05000029/LER-1985-009, Forwards LER 85-009-00

Forwards LER 85-009-00

ML20137Q110
Person / Time
Site:	Yankee Rowe
Issue date:	01/08/1986
From:	St Laurent N YANKEE ATOMIC ELECTRIC CO.
To:	Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
NUDOCS 8602050533
Download: ML20137Q110 (1)

LER-2085-009, Forwards LER 85-009-00

Event date:
Report date:
0292085009R00 - NRC Website

text

r YANKEE ATOMIC ELECTRIC COMPANY Rowe, Massachusetts 01367 YAmuse

~ ,

January 8, 1986 U.S. Nuclear Regulatory Commission Region I 631 Park Avenue King of Prussia, Pennsylvania 19406 Attention: Dr. Thomas E. Murley, Regional Administrator

Subject:

\ Licensee Event Report 50-29/85-09, Revision 0 Reactor Scram i

Reference:

License No. DPR-3 (Docket 50-29)

Dear Sir:

In accordance with 10 CFR 50.73(a)(2)(iv), the attached Licensee Event Report, is hereby submitted.

Verytruly.ours)

)$t1Cr - ' Y to Normand N. St. Laurent Plant Superintendent l

DAR/nm Enclosure i cc: [3] NSARC Chairman (YAEC)

[1] Institute of Nuclear Power Operations (INP0) 9602050533 960109 PDR ADOCK 05000029 1 S PDR ')9 I \ \v r

f U S NUCLEAR EEGULATOUY COMM855 TON eenc p 3e8 0 33 LPMOvtD oms NO 3:50-410e e LICENSEE EVENT REPORT (LER)

G E ' 38 DOCA ET NUMBER 12)

FACILITY NAME (13 YANKEE ATOMIC ELECTRIC COMPANY, ROWE, MA 0(510l0l0101219 1 loFh 11_

TsTLEtal REACTOR SCRAM EVENT DATE ISI LER NUMSEm (61 REPORT DATE (7p OTHER F ACILITIES INVOLVED all SEQ * *

• DAV VEAR ' ACiteTv N Awes DOCnET NvMeEn.5r UONT4 DAY YEAR YEAR i,'

s YONTM 015101010 ! I i 1l 2 O! 9 8' 5 8l 5 0l0lS 0 l0 0l1 0l8 8l 6 0l5 ! 0 lcl0 i i l Twis mEPOa7 is susMiTTED PunsuANT to T*E nEOuinEMENTs Os 10 Csa 1 (c ece e e e, +.re e, t*, *e r o..,, iisi MODE m 60 73.e42H..I 73 71166 2 20.40216) 20 40stel )(

20 405teH1H4 SO 346eHti 50 73 eH2Hei 73 filet m

t101 010l 0 20 40eisims.i 50 mi.H2, so n.H2H.. _ O,7w;gs,-g,;.,Agyt 50 73;sH2H4 60 73 ell 2il.mla At J66Al 20 406tsH1Hael 20 405(aH1Hiel 60.7 3teH2 Het 50 734eit2H.mitel 20 4051eH1H.1 50 73tsH2Hml 50 73 sit 2Hu LICENSEE CONT ACT FOR Twi$ LER t121 TELEe=ONE NuUSER NAvg Asit A CCCE D. A. Rice, Plant Engineer 4 il l3 4l2l5l-l5l2i6l1 COMPLETE ONE LINE FOm E ACM COMPONENT F AILumE CE5C A 8ED IN THt$ REPOmf 1131 _

U AC E V C AEPORTA8 E SYSTEY COvPONENT G E EOR T_A8 A SE SYSTEU COvFONENT CAUSE ,

A J tE l l l l l 1 l  ! l ! t l l 1 I I I I I f I I l I l l I v0NT= DAv YEAR SUPPLEMENT AL REPORT E XPECTED staa Sv 8M r 55+0%

W E S (19 peu. como'ere EXPECTED SusuisSION CA TEl %Q } l l AssTR ACT ILomst to 1400 soeces o e . coprowerey 9Ateen so g e spece t.pewrotron s,ney (1t>

With the plant in Mode 2, following a refueling outage, and in preparation to 90 to Made 1, an inadvertent reactor scram occurred. It was caused by personnel error. A contractor who was vacuum cleaning inside the Main Control Board accidentally bumped the reactor protection system auxiliary circuit train "A" relay (K53A) with a vacuum cleaner attachment. The bump actuated the auxiliary relay and caused a direct reactor scram (BK-1 and 2 trip). The event occurred 12/9/85 at 1125 hours0.013 days <br />0.313 hours <br />0.00186 weeks <br />4.280625e-4 months <br />. A four hour notification, pursuant to 10 CFR 50.72 b.2.11, was made at 1216 hours0.0141 days <br />0.338 hours <br />0.00201 weeks <br />4.62688e-4 months <br /> on 12/9/85.

Prior to beginning work, the contractor was instructed to work carefully. There has been no similar event of this nature. After the event, the individual was reinstructed in care of work practices. This is considered an isolated event. ilo further corrective action is deemed necessary.

There was no adverse effect on the health and safety of the public as a result of this event.

N6 /,N

. WGO O %L .

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