ML20154L039

Responds to NRC Re Violations Noted in Insp Repts 50-413/88-25 & 50-414/88-25.Corrective Actions:Tech Spec Amend Request Sent to NRC on 880711 to Further Clarify Requirements for PORV Block Valve Position Indication

ML20154L039
Person / Time
Site:	Catawba
Issue date:	09/16/1988
From:	Tucker H DUKE POWER CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
NUDOCS 8809260082
Download: ML20154L039 (3)

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i September 16, 1988

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1 U. S. Nuclear Regulatory Comunission Washington, D. C. 20555 j Attention: h contee8'Mw l

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Subject:

Catawba Nuclear Station Units 1 and 2 l Docket Nos. 50-413 and 50-414 i NRC Inspection Reports Nos. 50-413. -414/88-25 i Reply to a Notice of Violation l  !

Gentlemen:

Please find attached Duke Power Company's response to Severity level V violation [

No. 50-413. -414/88-25-01 which was transmitted by V. L. Brownlee's (NRC) letter- f dated August 19, 1988. This violation was caused by the failure to maintain t'.s  !

operable channels of valve position indication for the Pressurizer PORV block i valves. ,

Very truly yours,

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Hal B. Tucker l' t

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Attachment xc Dr. J. Nelson Grace, Regional Administrator [

U. S. Nuclear Regulatory Commission }i Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 f

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Nr. P. K. Van Doorn f NRC Resident Inspector j Catawba Nuclear Station j t

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i 8809260092 880916 3 i i DR ADOCK 050 I \ l I

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. DlTKE POWER COMPANY CATAWRA NUCLEAR STATION VIOLATION 411. 414/88-25-01 I

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Technical Specification 3.3.3.6 requires that the accident monitoring channels as t shown in Table 3.3-10 be operable. The Action Statement specifies that with the

number of operable accident monitoring instrumentation channels less than the Total Number of channels shown in Table 3.3-10. restore the inoperable channel (s) to operable status within 7 days, or be in ' 'st hot standby within the noxt 6 ,

, hours and in hot shutdown within the follow.... O hours. Table 3.3-10 shows the '

Total Number of channels required for PORV Block Valvo Position Indicator as t 2/ valve on Unit 1 and prior to May 27, 1988 as 2/ Valve on Uait 2. l Contrary to the above the licensee failed to maintain two operable channels por [

valve for PORV Block Valvo Position Indicators from initial licensing until May l l 20, 1988 and failed to comply with the Action Statement.

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

kcason for the Violation if Admitted t

This Violation was attributed to a management deficiency due to an inconsistency

! in Technical Specification requircaents and plant design. During tne review of ,

j standard Technical Specifications to ensure that the design for PORV and PORY  !

Block Valve Position Indicatiuon occured with Catawba Technical Specifications, l an oversight was made.

Corrective Steps Which Have Been Taken and the Results Achieved i  ?

] 1. Temporary Station Modification (TSM) 9732IAE was initiated which installed i 1 jumpers from the Unit 1 test patch panel to the Operator Aid Copnputer (OAC)  !

! to provide an independent position indication and to facilitate performance  !

! of surveillances on the Unit 1 PORY block valves. This modification f j satisfied the requirements of two independednt channels of PORV Block Valve  ;

J Indication on Unit 1.

i t 2. An Emergency Technical Specification change was issued by the NRC on May 27, i 1988 to allow Unit 210RV block valve indication requirements to be revised {

' from 2/ valve to 1/ valve. This Emergency Technical Specification change was  ;

issued to preclude significant delays for the restart of Unit 2. i

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3. A Technical Specification interpretation was issued for Technical l 1 Specification 3.3.3.6. This interpretation describes the dif ferences between

' the two units and the approach to use in the event of position indication inoperability. l t

4. A Technical Specification amendment request was sent to the NRC on July 11, i 1988 to further clarify the requirements for PORV Block Valve Position  :

I Indication.

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5. The Operations Periodic Test Procedures (Unit 1 and Unit 2) for Monthly ,

Surveillance Items, were revised to reflect proper channel checks for the PORVs and PORV block valves.

6. All Compliance members have been reminded of the need to include all IFIs,  ;

URIs or Violation followup items on the Catawba Commitment List until '

completion. ,

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7. Station Management is being provided monthly sunmaries of the Commitment List 5 items identifying the total number of commitment items by group, which are I

past due. A letter, from the Station Manager, providing further control over i

! the ortension of Commitment dates and the intent to complete items as scheduled has been distributed to the Group Superintendents and Section '

Heads.

Corrective Steps Which Will Be Taken to Avoid Further Violations ,

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j Compliance will continue to work closely with the NRC Resident Inspectors on [

d any items identified that differ from the strict words in the Technical  !

Specifications to provide satisfactory resolution of the problem.  !

i Datn When Full Compliance Will Be Achieved i

Duke Power is now in full compliance. ,

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