Similar Documents at Hatch |
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LER-1979-106, /03L-0:on 790919,several Operational Cycle & Other Surveillances Were Overdue.Caused by Misinterpretation of Tech Specs Re Starting Time for Surveillances.Exemption Requested & Granted |
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| 3661979106R03 - NRC Website |
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U. S. NUCLE AH HEGUL ATONY COMMISSION
- NHC F ORM 366
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LICENSEE EVENT REPORT coNTngloco
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EVENT DESCRIPTION AND PROBACLE CC'dEff)ENCES h with the reactor in steady state power operation, a review of l
lfo_UU { On September 19, 1979, [o L.O burveillances required by the Technical Specifications showed that a number of opera i
d to be_ done on an interval of at least once 1
I o 141 Lionc.t1_.c.yc1c_surveiUanc.nj.tttoce_ te!LLL rA d other surveHlances.1 required to be done on an interval of at leastj 8 L pe t_18 rf m Lb al_.M t LEji] Lance _per_.l.,ycarsl_werEnv.erdum._iA_they 3iere not performed within the allottedJ l ' 1 LJ.ica_ir<terv1Lalus_tbe_ ass.orjAteLatacemdasiJ257, of the surveillance intervall J
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[ Attached is a listing of all such surveillances showing due dates.
C O*.W VALVE SYS f E M
CAUSE
CAUSE CODE 400E SUacgor COMPONtNT CODE SUBCQgE SygCQgg I 71 Zl@ l XI@ l x j@ [z tz (z (z Iz Iz l@ [zjg l zi@
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31 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECDVE ACTIONS h cause__of the event was a mis-interpretation of the Technical Specification in
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1__i 101 LItc The licensee bel-l LLLL.J [ reqanLip the startinq time for the aforetrentioned surveillances.
[TT 1 L ieved that the time startina point was,the date of the receipt of the operatinq lic-I furthnrmore, the licensee believed that this interpretation had l
lil,] [ ense for Hatch 2:
[J_Jd.J 1 the concurcq11cp of the NRC.
However, a cnnversatine, with thn Npr nn con tinuedh 83 7
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Georgia Power Company Plant E. I. Hatch Baxley, Georgia 31513 I,
Event Description and Probable Consequences a result of this event; there is no There are no probable consequences asThis is a non-repetitive event.
ef fect on public health or safety.
Cause Description and Corrective /,ctionsshowed that the NRC's current interpretation fixes the start-17, 1979, time at either the first time the procedure was performed or the twe September at which another test was perforuied to prove system operability prior to the ing system being placed in service (if the surveillance was never performed).
Corrective action for all of the surveillances except HilP-2-3359 was to request Technical Specification exemption for the surveillance to allow the licensee to wait until the scheduled outage of March 1979, to perform the surveillances; the exemption was granted in Technical Specification Amendment Number 12 on September 21, 1979.
Performance of HNP-2-3359 was begun on October 10, 1979.
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Description
Tech Spec.
I n i t t. a 1 Due 1.atest Possible
.Wer Reference Performance Data Dste Data II'!i! C 5i'IT~~~~
APRM Tir.e Resoonse Table 1.3.1-2a, b ------
Overdue 2
Test HNi-->'
'q Coca Spray Auto 4.5.1.1.d 10-1-77 4-1 74 5-15 74 A.,
Actuntion
""pAF-'
Safetv Pelief' C5. 6 5-11 77 2-11-79 CC79 Valve Operability H"P
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2'o' dPCI 'J a l v e Operab- ~C69 E-17 77 P-17-74 7-1-70
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111tv (Stem Move-ment Verification 1
k-g u ; S i' i Fire Hose Overdue q
Station Insoection f
o t P- ?
- o RCIC Valve Operab-CO. 5
!I-1-77 2 T74 ti-15-79 111tv ('1 tem Move-nant Varification Rectreulation Sys-CO. 5 10-25 77 C?T79 0 E-70
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tem Valve Operat-111ty (Stem Move-ment Verification m?b4 Seactor Recire Dmo C6. 2. 6.1. a.1. ( b )
9-12-77 b1?-70 7-P C7Q Motor Protection Sys tm Integrated L.
Functinnal Taat
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2 SLC Tast Actuation 4.0.5, 4.1.5.c 11-2-77 6-2-70 0-1K-79 Frns Control Room 3.1.?-1(3d)
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bydradiic S ma b b e r 4.7.h.4 Overkue F u n c t i ce, a 1 Test h
h.,.6.1.1.b,d 11-2-77 5-2-70 9 - 1 r, 7 6
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Testing of S D:1T s
4 Filtar Trains
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- 9 Reactor Rectre.
C C 3.1.a.1.(a) T26~77
~10-?0-78 3-6 To I
Tunn Motor Prot-s.
action System Rel-av Calibration 2 5 #l
Triaxial Peak Rec-k.T~5.2-1(2a-2f)
Overdue 4
ordir.a Accelecom-etors Calibration Fira Protection T.7.6.1.d 0 I5-77 b 1 C7a C30 70
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v SVSteM SV s t e f'l Flu,5 Fire Pratention 4.7 5.1.g 5-?L-7I~~
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Ficu Test Diewt Fire Puma C C CT~2.c 5-2EIM 11!? C7'-
C+!76 4
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Insnantion, Start and *-ir Fir-Pm e Diesel 4.7. C C3.c Overdoa 4
- ta t t oav Irsractinn 5
P00R ORINAL
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b Sprinkler Hand Air 4.7. C2.c Oveadue Flow Tast (1 year)
CO2 System Valves 4.7.6.3.5 6 ?7-74 12-?7 75 5-11 76
,L and Ds aip e r s Actust-ton a9d Flow Hosa S Gtion Valve CE63. c Overdue b
Operability and (1 year)
Hose Hydro Test Diesel Generator 4.8.1.1.2.c.4 10-25-77 4-25-79 4 T 74 b
Load Peject Capthi1ity Diesel Generator 4.6.1.1.2.c.7 10-25 77 4-25-79 Q-5-74 b
S h e d d i n a; and Sub-sequan* Loadine Diasel Generator 4.8.1.1.2.c.9 10-25-77 4-25-79 4 C7 4 b
24-houa Loaded Run Test Safety injection
- 4. [1.1.2.c.12 10-25-77 4-25-74 4 E-79 L
Override of Diesel Geneaatoa Tast Mode D' i e s e l Generator 4.8.1.1.2.c.11 6-16-77 12-16-78 4-30-79
'L Fuel Transfer Capsbility Molded Case Cir-4.8.2.6.1.a.2 Overdue b
cuit Breaker Func-tinnal Test a
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| 05000366/LER-1979-001, Forwards LER 79-001/03L-0 | Forwards LER 79-001/03L-0 | | | 05000366/LER-1979-001-03, /03L-0 on 781229:in Cold Shutdown While Performing HNP-2-3154,reactor Water Level Instrument Switch 1 Was Found Inoperative Due to Broken Foot, & Switch 3 Actuated at 122.2 in H2O Input | /03L-0 on 781229:in Cold Shutdown While Performing HNP-2-3154,reactor Water Level Instrument Switch 1 Was Found Inoperative Due to Broken Foot, & Switch 3 Actuated at 122.2 in H2O Input | | | 05000321/LER-1979-001, Forwards LER 79-001/03L-0 | Forwards LER 79-001/03L-0 | | | 05000321/LER-1979-001-03, /03L-0 on 790109:during Steady State Power at 2400 Mwt,Plant Personnel Inadvertently Opened Both Doors of Reactor Bldg 130-ft Airlock R106.For Reasons Unknown,Switch Which Allows Defeat of Interlock Was Operated | /03L-0 on 790109:during Steady State Power at 2400 Mwt,Plant Personnel Inadvertently Opened Both Doors of Reactor Bldg 130-ft Airlock R106.For Reasons Unknown,Switch Which Allows Defeat of Interlock Was Operated | | | 05000321/LER-1979-002, Forwards LER 79-002/03L-0 | Forwards LER 79-002/03L-0 | | | 05000321/LER-1979-002-03, /03L-0 on 790111:during Normal Operation,Hpci Steam Supply valves,E41-F002 & E41-F003,automatically Isolated Due to Equipment Room High Differential Temp & Cold Outside Air Flowing Across Inlet Air Temp Elements | /03L-0 on 790111:during Normal Operation,Hpci Steam Supply valves,E41-F002 & E41-F003,automatically Isolated Due to Equipment Room High Differential Temp & Cold Outside Air Flowing Across Inlet Air Temp Elements | | | 05000366/LER-1979-002, Forwards LER 79-002/03L-0 | Forwards LER 79-002/03L-0 | | | 05000366/LER-1979-002-03, /03L-0 on 791231:in Cold Shutdown While Performing HNP-2-3456,overvoltage Trip Setpoint for Reactor Protection Sys Motor Generator Set B Was Found at 133.5 Volts Alternating Current.Caused by Setpoint Drift | /03L-0 on 791231:in Cold Shutdown While Performing HNP-2-3456,overvoltage Trip Setpoint for Reactor Protection Sys Motor Generator Set B Was Found at 133.5 Volts Alternating Current.Caused by Setpoint Drift | | | 05000321/LER-1979-003-03, /03L-0 on 790114:during Normal operation,hi-flow Alarm Occurred on Stack Effluent Radiation Monitor.Sample Pump Was Found Not Running.Restart Failed,As Did Spare Pump. Caused by Failure of Operating Pump Carbon Valves | /03L-0 on 790114:during Normal operation,hi-flow Alarm Occurred on Stack Effluent Radiation Monitor.Sample Pump Was Found Not Running.Restart Failed,As Did Spare Pump. Caused by Failure of Operating Pump Carbon Valves | | | 05000321/LER-1979-003, Forwards LER 79-003/03L-0 | Forwards LER 79-003/03L-0 | | | 05000366/LER-1979-003, Forwards LER 79-003/03L-0 | Forwards LER 79-003/03L-0 | | | 05000366/LER-1979-003-03, /03L-0 on 790102:in Cold Shutdown While Performing HNP-2-3173 on Reactor Pressure Switch 2B21-N021C,setpoint Found Above 600 Psig for Switch No 2.Caused by Switch Setpoint Drift | /03L-0 on 790102:in Cold Shutdown While Performing HNP-2-3173 on Reactor Pressure Switch 2B21-N021C,setpoint Found Above 600 Psig for Switch No 2.Caused by Switch Setpoint Drift | | | 05000321/LER-1979-004-03, /03L-0 on 790119:during Performance of Procedure HNP-1-3302,armature Winding of HPCI Injecting Valve Motor (E41-F006) Burned When Valve Was Opening.Minor Internal Disorder Probably Led to Overheat | /03L-0 on 790119:during Performance of Procedure HNP-1-3302,armature Winding of HPCI Injecting Valve Motor (E41-F006) Burned When Valve Was Opening.Minor Internal Disorder Probably Led to Overheat | | | 05000366/LER-1979-004, Forwards LER 79-004/03L-0 | Forwards LER 79-004/03L-0 | | | 05000366/LER-1979-004-03, /03L-0 on 790104:review of HNP-2-3610-0 (RHR Pump Operability) Data Sheet Revealed Pump Delta Requirements Not Met.Caused by Personnel Error Resulting from New Procedures | /03L-0 on 790104:review of HNP-2-3610-0 (RHR Pump Operability) Data Sheet Revealed Pump Delta Requirements Not Met.Caused by Personnel Error Resulting from New Procedures | | | 05000321/LER-1979-004, Forwards LER 79-004/03L-0 | Forwards LER 79-004/03L-0 | | | 05000366/LER-1979-005-03, /03L-0 on 790103:under Frequency Trip Setpoint Found at 54.1HZ for Motor Generator Set A.Caused by pre-op Test on Sys.Surveillance Test HNP-2-3456 Contains Setpoint More Conservative than Tech Specs | /03L-0 on 790103:under Frequency Trip Setpoint Found at 54.1HZ for Motor Generator Set A.Caused by pre-op Test on Sys.Surveillance Test HNP-2-3456 Contains Setpoint More Conservative than Tech Specs | | | 05000366/LER-1979-005, Forwards LER 79-005/03L-0 | Forwards LER 79-005/03L-0 | | | 05000321/LER-1979-005, Forwards LER 79-005/03L-0 | Forwards LER 79-005/03L-0 | | | 05000321/LER-1979-005-03, /03L-0 on 790118:while Performing HNP-1-350-M,TDR G31-R616D Failed to Actuate at Its Setting of 15-s.Two-h Time Limit Exceeded W/Sys Down for Repair.Caused by Loose Screw on Diaphragm,Resulting in Component Failure | /03L-0 on 790118:while Performing HNP-1-350-M,TDR G31-R616D Failed to Actuate at Its Setting of 15-s.Two-h Time Limit Exceeded W/Sys Down for Repair.Caused by Loose Screw on Diaphragm,Resulting in Component Failure | | | 05000366/LER-1979-006, Forwards LER 79-006/03L-0 | Forwards LER 79-006/03L-0 | | | 05000366/LER-1979-006-03, /03L-0 on 790102:reactor Pressure Instrument Ft&C, Relay 2B21-K34A Failed to Operate W/Actuation of 2B21-N021A. Caused by Open Coil | /03L-0 on 790102:reactor Pressure Instrument Ft&C, Relay 2B21-K34A Failed to Operate W/Actuation of 2B21-N021A. Caused by Open Coil | | | 05000321/LER-1979-006, Forwards LER 79-006/03L-0 | Forwards LER 79-006/03L-0 | | | 05000321/LER-1979-006-03, /03L-0 on 790122:during Normal Startup,Reactor Operated Above 1% for Over 24-h W/O Critical Mass Peaking Factor Being Calculated.Caused by Computer Limitations for Low Power Operation | /03L-0 on 790122:during Normal Startup,Reactor Operated Above 1% for Over 24-h W/O Critical Mass Peaking Factor Being Calculated.Caused by Computer Limitations for Low Power Operation | | | 05000321/LER-1979-007, Forwards LER 79-007/03L-0 | Forwards LER 79-007/03L-0 | | | 05000321/LER-1979-007-03, /03L-0 on 790120:reactor Core Isolation Cooling Min Flow Valve (E51-F019) Failed to Close Automatically. Caused by Failure of Open Limit Switch,Resulting in Damage to Valve Operator & Torque Switch | /03L-0 on 790120:reactor Core Isolation Cooling Min Flow Valve (E51-F019) Failed to Close Automatically. Caused by Failure of Open Limit Switch,Resulting in Damage to Valve Operator & Torque Switch | | | 05000321/LER-1979-008-03, /03L-0 on 790121:reactor Max Cooling Rate Exceeded Due to Injection of Condensate Feedwater Into Reactor Vessel During Slowdown.Caused by Pressure Decreasing Below Condensate Booster Pump Discharge Pressure | /03L-0 on 790121:reactor Max Cooling Rate Exceeded Due to Injection of Condensate Feedwater Into Reactor Vessel During Slowdown.Caused by Pressure Decreasing Below Condensate Booster Pump Discharge Pressure | | | 05000366/LER-1979-008, Forwards LER 79-008/03L-0 | Forwards LER 79-008/03L-0 | | | 05000366/LER-1979-008-03, /03L-0 on 790110:reactor Core Isolation Cooling Steam Line Differential Pressure Low Switch Found to Actuate at 119 in H2O & High Switch at +122 in H2O.Caused by Switch Setpoint Drift | /03L-0 on 790110:reactor Core Isolation Cooling Steam Line Differential Pressure Low Switch Found to Actuate at 119 in H2O & High Switch at +122 in H2O.Caused by Switch Setpoint Drift | | | 05000321/LER-1979-008, Forwards LER 79-008/03L-0 | Forwards LER 79-008/03L-0 | | | 05000366/LER-1979-009-03, /03L-0 on 790111:low Switch & High Switch of 2E51-NO18 Operated Contrary to Tech Specs.Caused by Switch Setpoint Drift.Corrected by Performance of HNP-2-5202 Procedure | /03L-0 on 790111:low Switch & High Switch of 2E51-NO18 Operated Contrary to Tech Specs.Caused by Switch Setpoint Drift.Corrected by Performance of HNP-2-5202 Procedure | | | 05000366/LER-1979-009, Forwards LER 79-009/03L-0 | Forwards LER 79-009/03L-0 | | | 05000321/LER-1979-009, Forwards LER 79-009/03L-0 | Forwards LER 79-009/03L-0 | | | 05000321/LER-1979-009-03, /03L-0 on 790123:during Normal Operation,While Performing Maint on Reactor Water Cleanup Pumps,Personnel Unable to Sample Primary Coolant Every 4-h.Caused by Stopped Up Redundant Sample Line | /03L-0 on 790123:during Normal Operation,While Performing Maint on Reactor Water Cleanup Pumps,Personnel Unable to Sample Primary Coolant Every 4-h.Caused by Stopped Up Redundant Sample Line | | | 05000321/LER-1979-010-03, /03L-0 on 790124:during Normal pre-conditional Ramp,Determined That a Reactor Coolant Chemistry Sample Could Not Be Obtained.Caused by Both Reactor Water Cleanup Pumps Being Inoperable & Primary Sample Line Clogged | /03L-0 on 790124:during Normal pre-conditional Ramp,Determined That a Reactor Coolant Chemistry Sample Could Not Be Obtained.Caused by Both Reactor Water Cleanup Pumps Being Inoperable & Primary Sample Line Clogged | | | 05000321/LER-1979-010, Forwards LER 79-010/03L-0 | Forwards LER 79-010/03L-0 | | | 05000366/LER-1979-010, Forwards LER 79-010/03L-0 | Forwards LER 79-010/03L-0 | | | 05000366/LER-1979-010-03, /03L-0 on 790117:in Cold Shutdown,While Performing HNP-2-3820,switches 2B21-N301 F,H & L Did Not Actuate.Caused by Switch Diaphragm Failure | /03L-0 on 790117:in Cold Shutdown,While Performing HNP-2-3820,switches 2B21-N301 F,H & L Did Not Actuate.Caused by Switch Diaphragm Failure | | | 05000321/LER-1979-011, Forwards LER 79-011/03L-0 | Forwards LER 79-011/03L-0 | | | 05000366/LER-1979-011, Forwards LER 79-011/03L-0 | Forwards LER 79-011/03L-0 | | | 05000366/LER-1979-011-03, /03L-0 on 790117:during Normal Startup Test & Reactor in Cold Shutdown,Review of HNP-2-3160 (RHR Pump Operability) Revealed Required Flow Not Being Met.Caused by Procedural Error by Personnel | /03L-0 on 790117:during Normal Startup Test & Reactor in Cold Shutdown,Review of HNP-2-3160 (RHR Pump Operability) Revealed Required Flow Not Being Met.Caused by Procedural Error by Personnel | | | 05000321/LER-1979-011-03, /03L-0 on 790124:while in Cold Shutdown,Both Doors of Reactor Bldg Were Opened,Violating Secondary Containment. Bracket Into Which Dead Bolt Projects Was Bent,Preventing Interlock from Functioning.Bracket Was Repaired | /03L-0 on 790124:while in Cold Shutdown,Both Doors of Reactor Bldg Were Opened,Violating Secondary Containment. Bracket Into Which Dead Bolt Projects Was Bent,Preventing Interlock from Functioning.Bracket Was Repaired | | | 05000366/LER-1979-012, Has Been Voided | Has Been Voided | | | 05000321/LER-1979-012-03, /03L-0 on 790124:during Shutdown,High Pressure of 200 to 300 Psig Existed in RHR Heat Exchangers.Caused by Slow Leak Past E11-F015A Valve | /03L-0 on 790124:during Shutdown,High Pressure of 200 to 300 Psig Existed in RHR Heat Exchangers.Caused by Slow Leak Past E11-F015A Valve | | | 05000321/LER-1979-012, Forwards LER 79-012/03L-0 | Forwards LER 79-012/03L-0 | | | 05000366/LER-1979-013, Forwards LER 79-013/03L-0 | Forwards LER 79-013/03L-0 | | | 05000321/LER-1979-013-01, /01X-1 on 790131:scram Received on Intermediate Range Monitor Hi-Hi Trip at Notch 26 of Rod 42-15.Caused by Notches Being Withdrawn Past Point Required to Achieve Criticality.Procedures Revised | /01X-1 on 790131:scram Received on Intermediate Range Monitor Hi-Hi Trip at Notch 26 of Rod 42-15.Caused by Notches Being Withdrawn Past Point Required to Achieve Criticality.Procedures Revised | | | 05000366/LER-1979-013-03, /03L-0 on 790125:while in Refuel Mode,Control Rod & Control Rod Drive Removal Was Begun Before Performing one- Rod Out Refueling Interlock Operability Test.Caused by Omission of This Step in Procedure.Procedure to Be Revised | /03L-0 on 790125:while in Refuel Mode,Control Rod & Control Rod Drive Removal Was Begun Before Performing one- Rod Out Refueling Interlock Operability Test.Caused by Omission of This Step in Procedure.Procedure to Be Revised | | | 05000321/LER-1979-013, Foward LER 79-013/01X-1 | Foward LER 79-013/01X-1 | | | 05000321/LER-1979-014, Forwards LER 79-014/03L-0 | Forwards LER 79-014/03L-0 | |
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