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| {{Adams
| | #REDIRECT [[05000366/LER-1981-053-03, /03L-0:on 810611,turbine First State Pressure Permissive Switches Found Out of Tolerance While Performing Barksdale Pressure Switch Calibr.Probably Caused by Setpoint Drift.Switches Recalibr]] |
| | number = ML20009F540
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| | issue date = 07/02/1981
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| | title = LER 81-053/03L-0:on 810611,turbine First State Pressure Permissive Switches Found Out of Tolerance While Performing Barksdale Pressure Switch Calibr.Probably Caused by Setpoint Drift.Switches Recalibr
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| | author name = Nix R
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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 = 05000366
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| | license number =
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| | contact person =
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| | document report number = LER-81-053-03L, LER-81-53-3L, NUDOCS 8107310283
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| | package number = ML20009F537
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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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| =Text=
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| {{#Wiki_filter:U. S. NUCLEAR REGULATO?.Y COMMif,SION NRC FORM 366 (7 77)
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| . LICENSEE EVENT REPORT (PLEASE I 41NT OR TYPE ALL REQUIRED FWORMATION)
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| CONTROL BLOCK: l l l l l l lh e
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| lo l t l l Gl Al El Il Hj 2l@l 0l 0l -l O l 0l O l 010 l - l 01 O .
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| 26 l@l 26 4 UCENSE l l l 1TYPE l Il JOll@l5 7 CAl I $8l@
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| 7 8 9 LICENSEE CODE 14 15 LICENSE NUMtlE n CON'T IoI11 3E l L j@l 01 S l 0 l 01 01 3 l 6 I 686 l@l 69 016 l 1 1 1 l 8 l 1 75l@l0171Ol218Il EVENT OATE 74 REPORT DATE 80 l@
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| / 8 60 61 OOCKET NUMBER EVENT DESCRIPTION AND PnOBABLE CONSEQUENCES h ITTTI L With the plant in steady state operation at 1927 MWt and while performina I iO i3i l HNP-2-5279, Barksdale Pressure Switch Calibration, 2C71-N003A,B and C, l I o 141 l Turbine First State Pressure, Permissive Switches, were found out of tol- l lO isi l erance. Tech Specs Table 3.3.1-1, Item 9, requires actuation at 160 psig l 10181 l +12 psig head correction. Plant operation nor the health and safety of I l0l7j I the public was affected. This is a non-repetitive event. I I
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| 10181 l 7 8 9 DE CODE S BC E COVPONENT CODE SUSC DE S E IW l. Il . Al@ L.E.lO LE_j @ l I l N l S l T l R l U l@ l Sl@ [__Z_j 20 9 13 11 :2 13 18 19 7 8 OCCURRENCE REPORT R EVISION SEQUENTIAL EVENT YE AR REPORT NO. CODE TYPE NO.
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| O a&P R; LER RO l8l1l l---J i 015l3l 26 y27 l013 l 28 29 l Ll 30
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| [- _,J 3?
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| l0 l 32
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| .,_ 21 22 23 24 T N AC O ON PL NT VET HOURS S8 iT POR B. SU PLIE MAN F CTURER I33E l@LZJ@ 34 LZJ@
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| 3S Izl@ J/101010101 36 40 LY_J 43
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| @ lNl@
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| 42 lNl@
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| 43 lBl0l6l9l@ ,
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| 44 47 CAUSE DESCRIPTION AND COARECTIVE ACTIONS h The cause of this event has been attributed to setonint drift. The l l i 10 l l I
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| I1 liI I switches were recalibrated oer HNP-2-5279 Barksdale Pressure Switch I li12i 1 Calibration, and functionally tested successfully oer HNP-2-3010. I I
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| ml Turbine First Staae Pressure Permi,ssive Functional Test and Calibration. I I
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| t i l41 1 80 7 8 9 ST S % POWER OTHER STATUS IS O Y DISCOVERY DESCRIPTION li is ] l El@ l 0 l 7 l 9 l@l NA l l B l@l Performing normal surveillance. l ACTIVITY CO TENT RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE R [_Z_j @ (,,Zj@l '
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| NA l l NA l
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| PeRSONNet EXPOSURES NuM8eR TYPE OeSCRiPriON @
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| l1I7llO!0l0l@lZl@l NA l PERSONNE L INJU IES Nuu8ER oESCRiPTiON@
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| [1_l,,8,.] l Ol 01 Ol@l NA l 12 80
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| -7 8 9 11
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| ' ^
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| '#5 E usa ^#0~' '''' " " @
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| [_119_l (_ Zj@l NA l 8 9 10 80 7
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| ' "' NRC UsE OND ,
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| iSSuEo OESCF 8107310283 810702
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| [.3Lo]L3181 05000366 NA l lllllllIllIIl5 7 8 9 10
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| [DRADOCK PDR 88 s, 80 ;
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| I - -- . M -367-7781 2
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| /
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| e LER No.: 50-366/1981-053 Licensee: Georgia Power Company Facility: Edwin I. Hatch Docket No. : 50-366 Narrative Report for LER 50-366/1981-053 On June 11, 1981, while the plant was in steady state operation at 1927 MWt and while performing HNP-2-5279, Barksdale Pressure Switch Calibration, 2C71-N003 A,B and C, Turbine First Stage Pressure Permissive Switches, were found out of tolerance. Switch 2C71-N003D was found to be operable and actuating within expected tolerance. Tech Specs Table 3.3.1-1, Item 9, requires actuation at 160 psig + 12 psig head correction. Plant operation nor the health and safety of the public was affected by this event. This is a non-repetitive event.
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| The cause of this event has been attributed to setpoint drift.. The switches was recalibrated per HNP-2-5279, Barksdale Pressure Switch Calibration, and functionally tested successfully per HNP-2-3010, Turbine First Stage Pressure Permissive Functional Test and Calibration, and returned to service.
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| Unit I uses the same type switch -for this application. A generic review revealed no inherent problems.
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| i i
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| I
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| '}}
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