ML20101F827

Proposed Tech Specs Requesting Change to App a of License DPR-50

ML20101F827
Person / Time
Site:	Three Mile Island
Issue date:	06/19/1992
From:	GENERAL PUBLIC UTILITIES CORP.
To:
Shared Package
ML20101F266	List: ML20101F262 ML20101F426 ML20101F827
References
NUDOCS 9206250132
Download: ML20101F827 (1)

Text

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3.16 SH0CK SUPPRESSORS (SNUBBERS)

I LIMITING CONDITION FOR OPERATION 3.16.1 Each safety related snubber shall be OPERABLE.*

APPLICABILITY:

-Whenever the system protected by the snubber is required to be OPERABLE ACTION:

With one or more snubbers inoperable, within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> replace or restore the inoperable snubber (s) to OPERABLE status and perform an l engineering evaluation per Specification 4.17.1.g.2 on the attached component or declare the attached system inoperable and follow the i appropriate action statement for that system.

EASES Snubbers are designed to prevent unrestrained pipe motion under dynamic loads as might occur during an earthquake or severe transient, while allowing normal thermal motion during startup and shutdown. The consequence of an inoperable snubber due to failure to activate (lockup) is an increase in the probability of structural damage to piping as a result of a seismic or other event initiating dynamic loads. The consequence of snubber inoperability due to failure to extend or retract is an increase in the probability of structural '

damage to piping as a result of thermal motion. It is therefore required that all snubbers required to protect the primary coolant system or any other safety system or component which is required to be operable must also be operable. During plant conditions other than operating, snubbers on those systems that are required to be operable

. during that plant condition are also required to oc operable. ,

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• Reactor Coolant Pump Snubber RC-U-003 is temporarily excluded from I these operability requirements until inspectioc and repair of RC-U-003 hydraulic fluid leakage can be completed during the earliest outage of opportunity or refueling outage 10R, whichever occurs first.

3-63 l Amendment No. 39, Jpp 9206250132 920619 PDR ADOCK 05000289 P PDR

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