ML19317G064

From kanterella
Jump to navigation Jump to search
AO-50-312/74-11:on 741102,decay Heat Cooler Discharge Valve SFV-26039 Locked Open.Caused by Broken Tooth on Main Drive Gear.Drive Gear Replaced
ML19317G064
Person / Time
Site: Rancho Seco
Issue date: 12/10/1974
From: Colombo R
SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:
Shared Package
ML19317G062 List:
References
NUDOCS 8002210760
Download: ML19317G064 (1)


Text

_

CENSEE EVENT REPORT b

V CONTROL BLOCK:l l

l l

l l

l (PLFASE F llNT aLL REQUIRED INFORMATION) 1 6

AME LCENSE NUMBER TY l C l Al Rl Sl Sl1 l l 0 l 0 !-l 0l 0l 0l0 l0 l-l 0 l 0 l l 4l 1l 1l 1! 1l l0 l1 l

~

1 7 89 14 15 25 26 30 31 32 CATEGCAY T

SO OCCKET NUMBEA EVENT DATE REPoAT CA*E 01 CON'T l p l o l lL l l 0 l 5 l 0 l-l 0 l 3l 1l 2l l1l1l 0l 2l 7l 4l l1l211l0l7lL!,

7 0 57 58 59 60 61 68 69 74 75 80 EVENT DESCRIPTION

@l The decav heat system was beine vented followine maintenance.

The decav heat l

7 89 80

@[ l cooler discharge valve was opened to 3200 epm and then throttled to 2800 epm.

l 7 89 SO O

l The valve locked in position and would not respond to any further throttle attemots. I 7 89 80 hl l

7 89 60 hl l

7 89 80

pay, CE CO E CCVPCNENT CCCE SU.

MANUF A

voLAToN O

l ClF l l El l V l A l Ll Vl 0 l P l l Ll l Ll 2l O! 0l lN l J

7 89 10 11 12 17 43 44 47 48 CAUSE DESCR:PTION EE l A tooth broke off the cain drive gear and jarred the cear drive.

The valve coerator l 7 89 E:

Oa l 1s made by Limitorque Corporation, Model SMB-0-H2BC.

Main drive gear was replaced.

l

,L, e

i

9 e

\\.,,/

FACIUTY METHOD CF STATUS

% POWEA OTHEA STATUS CISCOVEAY OISCOVEAY CESCA PTCN

{

lG l l 0l 0l 0! l N/A l

lAl l

N/A 7 8 9

10 12 13 44 45 46 20 FORM OF ACTMTV CCNTENT AELEASEO CF AELEASE l N/A l

l N/A l

AMCLNT CF ACTMTV LOCATCN CF AELEASE 12 l Z 'l lZl 7 8 9

10 11 44 45 SC PERSONNEL EXPOSURES NuMsEA Ty pE DESCAiATCN BE I010l0l Ul N/A I

7 89 11 12 13 EO -

PERSONNEL INJURIES NUMBEA DESCnPTCN l0l 0l0l l

N/A l

i 7 89 11 12 EJ

OFFSITE CONSEQUENCES 1

l N/A l

7 89 EO LOSS OR DAMAGE TO FACILITY TYCE CESC? pT!CN b

l N/A l

1 7 89 10 50 PUGLIC:TY

@l Local newspapers inforced "Sacracento Bee" and "The Union" l

/ 89 80 C

N ADDIT;ONAL FACTORS j l N/A 8002210 6C

(

T'89 50 3l I

7 89 60 Ronald W. Calceb (916) 452-3211 NAME:

PGE:

GPO 683 467 n