ML20055D211

Responds to Request for Addl Info Re Violations Noted in Insp Rept 50-482/90-05.Corrective Actions:Change Made to Adm 02-005, Reactor Operators Qualifications & Responsibilities

ML20055D211
Person / Time
Site:	Wolf Creek
Issue date:	06/29/1990
From:	Bailey J WOLF CREEK NUCLEAR OPERATING CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NO-90-0201, NO-90-201, NUDOCS 9007050158
Download: ML20055D211 (2)

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W4LF CREEK NUCLEAR OPERATING CORPORATION John A. Bailey

%ce Proeseen:

h oP*** June 29, 1990 NO 90-0201 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Station P1-137 .f Washington, D. C. 20555 q Reference Letter dated May 23, 1990 from S. J. Collins, NRC to ]

B. D. Withers, WCNOC j

Subject:

Docket No. 50-482: Response to Request for Additional l Information on Violation 482/9005-02 t Gentlemen: I I

This letter provides Wolf Creek Nuclear Operating Corporation's (WCNOC) response to the request for additional information documented in the Reference. The request for additional information was associated with >

violation 482/9005-02 concerning an inoperable auxiliary feedwater pustp which resulted from an improperly set speed controller.

If you have any questions concerning this matter, please contact me or Mr. H. K. Chernoff of my staff.

Very truly yours, y h 9 G M ,

John A. Bailey

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Vice President Nuclear Operations JAB /aem Attachment cct R. D. Martin (NRC), w/a D. V. Pickett (NRC), w/a H. E. Skow (NRC), w/a J. S. Wiebe (NRC). w/a

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Attachment to NO 90 0201 Page 1 of 1 Response to Request for Additional e Information Regarding Violation 482/9005-02 Recuest:  !

1 Violation 482/9005-02 concerned an inoperable turbine driven auxiliary feed i pump which resulted from an improperly set speed controller. Although the I corrective actions taken to avoid further violations addressed this specific '

example, the corrective action did not appear to address the potential for other safety-related equipment to be similarly effected.

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Response

During a review of the ESF *tatus panel, no other instances were identified where the mispositioning of ESF equipment contro11erv would not be

!. annunciated on the ESF status panel. Annunciation on the ESP status panel l of equipment controller mispositioning clearly identifies to the operators the status of the equipment, allowing appropriate actions to be determined l and taken. I Even though mispositioning of the speed controller (FC HIK-313A) for the L

, TDAFWP governor control valve le not directly annunciated on the ESF status l

panel, there is an alarm window on main control board 128-E, 'TD AFP SPD HILO", which becomes active when the TDAFWP mechanical trip and throttle L

valve, FC HV-312 is opened. This window will alert the operator if the pump is started and the speed setting is not correct. The alarm response  !

procedure for this window, ALR 00-128E, 'TD AFP SPD HILO' requires that the operator immediately ensure that the TDAFWP governor control valve speed controller (FC HIK-313A) is at its normal output setting. Although this '

alarm function.cannot prevent mispositioning of the speed controller _it does provide the ability to promptly return the speed controller to the appropriate setting if the TDAFWP is started.  ;

In addition, a change has been made to ADH 02-005, ' Reactor Operators

-Qualifications and Responsibilities' clearly stating the need for the Reactor Operator to be cognizant of plant conditions. This change was made to address an NRC concern regarding the Reactor Operator's awarenees of plant conditions.

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