ML19317G031

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RO-76-11:on 760805,personnel Discovered Leak at Vent Valve on B Decay Heat Cooler Outlet.Cause Unknown.Previous Corrective Actions Unsuccessful.Nipple & Saddle Will Be Replaced.Valve Secured to Nearby Column
ML19317G031
Person / Time
Site: Rancho Seco
Issue date: 08/19/1976
From: Colombo R, Eisenhuth F
SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:
Shared Package
ML19317F912 List:
References
NUDOCS 8002210734
Download: ML19317G031 (1)


Text

UCENSEE EVENT REPORT CONTROL BLOCK:l 1

l l

l l

l (PLEASE PRINT ALL REQUIRED INFORMATION) 1 6

AME LCENSE NUMBEA T'Y) E YPE l Cl Al Rl SlS l1 l l 0 l 0 l-l 0l 0l0 l0 l0 l-l 0 l 0l l4l1 l 1l1 l1 l l0 l1l 7 89 14 15 25 26 30 31 32 CATEGORY TP 00CKET NUMBER EVENT DATE REPORT DATE 01 CONT l M l I l lL l lL l l 0 l 5 l 0l-l 0l 3l1 l? j l0 l 8 l 0l 5l 7l6 l l 0 l 8 l 1 l 9 l 7 l6 l 7 8 57 58 59 60 61 88 69 74 75 80 EVENT DESCRIPTION gg l On August 5,1976, a leak was discovered at a vent valve on the "B" Decay Heat Cooler l 7 89 80.a g l outlet.

Leakage had been experienced on this valve in the past, corrective action g fi 7 89 80 g l being unsuccessful. The "A" Decay Heat System was available. Nipple and saddle l

7 89 80 g l will be replaced; valve will be secured to a nearby column.

(R0 76-11) l [

7 89 80 DG I I

7 89 pnMs 80 -

E CCDE COMPONENT CODE A

M TL A VOLATcN 0

lC l F l W l Vl Al LlV l E l 2]

l Al lZ l9 l9 l9 l lNl 7 89 10 11 12 17 43 44 47 48

/

CAUSE DESCRIPTION O

l Previous rewelding and replacement attempts were unsuccessful. Wili secure Valve to j,

fcolumntopreventvibrationandexcessivetorqueonventcap.

Saddle and nipple wil-1 8

'7 89 80 -

j

] lbe sent to laboratory for testing.

g j m '

FACLITY METHOD OF Status

% POWER OTHER STATUS DISCOVERY DISCOVERY DESCAtPTON W

l0l0l0l l NA l y l

NA l

1 7 8 9

10 12 13 44 45 46 80 ACTMTY CONTENT

,s AELEASED OF PELEASE l AMOUNT OF ACTMTV LOCATON OF RELEASE'

~

h d

lZ l NA l

l NA l

7 8 9

10 11 44 45 80 '

PFRSONNEL EXPOS'JRES NUMBER TYPE DESCAiPTON 1

lO l ol ol LzJ l

Na I

7 89 11 12 13 80 ",

PERSONNEL INJURIES NUMBEA DESCAtPTION H l0l0l0l l

NA l

7 89 11 12 80 OFFSITE CONSEQUENCES

-l 1

l None l

7 89

~

80 LOSS OR OAMAGE TO FACIUTY

/

TYPE DE SCRIPTON

^

l M [Zj l

NA l

l 7 89 10 80 l

PUBLICITY 17 l Sacramento " Bee" and " Union" notified August 20, 1976 l

]

7 89 go

-;)

,/

1 ADOITIONAL FACTORS g o o 2 210 '73y eo si i

_l 7 89 eo R.W. Colombo /F.T. Eisenhutti NAME:

PHONE:

GPO 889 667 t.

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