05000280/LER-1980-023-01, /01T-0:on 800417,during Valve Insp,Discovered That Seat Was Detached in Valve 1-FW-27 & Disc Was Detached in Valve 1-FW-89.Cause of Detached Seat Unknown.Detached Disc Caused by Improper Cotter Pins

/01T-0:on 800417,during Valve Insp,Discovered That Seat Was Detached in Valve 1-FW-27 & Disc Was Detached in Valve 1-FW-89.Cause of Detached Seat Unknown.Detached Disc Caused by Improper Cotter Pins

ML18139A186
Person / Time
Site:	Surry
Issue date:	04/30/1980
From:	VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML18139A185	List: 05000280/LER-1980-023, Forwards LER 80-023/01T-0 05000280/LER-1980-023-01, /01T-0:on 800417,during Valve Insp,Discovered That Seat Was Detached in Valve 1-FW-27 & Disc Was Detached in Valve 1-FW-89.Cause of Detached Seat Unknown.Detached Disc Caused by Improper Cotter Pins
References
LER-80-023-01T, LER-80-23-1T, NUDOCS 8005060175
Download: ML18139A186 (1)

LER-1980-023, /01T-0:on 800417,during Valve Insp,Discovered That Seat Was Detached in Valve 1-FW-27 & Disc Was Detached in Valve 1-FW-89.Cause of Detached Seat Unknown.Detached Disc Caused by Improper Cotter Pins

Event date:
Report date:
2801980023R01 - NRC Website

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_REPORT DATE

• BO EVEr-.iT DESCRIPTION AND ?ROBABLE CONSEQUENCES @

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I During an inspection of the internal parts* of valves l-FW-89, it was discovered that -

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I the seat was detache!i in l-FW-27.and the disc *was detached in 1-FW-89.

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.i1 I prevented* these valves from fulfilling their -intended function.

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1 At this time the cause of the detached seat is urik.nown,while the detached disc is

• attributed to improper cotter pins.

The two *valves have been repaired.

The remaining i....;.....&...::2.J J check valve in Unit 1 and the three check Valves in Unit 2 have been -inspected and

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