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| {{Adams
| | #REDIRECT [[05000321/LER-1981-016-03, /03L-0:on 810306,review of Data Sheets from 810304 LLRT of Inboard MSIVs B21-F022A,B & C Determined That Valves Were Leaking in Excess of Tech Spec.Cause Unknown. Investigation Underway.Valves Will Be Repaired & Retested]] |
| | number = ML20010G320
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| | issue date = 09/03/1981
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| | title = During Review of Data Sheets for Refueling/Torus Mod Outage Determined That Valves Were Leaking.Caused by Debris &/Or Dirt on Valve Seats. Valves Lapped & Reseated & Successfully Retested
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| | author name = Coggin C
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| | author affiliation = GEORGIA POWER CO.
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| | addressee name =
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| | addressee affiliation = NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
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| | docket = 05000321
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| | license number =
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| | contact person =
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| | document report number = LER-81-016-03X, LER-81-16-3X, NUDOCS 8109150586
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| | package number = ML20010G310
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| | document type = LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT
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| | page count = 2
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| }}
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| {{LER
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| | Title = During Review of Data Sheets for Refueling/Torus Mod Outage Determined That Valves Were Leaking.Caused by Debris &/Or Dirt on Valve Seats. Valves Lapped & Reseated & Successfully Retested
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| | Plant =
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| | Reporting criterion =
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| | Power level =
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| | Mode =
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| | Docket = 05000321
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| | LER year = 1981
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| | LER number = 16
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| | LER revision = 3
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| | Event date =
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| | Report date =
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| | ENS =
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| | abstract =
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| }}
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| =text=
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| {{#Wiki_filter:_... -. - -.-
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| i
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| ' idRC FORM D6 U. S. NUCLE AR REGULATORY COMMISSION (7-77 ).
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| LICENSEE EVENT REPORT Update Report Previous Report 1bte 3-26-81 CONTROL tiLOCK: l l
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| l l
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| l l lh (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6
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| 1 7
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| I 8
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| 60 61 DOCKET NUMBER t4 69 EVENT DATE 74
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| .'S REPORT DATE
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| 'to
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| [
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| EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES h lo 121 I On 3-4-81. with Unit 1 shutdown for a refueling / torus modifiention nii t - 1 i
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| i O ta j l age, LLRTs of inboard MSIVs BM-F02?A. B. And C were performed.
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| On 3-1 loI.si L6-81, the data sheets were reviewed by the LLRT coordinator. and it was l' i
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| 10151 1 determined that the valves were leaking in excess of the 11.5 scfh per I
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| r i l o 16 I i valve limit of Tech Specs 4. 7. A. 2.h (test volume would not nressurize). 1
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| * Io 121 1 This is a repetitive occurrence - refer to LER 50-366/1981-001.
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| There l
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| i o n i I were no effects on public health or safety due to this event.
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| I 80 i
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| 7 8 9 DE CODE S BC DE COMPONENT CODE SUBC DE SU E
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| 7 8
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| 9 10 11 12 13 18 19 20 SE QUENTI AL OCCURRENCE REPORT REVISION LER:RO EVENT YEAR REPORT NO.
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| CODE TYPE N O.
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| ?3 30 31 32 t) A TO ON PL NT ME HOURS 22 S8 IT FORT 8.
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| 33 34 35 31 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h L'_l.o_j l Inspection of the valves showed that some debris and/or dirt had collectf litiiled on the valves' seats.
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| The valves were lapped and reseated and then I
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| liii2i lsuccessfu11y retested prior to startup.(as left leakages of 4.9 scfh). I llii3i l The unit is now in full compliance with the requirements of Tech Soecs I
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| ii pil4.7.A.2.h and no further reporting is required.
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| I 80 7
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| 8 g 1
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| ST S
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| '4 POWER OTHER STATUS dis O RY DISCOVERY DESCRIPTION ll1 lsl[Gj@ l0l0l Q@l NA l
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| [B_J@l Performed LLRT l
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| A TIVITY CO TENT RELEASED OF RELE ASE AMOUNT OF ACTIVITY LOCATION OF RELEASE l2161 LZJ @ LZ_J@l NA l
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| l NA l
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| 7 8 9 10 Il 44 45 80 PERSGNNEL E XPOSURES NUMBE R TYPE DESCRIPTION -
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| y l 0l 01 Ol@l Zl@l NA l
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| PERSONNE t imu'JiES i
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| NUMBER
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| ==DESCRIPTION==
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| [Lbj l 0l 01 Of@l NA l
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| 7 8 9 11 12 80 LOSS OF OR DAMAGE TO FACILITV TYPE
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| ==DESCRIPTION==
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| l.tuj Lzj@l NA l
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| PususTY 8109150586 810903 DESCRIPTION @
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| PDR ADOCK 05000321 NRC USE ONLY iSSuEo@l uS PDR l
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| 2 o 68 69 80 %
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| 7 8 9 10 C. L. Coggin - Supt. Plt. Eng. Serv.
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| . _. ~.
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| i-I d
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| LER #:
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| 50-321/198. J16, R1 Licensee:
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| Georgia Power Company Facility Name:
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| Edwin I. Hatch Docket #:
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| 50-321 1
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| =Narrative=
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| Report for LER 50-321/1981-0,16, R1 On 3-4-81, with Unit I shutdown for a refueling / torus modific-ation outage, LLRTs of inboard main steam i solation valves B21-F022A, B,
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| and C were performed per procedure HNP-1-3952, " Primary Containment Periodic Type B - and Type C Leakage Tests".
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| On 3-6-81, the LLRT i
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| coordinator reviewed the data sheets, and it was determined that the 1
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| valves were leaking in excess of the 11.5 scfh per valve limit of Tech Specs 4.7. A.2. h (test volumes would not pressurize).
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| This is a i
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| repetitive occurrence - refer to LER 50-366/1981-001.
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| There were no effects on public health or safety.
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| An investigation conducted to determine the
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| ==cause==
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| of the valves leaking showed that some debris had collected on the valve's seats.
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| The valves were lapped and reseated and then successfully retested-prior to startup (as left leakage of less than'4 scfh for B21-F022A; 4 scfh for B21-F022B; and 4.9 scfh for B21-F022C).
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| The unit is now in. full compliance with the requirements of Tech Specs 4.7. A.2.h and no further reporting is required.
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| }}
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| {{LER-Nav}}
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