ML20204B850

RO 50-259/7827:on 780913,recirculation Loop a Flow Decreased from 41,000 to 33,000 Cpm W/Corresponding Increase in Pump Delta F.Caused by Valve Stem Separating from Valve Disc

ML20204B850
Person / Time
Site:	Browns Ferry
Issue date:	09/14/1978
From:	Dewease J TENNESSEE VALLEY AUTHORITY
To:
References
RO-50-259-7827, NUDOCS 7811020362
Download: ML20204B850 (1)

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THIS DOCUMENT CONTAiNS .

P00R QUALITY PAGES l

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suite 3100 -

7 Atlant.a. CA 30303

• ar20 50-259/7827 I;

Reperced under Technical Specifications 6,7,2,9 e

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Date of notification: September 16, 1978 Time of occurrence: 1703, Dmit 1 ,;

Technical Speelfication involved: f/13/78  ?;

3,5,3.14 J

Caediciosa Prior to occurrones; Unit operating at 950

• M 7dentification and Deveription of Oecurrence: "L" recirculation loop now decrassed f rom approximately 41,000 spe to 33,000 gym with a correspoeding toermase in recircaelation pump del ta F.

4 Annar=e (f.,nse, cf occurreneet separation of the velve acca and valve disc

~ 4 assembly is apparent. 21,c cause of thia separation is not haswn.

w, e a vr ro, s m inxen'5r Planned: riens are being rtmoulated to saelate the discharse valve and make rap 41re at necessery, At this (Lee it is anti-cipated that wel,= repe{c vt11 require vessel bead removal and the insertion of pluss into cne jet piampa, '

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, c. Dewcase, Power Plant Superintendent $

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