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| {{Adams
| | #REDIRECT [[05000302/LER-1980-036-03, /03L-0:on 800827, B Decay Heat Pump Discharge Throttle Valve Would Not Control Flow in Automatic.Caused by Water in Sensing Line.Operability Restored by Blowing Down Sensing Line & Performing Functional Check]] |
| | number = ML19347D419
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| | issue date = 03/10/1981
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| | title = /03L-1:on 800827,DHV-111 Decay Heat Pump B Discharge Throttle Valve Would Not Flow in Automatic During Operability of Boron Injection Sources & Pumps Test SP-320. Caused by Air in Sensing Line.Sensing Line Vented & Checked
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| | author name = Hernandez V
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| | author affiliation = FLORIDA POWER CORP.
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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 = 05000302
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| | license number =
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| | contact person =
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| | document report number = LER-80-036-03L, LER-80-36-3L, NUDOCS 8103170576
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| | package number = ML19347D416
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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
| |
| | Title = /03L-1:on 800827,DHV-111 Decay Heat Pump B Discharge Throttle Valve Would Not Flow in Automatic During Operability of Boron Injection Sources & Pumps Test SP-320. Caused by Air in Sensing Line.Sensing Line Vented & Checked
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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 = 05000302
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| | LER year = 1980
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| | LER number = 36
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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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| tvsur casca,,nen Aac e.cs.sts c:ssa:nscas go,:j g While performing SP-320, Operabilit f Boron Injection Sources and Pumps, DHV-lli
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| , g,,, ( B" Decay Heat Pymp Dfscha rge Throttle Valve, would not control flow in automatic.
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| ,,,,,,This created an event contrary to Tech Spec 3.5.2.
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| DHV-111 did respond in manual
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| ,,,,,i control; Decay Heat Loop "A" provided redundancy. There was no effect upon the e a.., I general public health or safety. This is the first event of this type, and the
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| ,,, gvented prior to surveillance for three (3) months; it will be vented monthly until
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| 810 31705Not.
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| SUPOLEMENTARY INFORMATION Report No.:
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| 50-302/80-036/03L-1 Facility:
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| Crystal River Unit 3 Report Date:
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| March 10, 1981 Occurrence Date:
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| 27 August 1980 Identification of Occurrence:
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| Failure to aave two (2) independent ECCS subsystems cperable contrary to Technical Specification 3.5.2.
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| Conditions Prior to Occurrence:
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| Mode 1 power operation (80%).
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| Description of Occurrence:
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| At 0300 during performance of SP-320, Operability of Boron Injection Sources and Pumps, it was discovered that DHV-lll "B" Decay Heat Pump Discharge Throttle Valve would not con-trol flow in automatic. DHV-lli did respond in manual control; maintenance actions were initiated.
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| Designation of Apparent Cause:
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| The cause is attributed to air in the sensing lines.
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| Analysis of Occurrence:
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| There was no effect upon the general public health and safety.
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| Redundancy was maintained by the "A" Decay Heat Loop.
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| ==Corrective Action==
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| The sensing lines were vented and a functional check was com-pleted. The line was vented prior to surveillance checks for three months; it will be vented monthly until a permanent corrective action is implemented. An engineering evalcation of the control system for DHV-lli and DHV-110 is currently in prog ress.
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| (Reference REI 80-9-3). This revision corrects cause and corrective action of Revision 0.
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| Failure Data:
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| This is the first occurrence for DHV-lll, and the tenth report made under this Specification.
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| /rc
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| }}
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| {{LER-Nav}}
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