ML19257D053

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Responds to NRC Request for Statement Re 791231 Notice of Violation Concerning Senior Operators license.On-shift Training Meetings Conducted
ML19257D053
Person / Time
Site: Beaver Valley
Issue date: 01/18/1980
From: Hartner A
DUQUESNE LIGHT CO.
To: Stello V
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
References
BVPS:AWH:1, NUDOCS 8001310284
Download: ML19257D053 (4)


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.rgh. PennsyNania DUQUESNE LIGHT COMPANY Beaver Valley Power Station Post Office Box 4 Shippingport, PA 15077 January 18, 1980 BVPS:AWH:1 Beaver Valley Power Station, Unit No. 1 Dociet No. 50-334, Licease No. DPR-66 Notice Of Violation Dated December 31, 1979 Victor Stello, Jr. , Jirector Of fice of Inspection and Enforcecent United States Nuclear Regu'.atory Cemaission Wa s'tington , D . C. 20555

Dear Mr. Stello:

This letter is in response to your request for a written statement concerning the Natice of Violation dated Dececher 31, 1979 which states that I did nat fully comp 1.y with the conditions of my Senior Operator License (No. SOP-3323) - specifically that I approved a switching order assectated with a aaintenance work request on the Refueling Water S_torage Tank isolation valve [MOV-CH-115D].

The Notice relates principally to various maintenance activities which occurred on November S ,1979 concerning the above-mentioned equipment. As the senior licensed operator and Station Operating Foreman, I was directing the liccased activities of licensed personnel on that day. I would like to provide you with some background information which can give some insight into the contributing circunstances that caused thic noncompliance as well as inform you of the a:ticas I plan to take to prevent any recurrence of similar noncocpliances.

1841 330 8002 n i o 2 QT

o Mr. Victor Stello Janua ry 18, 1980 BVPS:AWH:1 Page 2 On November 25, 1979, I was informed by a licensed operator who was performing an Operating Surveillance Test on [MOV-CH-115D] that he was having trouble getting the valve to close electrically. After a few attempts to close the valve, it closed properly. I immediately generated a Maintenance Work Request to troubleshoot the electrical problem with the valve.

The station Onsite Safety Committee held a special meeting to discuss this proble=; since the valve could be opened electrically, it was decided the valve was operable.

On the morning of November 27, 1979, I properly relieved the previous (0000-0800) Station Operating Foreman. He provided me with the necessary information concerning Operations and Maintenance activities that were to take place that day as well as changes from the previous day's activities. At that time, I was informed the No. 1 Eaergency Diesel Generator had been taken out of service for Maintenance to perform an 18-month Preventive Maintenance Procedure.

During this tice, the plant was in Operational Mode 1 and we were preparing to shut down for a major refueling cutage within a few days. As a result, Operations and Paintenance activities of the station were much more hectic than normal.

At approximately 0830 hours0.00961 days <br />0.231 hours <br />0.00137 weeks <br />3.15815e-4 months <br />, the Nuclear Shift Supervisor left the Control Roon for the regular Plan Of The Day meeting. Prior to his departure, he was directly involved with other station activities which were not related to the routine operation of the station. These activities included certain security functions, such as special authorization for construction personnel to come onsite for the outage modifications and distribution of security keys to various Maintenance personnel for access to vital areas for performance of routine jobs and modification preparations. With the departure of the Shift Supervisor from the Control Root, I temporarily assured his duties as acting Shift Supervisor.

This imrediately doubled my duties since 1 was still involved with my duties as the Shift Foreman.

Shoftly after his departure, I was handed the switching order for authorization to recove [MOV-CH-ll5D] from service for Maintenance. I was concerned that this problem be corrected as soon as possible. At that time, I knew [MOV-CH-115B] was operable from its normal power supply and was not otherwise removed f rom service (i.e. on clearance). I approved the switching order that authorized removal of [MOV-CH-115D] from service. At about this time, we began experiencing malfunctions of the "B" Steam Generator feed flow channel. I became directly involved with attempts to solve this problem and, as a result, was distracted from the clearance on [MOV-CH-ll5D]. The level in the "B" Steam Generator rose to approximately 65% before it was stopped by the licensed plant operator. (The plant trip level is 70%.) After approximately 20 or 30 minutes, the level was returned to normal and was stabilized with no further problems encountered. At this time, I returned to my no du i s

Mr. Victor Stello January 18, 1980 BVPS:AWH:1 Page 3 At approximately 1013 hours0.0117 days <br />0.281 hours <br />0.00167 weeks <br />3.854465e-4 months <br />, the Shift Supervisor returned to the Control Room and assured his nornal duties. At this time, I left the Control Room to check on certain plant activities concerning operations. When I returned to the Control Roc =, I was informed by the Shif t Supervisor that the problem with

[MOV-CH-ll3Dj had been discovered. I agreed with him that his actions to mitigate the probica vere both necessary and proper. [MOV-CH-115D) was immediately reenergized and repositiened in the open position. This returned the "B" train high head cafety injectica to service which permitted work to continue on the valve in order to expedite repair as soon as possible. Station management was immediately notified and the initial draf t report of the event was prepared.

In the days following this incident, I participated in meetings with various members of statica management in an attempt to determine the events which contributed to the occurrence of this incident. I also had direct input into the developnent of administrative procedures and checklists which are now being used to ensure operability of redundant trains of engineered safety features equipment whenever any safety system or subsystem is removed from service. I also made suggestions to station management concerning ways to either minimize the length cf time safety equipment is renoved from service for periodic maintentace or to eliminate cutage time altogether.

I als o have conducted on-shif t training meetings to assure that myself and the licensed operators whose activities I direct are aware of and acquainted with use of the new adninistrative procedures that were developed to prevent recurrecce of any similar noncompliance.

Very truly yours, yhf e dbbg,l ~ g"\" A. W. ea _

Station Operating Foreman 1841 332