ML19309E120

LER 80-013/03L-0:on 800326,while Performing Surveillance Test on Hpci,Turbine Speed Would Not Increase Above 800 Rpm. Caused by Failure of Flow Controller.Flow Controller Was Replaced

ML19309E120
Person / Time
Site:	Vermont Yankee
Issue date:	04/14/1980
From:	Murphy W VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19309E118	List: ML19309E117 ML19309E120
References
LER-80-013-03L, LER-80-13-3L, NUDOCS 8004180413
Download: ML19309E120 (1)

Text

U(oLJn) G U 5. NUCLEAH MhUULAIGHY CUMMibblUN

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- LICENSEE EVENT REPORT LER 80-13/3L CONTROL 8 LOCK: l 1

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(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) lo lil8i 3v I r LICENSEEI v Iv CODE I s 11 l@l n In l l o in lo lo in l in lo l@l6 I,11 25 26 1, I, l@l LICENSE TYPE 30 I

5 7 C A T 58 l@

7 14 15 LICENSE NUMBER COA 5'?

l0lil 7 8 s0 RCe 60 I L @l O DOCKET 61 l 5 l NUMBER 0 l 0101217 68 li69 hl oEVENT I l lo DATE I6 lA In h ln la 74 75 l1 I4 REPORT DATEl RI 80 nI h EVENT DESCRIPTION AND PROBA8LE CONSEQUENCES h IOI2l lWhile oerforming a surveillance test on HPCI.the turbine soeed would not increase I 10 l 3 l labove approximately 800 RPM. System was declared inocerable and alternate testing i l o l 4 I l began as required by Tech. Soec. , Section 3. 5.E.2. Turbine would ooerate manually 1 10ls] lbut would not accelerate in Auto. The flow controller was replaced and turbine I lo is l looerated satisfactorily. Based on the above, the potential consecuences to the health!

l 017 l l and safety of the public were minimal. No previous similar occurrences have been l loisl l reported to the Commission. I SO 7 8 9 SYSTEM CAUSE CAUSE COMP. VA LVE CODE CODE SU8 CODE COMPONENT CODE SU8 CODE SU8 CODE lo19l 7 8 l S l F l@ lE lh lG lh l II Nl S l Tl Rl Ulh l C lh W h 9 10 11 12 13 18 19 20 SEQUENTI AL OCCURRENCE REPORT REVISION

_ EVENT YEAR REPORT NO. CODE TYPE NO.

h "LER Ug RO EP l-l l 0 l 1l 3l l/l l0l3l lL l l-l l0l

_ l21 8l72 0] 23 24 25 27 N 29 30 31 32 TAK N AC N oN PLANT MET HOURS S6 IT FOR 8. SUPPLIE MANUF CTURER l33 Cl@l34 Zl@ lZ l@ l36Zl@ l Ol 0l Ol 0l l Nl@ lYl@ lNl@ l44G l 0 ] 8 l 047l@-

35 33 40 41 42 43 CAUSE DESCRIPTION AND CORRECTIVE ACTION 0 h lil0ll The event was caused by failure of the flow controller. The controller was manufacturled IiIii l by General Electric, Cat. #50-540017 HATE 2, Code #173130165. The corrective action I g,,7; l was to replace the controller and demonstrate satisf actorv ooeration of HPCI. I l

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I l i l 41 l 80 7 8 9 ST S  % POWER OTHER STATUS ISCO RY DISCOVERY DESCRIPTION NA Surveillance Test l li l5 l l E l@ l 1l 0l 0l@l l l B l@l ACTIVITY CO TENT RELEASED OF RELE ASE AMOUNT OF ACTIVITY LOCATION OF RELEASE NA l l1 16llZl 7 3 3

@ d @l10 11 NA 44 l l 45 80 PERSONNEL FxPoSURES NUM8ER TYPE DESCRIPTION I

li l 7110 I n 10 ' @l z l@l NA

' ' ' ,ERSONNe't iN;u' RIES '

NUMBER DESCRIPTION @

NA l lt I a8l 9l 0 l 0 l 0 l@l12 7 11 80 i LOSS OF OR DAMAGE TO FACILITY i , , y i plgi

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yx sconao g/pi 7 8 9 to 80 PUBLICITY I NRC USE ON .Y

.SSLED D E SC R' P TION 8, j 12 I o f L1j@l NA I IIIIIIIIIIIIII; 7 8 9 10 68 69 80 5 1 NAME OF PREPARER

. P. Nrphy PHONE: 802-257-7711 {'