed under a MR. Interviews conducted with

licensee Auxiliary Unit Operators by NRC inspectors at the time of the

inspection revealed that the meaning of the SI-3 acceptance criteria,

" free of frost accumulation," varied from operator to operator. In

fact, one operator stated that ice buildup on the doors was acceptable

as long as the ice did not bridge the doors. The staff, therefore,

does not have confidence that SI-3 was being performed adequately.

b. The staff concludes that your response does not conclusively

demonstrate that ice was removed from the Unit 2 intermediate deck

doors within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> of being discovered or that the licensee took the

necessary technical specification compensatory measures to monitor ice

bed temperatures; therefore, the violation remains as written.

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