ML20247L578

Notice of Violation from Insp on 980315-0425.Violation Noted:Licensee Failed to Perform Surveillance Requirement 4.8.1.1.1.a,within 1 H & at Least Once Per 8 H Thereafter

ML20247L578
Person / Time
Site:	Sequoyah
Issue date:	05/15/1998
From:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:
Shared Package
ML20247L564	List: IR 05000327/1998004 ML20247L558 ML20247L578
References
50-327-98-04, 50-327-98-4, 50-328-98-04, 50-328-98-4, NUDOCS 9805260020
Download: ML20247L578 (2)

Text

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NOTICE OF VIOLATION Tennessee Valley Authority Docket Nos. 50-327 and 50-328 Sequoyah Nuclear Plant License Nos. DPR-77 and DPR-79 During an NRC inspection conducted on March IS through April 25, 1998, a violation of NRC requirements was identified. In accordance with the " General Statement of Policy and Procedures for NRC Enforcement Actions." NUREG-1600, the violation is listed below-Technical Specification (T.S.) 3.8.1.1.b requires "as a minimum, the following A.C. electrical power sources shall be operable: Four separate and independent diesel generator sets each with a separate fuel storage system containing a minimum volume of 62.000 gallons of fuel and a separate fuel oil transfer pump. I The Updated Final Safety Analysis Report. Section 8.3.1.1. Description -

Diesel Fuel Oil System, states " Transfer of fuel between the seven day supply tanks and the engine day tanks is accomplished automatically by a pair of pumps controlled by float operated switches which sense fuel level in the engine day tanks."

The T.S. definition for Operability. Section 1.19. states "A system.

subsystem, train, or component or. device shall be Operable or have Operability when it is capable of performing its specified functions and when all attendant. . auxiliary equipment that are required for the system, subsystem, train, component or device to perform its functions are also capable of performing their related support function."

T.S 3.8.1.1 action "b" requires that with a diesel generator inoperable, demonstrate the operability of the remaining A.C. sources by performing Surveillance Requirement 4.8.1.1.1.a within one hour and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter.

1 Contrary to the above on March 24. 1998, the licensee failed to perform Surveillance Requirement 4.8,1.1.1.a. within one hour and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter, when the IA-A diesel generator automatic start circuitry of the fuel oil transfer system was disabled for a period of approximately 13 hours1.50463e-4 days <br />0.00361 hours <br />2.149471e-5 weeks <br />4.9465e-6 months <br /> and 20 minutes, thus rendering the transfer pumps inoperable. The transfer pumps could no longer perform their intended L function of automatically filling the emergency diesel day tanks, which resulted in an inoperable 1A-A diesel generator This is a Severity Level IV Violation (Supplement I).

Pursuant to the provisions of 10 CFR 2.201. Tennessee Valley Authority is hereby required to submit a written statement or explanation to the U.S. j Enclosure 1

-suo PDR = m l

• ADOCK 05000327 i PDR l

4 C__.____________ __..__________.__.__.___..___c____ . . _ _ _ _ . _ _ . . _

NOV 2 Nuclear Regulatory Commission. ATTN: Document Control Desk, Washington, D.C.

20555 with a copy to the Regional Administrator, Region II, and a copy to the NRC Resident Inspector at the Sequoyah facility, within 30 days of the date of the letter transmitting this Notice of Violation (Notice). This reply should be clearly marked as a " Reply to a Notice of Violation", and should include for each violation: (1) the reason for the violation, or, if contested, the basis for disputing the violation (2) the corrective steps that have been taken and the results achieved (3) the corrective steps that will be taken to avoid further violations, and (4) the date when full compliance will be achieved. Your response may reference or include previously docketed correspondence if the correspondence adequately addresses the required response. If an adequate reply is not received within the time specified in this Notice, an order or Demand for Information may be issued as to why the license should be modified, suspended, or revoked, or why such other action as may be proper should not be taken. Where good cause 1s shown, consideration will be given to extending the response time.

If you contest this enforcement action, you should also provide a copy of your response to the Director Office of Enforcement, United States Nuclear Regulatory Commission. Washington. DC 20555-0001.

Because your response will be placed in the NRC Public Document Room (PDR). to the extent possible, it should not include any personal privacy, proprietary, or safeguards information so that it can be placed in the PDR without redaction. If personal privacy or proprietary information is necessary to provide an acceptable response, then please provide a bracketed copy of your response that identifies the information that should be protected and a redacted copy of your response that deletes such information. If you request withholding of such material, you must specifically identify the portions of l your response that you seek to have withheld and provide in detail the bases i for your claim of withholding (e.g., explain why the disclosure of information l will create an unwarranted invasion of personal privacy or provide the l information required by 10 CFR 2.790(b) to support a request for withholding confidential commercial or financial information). If safeguards information is necessary to provide an acceptable response, please provide the level of protection described in 10 CFR 73.21. l Dated at Atlanta Georgia this 15th day of May 1998 l

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