05000259/LER-1981-037-01, During Ultrasonic Testing,Indication Confirmed on Vessel Side of Reactor Water Cleanup Sys Inboard Primary Containment Isolation Valve. Cause Unknown.Gate Valve Replaced: Difference between revisions

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{{Adams
#REDIRECT [[05000259/LER-1981-037-01, /01-3:on 810629,indication Observed on Vessel Side of Valve Weld During Reactor Water Cleanup Sys Inboard Primary Containment Isolation Valve 69-1 Ultrasonic Insp on 810621]]
| number = ML20010B917
| issue date = 08/11/1981
| title = During Ultrasonic Testing,Indication Confirmed on Vessel Side of Reactor Water Cleanup Sys Inboard Primary Containment Isolation Valve. Cause Unknown.Gate Valve Replaced
| author name = Holder G
| author affiliation = TENNESSEE VALLEY AUTHORITY
| addressee name =
| addressee affiliation = NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
| docket = 05000259
| license number =
| contact person =
| document report number = LER-81-037-01X, LER-81-37-1X, NUDOCS 8108180477
| package number = ML20010B914
| document type = LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT
| page count = 1
}}
{{LER
| Title = During Ultrasonic Testing,Indication Confirmed on Vessel Side of Reactor Water Cleanup Sys Inboard Primary Containment Isolation Valve. Cause Unknown.Gate Valve Replaced
| Plant =
| Reporting criterion =
| Power level =
| Mode =
| Docket = 05000259
| LER year = 1981
| LER number = 37
| LER revision = 1
| Event date =
| Report date =
| ENS =
| abstract =
}}
 
=text=
{{#Wiki_filter:_
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UPDATE REMRT - PREVIOUS REPORT DATE 7 /1U/g 1EA3 KEGMATD COMISSION LICENSEE EVENT REPORT
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8 9 LICENSEE CODE 14 15 LICENSE NUMBEH 25 26 LICENSE TYPE JO 57 CAT 68 CON'T M
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8 60 61 DOCK ET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 l
EVENT OESCRIPTION ANO PROBABLE CONSEQUENCES h Lo_RJ l Durine refueling outage, reactor water cleanup system inboard primary containment i
An indication was l o l 3 l l isolation valve 69-1 was ultrasonically inspected on 6/21/81.
I o I 41 I observed on the vessel side of the valve weld.
(T.S. 3.6.G)
A subsequent radio-l l o l <> l l graph showed no indications. On 6/24/81 a UT inspection by a level II inspector g
There was no danger to the health or safety of the public. g 1016 ] l confirmed an indication.
O 7 l Previous similar event: BFRO-50-259/80004.
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==CAUSE==
CAUSE COMP.
VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE E
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13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION LE R kVENTYEAR REPORT NO.
CODE TYPE No.
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J3 34 Jb 36 31 40 41 42 43 44 47 CAUSE DESCRIPTION ANO CORRECTIVE ACTIONS 21 The Velan Model 900 lb, 6 inch, SS stainless I n J o l l Cause is unknown at this time.
steel gate valve, rated at 1146 psi at 500 degrees fahrenheit (normal operating I
i i i
,, l pressure 960 psi) was replaced. The indication is. acceptable under.the summer l 1978 Addenda to ASME Section XI Code. This c'oneidered a raedom event and no
, i [il4i l further recurrence control is required.
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a 9 STA J "6 POWER OTHER ST ATUS 1 O R '.
OlSCOVERY DESCRIPTION li lu l [gj@ l 0] 0l 0l@l NA
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" Ac'Tivits ColrENT AMOUNT OF ACTIVITY @ l LOCATION OF RELEASE LLLJ LzJ @D OF RELEASFlz_J@l RELEME N
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n 9 10 PuauCi r y 8108180477 810811 NRc USE ONLY PDR ADOCK 05000259 1 l ol [N,jh[oEsCmPrioN
. e.uE n NA S
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IIIIlIIIIIIIII 8i8 69 80 5 Gene Holder (205) 729-6134 a 9 10 o
NAVE OF PREPAPER PHONE:
}}
 
{{LER-Nav}}

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