ML19332C412

Proposed Tech Specs Allowing Removal of Tolerance Limit 3.25 on Three Consecutive Surveillance Intervals.Requirement Shall Be Performed within Specified Surveillance Interval W/Max Allowable Extension Not to Exceed 25% of Interval

ML19332C412
Person / Time
Site:	River Bend
Issue date:	11/17/1989
From:	GULF STATES UTILITIES CO.
To:
Shared Package
ML19332C411	List: ML19332C410 ML19332C412
References
NUDOCS 8911280093
Download: ML19332C412 (4)

Text

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ENCLOSURE I .

i Proposed Revision to Specification 4.0.2  ;

r INSERT ,

4.0.2 Each Surveillance Requirement. shall be perfonned within the

'specified surveillance interval with a maximum allowable extension not to exceed 25 percent of the specified surveillance interval, 6

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SURVEILLANCE REQUIREMENTS - D i

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4.0.1 Surveillance ' Requirements shall be met during the OPERATIONAL CONDITIONS l-or other conditions specified for individual Limiting Conditions for Operation unless otherwise stated in an individual Surveillance Requirement.

INSERT

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Li nterva with:

a. A maxi allow e ext sivn to exc d 255 the s veill ce inte al, bu

b. e comb ed tt ,intervp for any

,conse ive s veill ceiptervalj.

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4.0.3 Failure to perform a Surveillance Requirement within the specified *.ime interval shall constitute a failure to meet the 0FERA81LITY requirements for a Limiting Condition for Operation. Exceptions to these requirements are stated in the individual Specificatons. Surveillance requirements do not have to be performed on troperable equipment. .

. 4.0.4 Entry int.o an 0PERATIONAL CONDITION nr other specified applicable condition shall not be made unless the Surveillance Requirement (s) associated

• with the Limiting Condition for Operation have been performed within the .

l applicabl.a surveillance interval or as othemise specified. -

1 4.0.5~ Surveillance Requirements for inservice inspection and testing of ASME '

, Code Class 1, 2, & 3 components shall be applicable as follows: '

a. Inservice inspection of ASME Code Class 1, 2, and 3 components and inservice testing of ASME Code Class 1, 2, and 3 pumps and valves 1 shall be performed in accordance with Section XI of the ASME Boiler 1 and Pressure Vessel Code and applicable Addenda as required by 10 CFR 50. Section 50.55a(g), except where specific written relief has been granted by the Commission pursuant to 10 CFR 50. Section 50.55a(g)

(6) (1). i

b. Surveillance intervals specified in Section XI of the ASME Boiler and Pressure Vessel Code end applicable Addenda for the inservice l inspection and testing activities required by the ASME Boiler and Pressure Vestel Code and applicable Addenda shall be applicable as follows in these Technical Specifications:

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P.IVER BEND - UNIT 1 3/4 0-2 l l

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ENCLOSURE 11 Proposed Bases Revision to Specification 4.0.2 )

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INSERT i Specification 4.0.2 establishes the limit for which the specified time  ;

interval for Surveillance Requirements may be extended. It permits an allowable extension of the nomal surveillance interval to facilitate surveillance scheduling and consideration of plant operating conditions that may not be suitable for conducting the surveillance; e.g.,

transient conditions or other ongoing surveillance or maintenance activities. It also provides flexibility to accommodate the length of a fuel cycle for surveillances that are performed at each refueling outage and are specified with an 18 month surveillance interval. It is not intended that this provision be used repeatedly as a convenience to extend surveillance intervals beyond approximately 3.25 for three consecutive intervals that are not performed during refueling outages.

The limitation of Specification 4.0.2 is based on engineering judgement and the recognition that the most probable result of any particular surveillance being performed is the verification of conformance with the Surveillance Requirements. This provision is sufficient to ensure that the reliability ensured through surveillance activities is not significartly degraded beyond that obtained from the specified surveillance interval.

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APPLICA8ILITY

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4.0.1 This specification provides that surveillance activities, necessary f to ensure the Limiting conditions for operation are met, will be performed 4 during the OPERATIONAL CONDITIONS or other conditions for which the Limiting  :

Conditions for Operation are applicable. Provisions for additional surveillance  !

activities, to be performed without regard to the applicable OPERATIONAL CONDI-TIONS or other conditions, are provided in the individual Surveillance Require- i ments. Surveillance Requirements for Special Test Exceptions need only be performed wher the Special Test Exception is being utilized as an exception to an individual specification.

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. 'or formi survei nce activiti eyond t a specif d in the inal eilla inter . These tol nces are cessary provide rationa -

I Plexibi y bec e of schedulf and perf ance con derations The phr e

"at st" as 1sted with a arveillan frequen oes not ate thi j; .

al weble erance; inst , it perm the mor requent rformanc of

l. urveill e activitie . . .

The toleranc aluese ta either i vidua11 r consec ively o r three  :

st intervals re.suffici t1y.restr ive to ure that e reli lity a associated the surv lance act ty is n signific ly deg ded beyond

......_.......-i..,.-m.i py.u u ire m.wrv5i. ,,f 4.0.3 The provisions of this specification set forth the criteria for determination of compliance with .the OPERABILITY requirements of the Limiting .

Conditions for Operation. Under these criteria, equipment, systems or components are assumed to be OPERABLE if the associated surveillance activities have been satisfactorily performed within the specified time interval. Nothing in this provision is to be construed as defining equipment, systems or components OPERA 8LE, when such items are found or known to be inoperable although still .

meeting the Surveillance Requirements. , ,

4.0.4 This specification' ensures that surveillance activities associated i j with a Limiting Condition for Operation have been performed within the specified time interval prior to entry into an applicable OPERATIONAL CONDITION or other specified applicability condition. The intent of this provision is to ensure l

that surveillance activities have been satisfactorily demonstrated on a current basis as required to meet the OPERA 8ILITY requirements of the Limiting Condition for Operation.

Under the terms of this specification, for example, during initial plant

startup or following extended plant outage, the appitcable surveillance activ-ities must be performed within the stated surveillance interval prior to placing or returning the system or equipment into OPERABLE status.

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RIVER 8END - UNIT 1 8 3/4 0-2 e '

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