05000281/LER-1980-042-03, /03L-0:on 801115,found Emergency Diesel Generator 3 Failed to Start Manually from Control Room.Caused by Vanes on Air Motor Worn Beyond Acceptance Limits.Vanes Repaired

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/03L-0:on 801115,found Emergency Diesel Generator 3 Failed to Start Manually from Control Room.Caused by Vanes on Air Motor Worn Beyond Acceptance Limits.Vanes Repaired
ML18139A905
Person / Time
Site: Surry Dominion icon.png
Issue date: 12/11/1980
From: Joshua Wilson
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML18139A903 List:
References
LER-80-042-03L-04, LER-80-42-3L-4, NUDOCS 8012170646
Download: ML18139A905 (3)
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LER-1980-042, /03L-0:on 801115,found Emergency Diesel Generator 3 Failed to Start Manually from Control Room.Caused by Vanes on Air Motor Worn Beyond Acceptance Limits.Vanes Repaired
Event date:
Report date:
2811980042R03 - NRC Website
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text

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ill I On November 11,1980, No. 3 EOG failerl to.start manually from the control room. Pre-ill ill ill ill ill ferrerl Start 2 was selecterl and the EOG starterl m:rmally. The #2 EOG was available throughout this event. The #3 EOG muld have starterl in resp:mse to an auto start r: signal using the backup start circuit. Therefore the health and safety of the p.lblic were not affecterl. 8 9 80 01 s** - SYSTEM CODE IE I El@ 9 10 LER'RO LVENTYEAR REPORT I I I f,L.'".'.SER 8 Q 21 ACTIO'.. FUTUF.E T ;...KE~- ACTIC..... EFFEC"i 0\\/ PLA!\\i

CAUSE

CAUSE CODE SUBCODE COMPONENT CODE w@ ~@ IM!OITIOIRIXI@ 11 12 13 SEQUENTIAL REPORT NO. I o I 41 21 24 26 ,......-1 27 18 OCCURRENCE CODE Io l 3 I 28 29 COMP. VALVE SUBCODE SUBCODE ~ w@ 19 20 REPORT TYPE L!J L=I 30 31 PRIME C:OMP. SUPPLIER SHUTDO\\".'t, ~ ATTACHMENT NPRD-4 REVISION NO. ~ 32 COMPONENT MANUFACTURER ul@ I El 11 6 lo!@ r.\\::THOi:> HOURS ~ SUBMITTED FORM ~UB. lm@u.J@ W@ ~

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LNJ 33. 3.; 3:, 36 Ji 40 41 42 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS@ 43 44 47* ill I The vanes on the air notor were mm beyond acceptable limits and thereby preventing DJ I the rrotor frcm rotating. The vanes -were repairerl and teste::l. to prove operability. m..___ _____________ -=----------------------~-- m CD 8 9 FACILITV STATUS 'a POl"/ER OTHER ST;.. TUS 0 }] ~ 11 I O I O I@.._! _N/_A ___ 8 9 ACTIVITY 10 12 13 CONTEl\\:T Q\\ RELEASED OF RELEASE AMOUNT OF ACTIVITY~ I] JU@ ~@I N/A B 9. 10 11 44 80 METHOD OF A DISCOVERY DISCOVERY DESCRIPTION \\.:3.1 ~@.... I __ Oper~_a_to_r_' s_O_ib_s_erva t_i_o_n ______ __,!. 45 46 80 N/A LOCATION OF RELEASE @ I 45 80 PERSONNEL EXPOSURES Q.... 2] I oNp)Bro J@1YzE1@... D_Es_c_RI-PT_N_/._A_~_9 ____________________________ B 9 11 12 13 80 PERSONr,ZEL It/JURIES r;;:;,., Nur.,sER DESCRIPTION6 / ii] j O j O IO l@).__ ___ N_A _______ B '9 11 12 LOSS OF OR [);..'.'.,.GE TO FACILITY~ TYPE DESCRIPTIOII: '\\:.:;) I] W@) N/A I, 9 10 PL'BL ICITY (:";\\ 8 ([l) J1 2 ]. ~ rJJ; ISS:.JED DES"cR;~TIOI, ~ (.5 ~ LlLJ@I N/A E S lL N,:.,r.~E OF PREPARER _J_._L_._W_il_' _so_n __________ _ 80 80 NRC USE ONLY I I I I I I I I I I 1 I I ! 68 69 PHONE:(804) 357-3184 80 ;; 0 C. ,-{:...*.:....:...~... ~ *.,... ~(.,,fr'.;.-*';,'*"~-:.".::.... --. :~....... ~;...,*.~-~.;;....,, "::.:'.,;,"'*.~-

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ATmCHMENI' l SURRY FOWER Sl'ATION, UNIT 2 rx:cKEI' NO: 50-281 REPORI' NO: 80-042/03L-O EVENT DATE: 11-15-80 e EMERGE:tCY DIESEL "GENERATOR No. 3'. MALFUNCTION

1.

DEOCRIPI'ION of EVENI': On November 15,1980, with the unit at 100% p:JWer, No. 3 Energercy Diesel Diesel Generator (EOG) failed to resµ:>nd to a manual.,start signal initiated from the control room. The manual start cii:;cuit was in the "Prefen:ed Start #1" node. The ~err~ Start #2" circuit was selected am the EOG i successfully started. This is contra:cy to Tech.'1ical Specification 3.16.A.l and is rep:>rtable per Technical Specification 6.6.2.b(2).

2.

PIDBALBE CONSE(PENCES and sr.ATUS of REDUNDA."Nfi' E(JJil'MENI': The Emergency Diesel Generators provideis.:power to vital equipnent in t.11e event of loss of mnnal :i;:ower (loss of off site p::,wer).

  • The No. 2 EDG 1

was operable and IDUld have supplied p::,wer to the redundant safeguards canp::ments. The EOG autarratic start circuit:cy will utilize either of ~ tw:> starting circuits. S~e the backup start circuit was functional and No. 3 EDG "10uld have started, the heal th *and safety of the p.lblic were mt affected.

3.

CAUSE

The starting air motor vanes were foun::l to be \\\\Om beyond acceptable l:irnits, thereby preventing the notor from rotating.

4.
r>>IDJIATE CORRECI'IVE ACI'ION:

Started No. 3 EDG in the prefered start #2 node.

5.

SUBSECPENI'. CORRECTIVE ACTICN: The air notor was repa.ired arx1 it I s operability pi::oven. ~';"t*;:ismt:~~~4.-,v>~.;~~*':l~--t'f\\.... i4'.;~~~.~:r;f;!/l!l'r:,.~t'j,,.,.... c;Li,.'j,#,.... ~ **....:~*.~ ** *~*:'I""/. ****0;..,, __.*..,.. :**.. ?':'7*.':>,',,.* *. *.*.. *..,' -. ~ ***~.-*c,.:;:::.:......,:;r-*:..:i.s?'!ifi~*-~*->.:.*,**.**,_"1-J*,.-~.:-.-~-~.. - --.-.,,_.::-:ii*-~~. -:_*' __ *:.;i-.-*.~--. 1',."

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6.

ACI'ICN' TAKEN TO PREVENT RECCURANCE: None Require::l.

7.

GENERIC IMPLICATICNS: None -~5:,:,u;:::-:=.r::-:-,. .r:1'~.~ --**:r:-,. ;* 7;..,.:;;~:.;*,.: ~v: ti *.. n

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