ML20069L317

Corrected RO 3-83-11/1P:on 830407,full-in Position Signal Jumpered Into Probe Buffer Cards.Control Rods Could Have Been Withdrawn W/O Initiating Single Control Rod Interlock. Caused by Personnel Error.Jumpers Removed

ML20069L317
Person / Time
Site:	Peach Bottom
Issue date:	04/11/1983
From:	Fleischmann R PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	Allan J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
RO-3-83-11-1P, NUDOCS 8304280160
Download: ML20069L317 (2)

Text

-

PHILADELPHIA ELECTRIC COMPANY

,,,,,, , , g Gl?ATED ORIGIIIAL u.a.s.non seagtig1c5 yy asW Ta,PageseSTR.V aseta sFSs4 fffdf " 'bh% (

l April 11, 1963 i

R2-138030 rom rammarTroots ur. Jauce E 111pa acting admintnermear magion I neri og T- ;- :M aa and Enforcement U. s. metaae negolatory h==4am 031 Berk Jwassee

. sting of Prussia FA 19406 Sum 73ct: REWORTABLE ON - Paceert uprzrzcmT20st meerTzoer)

CDefirERLag A. J. Ileeeeg's CoRWereatioB trith $$r blough, Wien I, gaited States maclear Angulatory r"a==i==4an es 4/g/83.

c.

Reference:

Doelaat Isa. 50-278 Peach Butten Unit 3 Taehmir-m1 Specification 3.1C.A.1 l neport me.e 3-03-11/17 l N Dates 4/7/m3 Identification of Occurrences see to a lose of control rod position insiention from control rods 22-47, 58-31, and 54-15, a full-in position signal wee jumpered ista the poche bestfor carte for these control rode on 3/11, 3/26, and 4/2 respectively.

all three roes were verified to be fully inserted ideen the juegners mers l applied. Becauses no =====ree were taken to promeset withdressel of these rode, the impante to the refuel interlocke for these rods were emeestially aefeated by the application of the summere. stee, these rode comu have meau witherman withmes;t initiating the single sentrol red interleek.

<==mies - prior to oocurrences theit 3 shotdoissa for retteeling c'estage.

;;- c 2 comes of occurrences Personeel error.

_melysis A of Ocesarresme Defeettag porticos of the refuel interlooke had minimal oefety sta=4 *i_-- 7-:

h all red motion durimy the period the jumpers tsere installed was -

coseistant with refuel intericek cosastraints. ta addition, ao fasi esas transferred cc t:ne reactor deristg this period. Noosewet . coere alter =*4mm, -

tsare made at various times darf sg the period. Og v

8304280160 830411 I PDR ADUCK 05000278 /

S PDR r - _ - - _ _ - -

Josepere on the probe buffer cards for control rod 22-47 and 58-31 unre removed on 4/6 in preparation for other tork. .hsepara camaei m with emetrol mod 54-15 rammin inse=11=e ha=== the position indiention penha is defective. neuever, positive administrative contal has been applied to prevent. control rod tritha,-=1 until proper rod position ima4emetaa is restored and the jumper is removed.

appropriate disciplinary action trill be taken regarding permanmel 2- . tity for the administrative anaerol of these jumpers. Furtbar mee of the jumper em has been enspended pending additional zwiser.

Previane Oscarrences Mome.

M *EMIY FORESe N S. Fl=4 h station Superisten6ent I

i

. _ _ _ _ _ _ _ - _ - _ _ _ _ _ _ _ _ _ _ -