ML20059M558

Notice of Violation from Insp on 930909-1105.Violation Noted:Operators Failed to Implement ARP 4D40 When Low Gland Steam Pressure Annunciator Alarm Was Received Subsequent to Reactor Trip

ML20059M558
Person / Time
Site:	Fermi
Issue date:	11/10/1993
From:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:
Shared Package
ML20059M544	List: IR 05000341/1993018 ML20059M542 ML20059M558
References
50-341-93-18, NUDOCS 9311190162
Download: ML20059M558 (1)

Text

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1 NOTICE OF V10tATION l Detroit Edison Company Docket No. 50-341 License No. NPF-43 As a result of the inspection conducted from September 9, 1993, through November 5,1993, a violation 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 (1993), the violation is listed below:

10 CFR Part 50, Appendix B, Criterion V, requires, in part, that activities j affecting quality be prescribed by documented instructions, procedures, or -

drawings of a type appropriate to the circumstances, and be accomplished in  !

accordance with these instructions, procedures, or drawings. l l

Annunciator Response Procedure (ARP) 4D40, " Gland Steam Pressure High/ Low,"

initial response section, required operators to throttle open valve N30F603,  ;

Gland Steam Supply Regulator Bypass Valve, to maintain gland steam pressure at  ;

2 to 3 psig when a low gland steam pressure alarm exists. -

Contrary to the above, on August 13, 1993, the operators failed to implement ARP 4D40 when the low gland steam pressure annunciator alarm was received subsequent to a reactor trip at 9:46 a.m. A subsequent high condenser pressure annunciator alarm was received at 9:50 a.m. when gland steam pressure was not restored by the operators. The Main Steam Isolation Valves i

automatically closed at 10:03 a.m. due to the high condenser pressure. The closing of the MSIVs resulted in the loss of the main condenser as a heat sink l and the manual use of the Automatic Depressurization System reactor safety relief valves E, J, P, and R to control reactor pressure.

This is a Severity Level IV violation (Supplement 1). (50-341/93018-01(DRP)

Pursuant to the provisions of 10 CFR 2.201, Detroit Edison Company is hereby required to submit a written statement or explanation to the U. S. Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington, D. C. 20555 with a copy to the Regional Administrator, Region III, and a copy to the NRC Resident inspector at the facility that is the subject of this Notice, within 30 days of the date of the letter transmitting the Notice of Violation (Notice). This reply should be clearly marked as a " Reply to a Notice of Violation" and should include for each violatian: (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. If an adequate reply is not received within the time specified in the 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. Where good cause is shown, consideration will be given to extending the response time. Under the authority of Section 182 of the Act, 42 U.S.C. 2232, this response shall be submitted under oath or affirmation.

9311190162 931110' PDR 0 ADOCK 05000341 PDR.-

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