ML20084U291

LER ER-77-006:on 770117,control Rod 21 Found 9.1 Inches Above Lowest Rod in Bank.Caused by Trainee Pulling Rods While in Manual Individual Rather than Sequential,During Critical Approach for Trip Recovery

ML20084U291
Person / Time
Site:	Palisades
Issue date:	02/02/1977
From:	Hoffman D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20084U289	List: ML20084U286 ML20084U291
References
LER-ER-77-006, LER-ER-77-6, NUDOCS 8306280577
Download: ML20084U291 (2)

Text

~

[, Q UCENSEE EVENT REP g p,11,,,;,

CONTROL 8toCx:1 l l l l I l cumans numer an nenuman moonesanon) 1 8

. UCENSE NUMSER I

] lM l*I l P l Al Ll 1l l0l0l-l0l0l0l0l0l-l0l0l l4 l1 l1 l1 l1 l l 0l lj 7 89 14 15 25 28 30 31 32 YE kwe coCmq7 NuMeam event OATS mepont oAfg 0 CONT l*l*l 7 8 57 58 W 59 W80 l 0l 5l 0l-l0 l2 l 515 l l 0l 1l 1l 7l 7l 7l 81 88 89 74 l 0 l 2 l 0 l 2 l 717 l 75 80 EVENT DESCRIPTION 25 l During critical approach for trip recovery, a RO trainee inadvertently pulled rods l 7 89 80 g l vhile in manual individual rather than nanual sequential resulting in rod No 21 being l 7 89 80 E[ l 9.1 inches above the lowest rod in the bank. He immediately reinserted the rod back l 7 89 80 3E Ito bank level. (ER-77-06) l 7 89 80 ilG I I 7 89 m 80 NCE COMPONENT CCCE VOLATON gg l Rl Bl W 7 89 10 11 l C l 0 l N l Rl 0l Dl 12 17 J43 44 lC lh l9 l0 l 47 W48 CAUSE DESCRIPTION DE l Personnel Error l 7 89 80 HE I I

!I

• l s Er s powEn omem status "osCov8 osCovEnv oEsCMTCN 1

9 y l0l0l0l l 12 13 NA l 44 W 45 l

48 NA 80 l

7 8 10 K l Y" l l N l

7. 8 9 10 11 44 45 80 PERSONNEL EXPOSURES  !

NuMean Type OEstpenON DE l 0101 4 LzJ l n^ I 7 89 11 12 13 80 PERSONNEL INJURfES NUMOEn DESCMTCN 1010l d i l NA l 7 89 11 12 ,

80 PROBABLE CONSEQUENCES ,

NA 3E I l 7 89 80 LOSS OR DAMAGE TO FACILITY Type DESCMTON Q]

7 89 l

10 NA 80 l

l PUBUCITY 8%6 77702g805000gp l

1 l NA g l 7 89 80 ADDITIONAL FACTCRS MI 7 89 NA 80 l

i l NA l 7 89 80

_ _ _ _ _ _ . _ _ _ _ _ _ _ - _ _ _ y