ML20235W173

Forwards Revised Response to Violation Noted in Insp Rept 50-414/86-18.Corrective Action:All Valves Inspected by Shift Personnel & Properly Positioned & All Locked Valves in Each Sys Were Listed & Categorized by Mfg & Size

ML20235W173
Person / Time
Site:	Catawba
Issue date:	03/01/1989
From:	Tucker H DUKE POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 8903100529
Download: ML20235W173 (3)

Text

.t . .

• Duhe Ibunt Company flat R h en P O &x33198 Vice President l Charlotte, NC 28242 Euclear Production (701)3734531

\ ' DOKE POWER March 1, 1989 Document Control Desk U. S. Nuclear Regulatory Commission i Washington, D. C. 20555 Subj ect: Catawba Nuclear Station, Unit 2 Docket No. 50-414 Revised Reply to a Notice of Violation Gentlemen:

Pursuant to 10 CFR 2.201, please find attached a revised reply to severity i level IV Violation No. 414/86-18-01 which was transmitted per L. A. Reyes',

NRC, letter dated June 13, 1986. This violation involved failures to follow procedures for locking valves. Please be advised that all corrective actions will be implemented prior to the end of the Unit 2 end of cycle 3 refueling outage, which is currently scheduled for completion in August 1990.

Very truly yours, e l H. B. Tucker JGT/2/VIO8618R Attachment xc: Mr. Stewart Ebneter Regional Administrator, Region II  !

U. S. Nuclear hegulatory Commission 101 Marietta St., NW, Suite 2900 Atlanta, Georgia 30323

-Mr. W. T. Orders NRC Resident Inspector Catawba Nuclear Station 8903100529 890301 l PDR ADOCK 05000414 [O) o PDC P 4

_ _ _ _ _ _ _ _ _ _ - . - _ _ _ _ _ . J

. . /. . .

. .1

.J DUKE POWER COMPANY REVISED REPLY TO A NOTICE OF VIOLATION 414/86-18-01 Technical Specification 6.8.1 requires written procedures to be established, implemented, and maintained covering the applicable procedures recommended in Appendix A to Regulatory Guide 1.33, Revision 2. Various licensee operating pro 2edures require valves to be in specified positions and locked in the position.-

Contrary to the above, on April 17, 1986, valves identified as 2SM70, 2SM71, 2SM73, 2SM142, 2CF95, 2CF97, 2CA119, 2CA120, 2BW10, 2WE22, 2ND53, 2NV65'and 2NV76 were not locked as specified in applicable operating procedures.

RESPONSE

1. Admission or Denial of Violation Duke Power Company admits the violation.

2. Reasons for Violation if Admitted The method used to secure these valves in their locked position is to use a r chain and lock to secure the operating handwheel. Due to the type of operating handle (a straight bar) on most of these valves, it is difficult to secure the valve to prevent it from being repositioned. A contributing cause is the level of attention to detail of the operator at the time the lock and chain are placed. Valves 2BW10 and 2ND53 are circular type handwheels. Valve 2BW10 was not required to be properly locked at the time the inspector observed the valve due to it being tagged as part of an equipment isolation and the chain and lock was removed to verify tagged position.

3. Corrective Actions Taken and Resulted Achieved A. All valves were inspected by shift personnel when the inspector identified these valves. All valves were in the proper position.

Subsequently, all valves were locked except those covered by R&R's.

B. All locked valves in each system were listed and each valve was categorized by manufacturer and size.

C. Valves with specific locking problems and a method for securely locking these valves were identified. The new method of locking 3/4", 1" & 2"

'kerotest valves is by installing factory locking devices.

o .n.

. - 4. Corrective Actions to be Taken to Avoid Further Violations A. A new method of securing the valves with straight bar type handwheels is being investigated.

B. We have previously determined that Tufeline plug valves can be securely locked by wrapping chain tightly around the pipe in a crossing manner and locking the ends of chain to the valve handle. Extra effort is required to securely lock this type of handwheel. Therefore we have evaluated the use of a more substantial locking device for these type valves. Final approval of the modification is in progress at this time and we expect to have the necessary parts on site by July of 1989.

Installation of the locking mechanism on all valves not inside containment will be completed by the end of August, 1989.

5. Date of Full Compliance Due to inaccessibility of valves inside Containment buildings, Duke Power will complete corrective actions and be in full compliance when we have an outage of adequate duration af ter we have the required parts on site.

During each shutdown, based on system load demands, we will install as many devices as time permits. In any circumstances, all corrective actions will be implemented, no later than the end of the later units next refueling outage (Approximately August, 1990).

1GT03-D4.lcs

..