ML19291C931

AO 72-19:on 721026,during Surveillance Test of Vapor Container Isolation Valves Trip Sys,Solenoid Operated Valve SOV-432 Failed.Failure of Solenoid Valve to Operate Prevented Four Trip Valves from Closing

ML19291C931
Person / Time
Site:	Yankee Rowe
Issue date:	10/27/1972
From:	Autio H YANKEE ATOMIC ELECTRIC CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19291C930	List: ML19291C929 ML19291C931
References
AO-72-20, NUDOCS 8011140419
Download: ML19291C931 (1)

Text

_

.,_,p....._---

--- +

C.,

c t

YANKEE ATOMIC ELECTRIC COMPANY I

.....-- p :.z Y

=

ROWE, MASSACHUSETTS 017 October 27, 1972

=

f I

United Statec Atccic Energy Ccc=.itcion

[

Directorste of Regulatory Operations, Rer, ion 1 2-970 Broad Street

=

llevark, ii. J. 07102 Attention:

l'.r. James O'Reilly

~_

heference:

Operating 1ieenz.e DPR-3 Docket No. 50-29 Abnor::.a1 Occurrence no, 72-19,10/26/T2,1600 hours0.0185 days <br />0.444 hours <br />0.00265 weeks <br />6.088e-4 months <br />

Dear Sir:

Daring a curveillt. nee test of the Vapor Container Ico}ntion Valves Trip Cycto:3, the no3enoid operated valve COV b32 failed to operate when enercited by the Master 7 rip WL Relay. The no3eno16 valve controls the air rupply to four trip valves on the secondhry stere:, supp3y. Failure of the tolenoid valve to operate prevented the four trip valvec frc: closing.

Very truly yourc, h.h

./

V% *

</ M4 Herbert A. Autio Plant Duperintendent HAA/vh::,

l 801.114'O

,A

-