05000368/LER-1980-050-03, /03X-2:on 800717,0804 & 29,while Testing Steam Driven Emergency Feedwater Pump 2P7A,turbine Driver 2k3 Tripped on Overspeed.Cause Appears Related to Hydraulic Control Problem During Initial Start of 48-h Idle Turbine: Difference between revisions

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{{Adams
#REDIRECT [[05000368/LER-1980-050-03, Steam Driven Emergency Feedwater pump,2P7A,turbine driver,2K3,tripped on Overspeed Following Manual Start.Caused by Design Deficiency.Governor Valve Control Modified]]
| number = ML19338F197
| issue date = 09/29/1980
| title = /03X-2:on 800717,0804 & 29,while Testing Steam Driven Emergency Feedwater Pump 2P7A,turbine Driver 2k3 Tripped on Overspeed.Cause Appears Related to Hydraulic Control Problem During Initial Start of 48-h Idle Turbine
| author name = Shively C
| author affiliation = ARKANSAS POWER & LIGHT CO.
| addressee name =
| addressee affiliation = NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
| docket = 05000368
| license number =
| contact person =
| document report number = LER-80-050-03X, LER-80-50-3X, NUDOCS 8010070622
| package number = ML19338F188
| document type = LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT
| page count = 1
}}
{{LER
| Title = /03X-2:on 800717,0804 & 29,while Testing Steam Driven Emergency Feedwater Pump 2P7A,turbine Driver 2k3 Tripped on Overspeed.Cause Appears Related to Hydraulic Control Problem During Initial Start of 48-h Idle Turbine
| Plant =
| Reporting criterion =
| Power level =
| Mode =
| Docket = 05000368
| LER year = 1980
| LER number = 50
| LER revision = 3
| Event date =
| Report date =
| ENS =
| abstract =
}}
 
=text=
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w' UPDATE REPORT - PREVIOUS REPORT DATE 8/15/80 NRC FORM 364 U. 5. NUCLE AR REGULATORY COMMISSION (7 778 LICENSEE EVENT REPORT EXHIBIT A CONTSOb 5LOCAc-l l l l l l l (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 O
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8 to 68 OOCsLET Nutt0En " " 68 69 EVENT DATE 34 75 HE, ORT OATE EVENT DESCRIPTION AND PROBA8LE CONSEQUENCES h j
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i 0" ring Mode 1 epeartien, "ile testing the Stc= Driven E=rgency O 2 i Feedwater Pump, 2P7A, the turbine driver. 2K3. triooed on oversoeed i
O. I on the following dates: 7/17/80, 8/4/80. 8/29/80. The electric I
iO isi i driven Emergency Feedwater Pump & associated valves were verifled i
O 6 l operable. This occurrence is similar to LER's 50-368/79-055. 79-072.
I O i I 79-081. 79-104. 80-022. 80-030J80-036.
Reoortable oer T.S. 6.9.1.9.b. I IOfalI l
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23 34 35 36 33 40 el 42 43 44 47 CAUSE DESCR.PTION AND CORRECMVE ACTIONS h m1 The cause of the occurrence aopears to be related to a hydraulic I
Frrr1 I cor.crol problem during the initial start of the turbine after an idle i
i 2 I period in excess of 48 hours.
The Steam Driven EFW Pumo is beina i
[III]I started every 24 hours to verify operability.
Investiaation is i
I continuina <ith enaineerino and vendor. assistance.
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'O 08 G3 po Chris N. Shively WMb3B NAME OF PREPARER
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8910070622
}}
 
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Latest revision as of 02:11, 18 September 2025