ML20195E426

Notice of Violation from Insp on 880310-18.Violation Noted:W/Unit 2 in Mode 1 & Operating at 20% Power,Three Independent Steam Generator Auxiliary Feedwater Pumps Not Operable During Actual Turbine Trip

ML20195E426
Person / Time
Site:	Catawba
Issue date:	06/13/1988
From:	Grace J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:
Shared Package
ML20195E414	List: ML20195E410 ML20195E426
References
50-413-88-14, 50-414-88-14, EA-88-096, EA-88-96, NUDOCS 8806240042
Download: ML20195E426 (2)

Text

t L , 7 ;-

4 N_0TICE OF VIOLATION Duke Power Company Docket Nos. 50-413, 50-414 Catawba Nuclear Station License Nos. NPF-35,.NPF-52 Units 1 and 2 EA 88-96 During an Nuclear Regulatory Commission (NRC) inspection conducted on March 10-18,

.1988, violations of NRC requirements was identified. In accordance with the "General Statement of Policy and Procedure.for NRC Enforcement' Actions,"

10 CFR Part 2, Appendix C (1988), the violations are listed below:

A. 10 CFR Part 50, Appendix B, Criterion XI, requires that a test program be established to assure that all testing required to demonstrate that structures, systems, and components will perform satisfactorily in service is identified and performed in accordance with written tests procedures which incorporate the requirements and acceptance limits contained in applicable design documents. The test prograr shall include, as appro-priate, proof tests prior to installation, pre, operational tests, and operational tests during nuclear power plant operation, cf structures, systems, and components. Test results shall be documented and evaluated to assure that test requirements, have been satisfied.

Contrary to the above, as of March 9,1988, the test program implemented by the licensee to assure the operability of the auxiliary feedwater system (AFS) was inadequate in that it did not provide an adequate method to detect the growth of asiatic clams in the inactive portions of the nuclear service water system and, as such, did not detect the growth of such clams, which resulted in the clogging of AFS Train 'A' discharge control valves 2CA-56 and 2CA-60 with clam shells after the motor-driven AFS pump 2A suction realigned to the nuclear service water assured source.

B. Catawba Nuclear Station Technical Specification 3.7.1.2 requires that three independent steam generator auxiliary feedwater pumps and associated flow paths be operable with:

- Two motor-driven auxiliary feedwater pumps, each capable of being powered from separate emergency busses, and One steam turbine-driven auxiliary feedwater pump capable of being powered from an operable steam supply system when the unit is in modes 1, 2, or 3.

m g;;'g With one auxiliary feedwater pump inoperable, it is required to be restored

-s o ca to operable status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or the unit be in at least hot standby

$8 within the next six hours and in hot shutdown within the following six gg hours.

$ Contrary to the above, on March 9, 1988, with Unit 2 in mode 1 and gg operating at 20 percent power, three independent steam generator auxiliary W feedwater pumps and associated flow paths were not operable during an

@ actual turbine trip /feedwater isolation transient and resulting auxiliary gg feedwatersystem(CA) initiation, coa.o This is a Severity Level III problem (Supplement I).

j!  ;*

.Qb =

Notice of Violation Pursuant to the provisions of 10 CFR 2.201, Duke Power Company is -hereby required to submit a written statement or explanation to the Nuclear Regulatory Commission,-ATTN: Document Control Desk, Washington, DC 20555, with a copy to the Regional Administrator,-Region II, and a~ copy to the NRC Resident Inspector, Catawba Nuclear Station, within 30 days of the date of the letter transuitting this Notice. This reply should be clearly marked as a "Reply to a Notice of Violation" and should include: (1) admission or denial of the violation, (2) the reason for the violation if admitted, (3) the corrsctive steps which_have been taken and the results achieved, (4) the corrective steps which will be taken to avoid further violations, and (5) the date when full compliance will be achieved. Where good cause is shown, consideration will be given to extending the response time. If an adequate reply is not received within the time specified in this Notice, an order may be issued to show cause why the license should not be modified, suspended, or revoked or why such other action as may be proper should not be taken.

FOR THE NUCLEAR REGULATORY COMMISSION ORIGINAL SIGNED BYi J. NELSON GRACE J. Nelson Grace Regional Administrator Dated at Atlanta, Georgia thislidi day of June 1988

.