ML19344A688

LER 80-013/03L-0:on 800715,during Pressurizer Code Safety Valve Setpoint Verification,Found RC-RV1B at Low Release Setting.Possibly Caused by Leaks within Site Testing Equipment Prior to Installation

ML19344A688
Person / Time
Site:	Three Mile Island
Issue date:	08/18/1980
From:	Mitchell D METROPOLITAN EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19344A677	List: ML19344A676 ML19344A688
References
LER-80-013-03L, LER-80-13-3L, NUDOCS 8008210459
Download: ML19344A688 (1)

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Attachment 1 TLL 398 U. S. NUCLEAR REGULATORY COMMsSSION teAtc Fom u 364 n.m

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l During performance of the PressurizYr Code Safety Valve Setpoint Verification pro ,

p I cedure, it was determihed that RC-RV1B lif ted at 2330 psig, which is not within 11m{ts ioi.jlof 2500 psig 17. .

The unit has been in long term cold shutdown since the valve'sl ITTT'1 I installation. Therefore, the health and safety of the public was r.ot affected. The IoisiIexact cause for the low release setting is under investigation, houever, the l

I Io!71 i surveillance orocedure will be reviewed.

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CAUSE O SCAtPTION NO CCARECTIVE ACTICNS @

lt toll Leaks within the site testing equipment when the setpoint verif' cation was I iiiiilperformed nrior to installation may have caused the low setpoint. The setooint I ii !7Il for RC-RV1B was brought to within specifications. An investication and evaluationI i.631 l will be conducted and the results forwarded by 11/1/80. Dresser 2.5" x 6" type i I

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