05000255/LER-2077-006, License Event Reports 1977-006-00 & 1977-008-00 Control Rod Misaligned

License Event Reports 1977-006-00 & 1977-008-00 Control Rod Misaligned

ML18348A261
Person / Time
Site:	Palisades
Issue date:	02/02/1977
From:	Hoffman D Consumers Power Co
To:	James Keppler NRC/RGN-III
References
LER 1977-006-00, LER 1977-008-00
Download: ML18348A261 (4)

LER-2077-006, License Event Reports 1977-006-00 & 1977-008-00 Control Rod Misaligned

Event date:
Report date:
2552077006R00 - NRC Website

text

....

consumers Power company General Offices: 212 West Michigan Avenue, Jackson, Michigan 49201

• Area Code 517 788-0550 February 2, 1977

~..r James G Keppler Office of Inspection & Enforcement Region III US Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 DOCKET 50-255, LICENSE DPR PALISADES PLANT, ER-77-06, ER-77 CONTROL ROD MISALIGNED Attached are reportable occurrences which relate to the Palisades Plant.

These occurrences involve the misalignment of a control rod.

Per telecon with Mr Ken Baker (NRC, Region III), an extension beyond the 14-day submittal was granted.

David P Hoffman Assistant Nuclear Licensing Administrator FEB 7 1977

. 9ut:ENSEE EVENT REPORT

• Palisades CONTROL BLOCK:._! __.._..__..__...___.l~I [PLEASE PRINT ALL REQUIRED INFORMATION]

1 6

LICENSEE LICENSE NUMBER LICENSE TYPE NAME IM I I Ip I A I LI ii I o I ol -1 o I o I o I o I o 1-1 o Io I I 41 i I ii ii ii 7

8 9 14 15 25 26 30 fal1 I CONT r **I -*I 7

8 57 58 FIEPOFIT..F!EPORT

. TYPE** *SOURCE WllJ 59 60

EVENT DESCRIPTION

• '00CKl;T **NUMBER*

• • *** EV.EN:f***DATE I ol 51 ol-lo l215l5r lol1l 1l 1l 1l 1I 61 68 69 74 EVENT TYPE Io I 1 I 31 32

. REPORT CATE lo l2lol2l1l1I 75 80 lol2I I Following a feed-water pump trip, the operator a~tempted to avert a reactor trip by I.

7 8 9 80 lol3I I manually running in the control rods, but 4id not switch.mode selector from auto to I

7 89 80 lol41 I manual resulting iri rod No 38 being driven in 13.6 inches below the group before

.I 7

8 9 80 lol51

• 1 realizing the error.

The other* operator immediately tripped the plant.

I 7

8 9 80 lol6I ~'----------------------------------...,..----------------(ER __

- 7_7_-o_B_) ______ ~I 7

8 9 PRIME 80 SYSTEM

CAUSE

COOE COOE COMPONENT CODE 0@0 lRI *Bt -~

., c I 0 I Nl'RI *01p*DI 7

8 9 10 11 12 17 CAUSE DESCRIPTION Iola! I Personnel Error 7

8 9 10191 COMPONENT SUPPLIER

• t!J*

43 COMPONENT MANUFACTURER I c I* 4* l9

• 1 o I 44 47 VIOLATION L!J 48

1.

80

~~ 9'--~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~8~0

~9 80 FACILITY STATUS METHOO OF

% POWER OTHER STATUS DISCOVERY Ol!;1COVERY DESCRIPTION I 0 I 3 I 5 I.___,..,.._NA __

___.,.I w l...,...._ ___

N_A _______

~I 10 12 13 44 45 46 80 IIEI l..£1 9

7 8

FORM OF ACTIVITY CONTENT rn RELEASED OF RELEASE I AMOUNT OF ACTIVITY U]

W _____

NA ___

___.I 7

8 9

10 11 44 45 PERSONNEL EXPOSURES NUMBER TYPE

.DESCRIPTION II§] I o I o I 01 w NA 7

8 9 11 12 13 PERS.ONNEL INJURIES NUMBER

DESCRIPTION

1IE1 I o I o I ol NA 7

8 9 11 12 PROBABLE CONSEQUENCES lilll NA 7

8 9 LOSS OR OAMAGE TO FACILITY TYPE OESCRIPTION [fil w NA 7

8 9 10 PUBLICITY om 89 ADDITIONAL FACTORS NA DEi NA 7

8 9 DE NA 7

89 LOCATION OF RELEASE NA 80 80 80 80 80 80 80 80

'l...

• ~

9LlCENSEE -EVENT.REPORT.

Palisades CONTROL BLOCK: I 1 I I I J I I [PLEASE PAINT ALL REQUIRED INFORMATION]

LICENSEE NAME 6

LICENSE NUMBER IMIIIPIAILlll 1°1°1-1°1010101°1-10101 B 9

. 14 15 25 REPORT-REPORT

'"TYPE, *.. 'SOURCE

• ..... QQCKl;T 'NUMBER*

UC EN SE TYPE*

14 Ii 11 11 11 I 26 30 EVENT-

• DATE*

EVENT TYPE I 01 1J 31 32 REPORT DATE.

fOl1lcoN'T f *-*pq. W U!.J I 01 51 01-1 o 12 I 5 I 5 I I o I l I l I 71 7 I 71 1012101211111 7

B 57 5B 55!

60 61 6B 69 74 75 BO

EVENT DESCRIPTION

lol21_1 During critical 7

8 9 approach for trip recovery, a RO trainee inadvertently pulled rods I

BO.

lol31 I. while in manual individual rather than manual sequential 7

B 9 resulting in rod No 21 being I 80 lol41 I 9.1 inches.above the lowest rod in the bank.

7 B 9 lolsf J to bank level.

7 8 9 lof6l 7

8 9 SYSTEM

CAUSE

COOE CODE.

COMPONENT 'cooE

.@El t

Rl B-1 w. 'lC"f 0 INYRl'"OlD) 7 8 9 10 11

. 12.

17 CAUSE DESCRIPTION Iola! I Personnel Error 7

8 9 lalsl PRIME COMPONENT*

SUPPLIER "l2!J 43 He immedi~tely reinserted the rod back COMPONENT MANUFACTURER

• 1 c I 4 l9

• 1 o I 44 47 (ER-77-06)

VIOLATION w

48

.I 80 I

80 80 I

80

~:

[ill]

7 8

FACILITY STATUS

~

9 FORM OF

% POWER Io I al o I 10 12 13 ACTIVITY CONTENT OTHER STATUS NA RELEASED OF RELEASE AMOUNT OF ACTIVITY METHOD OF

.DISCOVERY w

44 45 46 DISCOVERY DESCRIPTION NA LOCATION OF RELEASE NA.

80

~ L!JI - __

N_A ___

____.,.I I

9 10 11 44 4.,..5------------------~80 rn 7

8 PERSONNEL EXPOSURES NUMBER TYPE

DESCRIPTION

IIEI I o1 o1 °'

L~J NA 7

8 9 11 12 13 80 PERS'ONNEL INJURIES NUMBER

DESCRIPTION

EEi I 01 01 01 NA 7

8 9 11 12 80

"(ill]

PROBABLE CONSEQUENCES NA 7

8 9 80 LOSS OR DAMAGE TO FACILITY TYPE

DESCRIPTION

EID~

NA 7

8 9 10 80 PUBLICITY [ill]

NA 8

DDmONAL FACT~~s 80 E1fil NA 7

8 9 80 [Tifil NA 7

89 80

_ j

consumers Power company General Offices: 212 West Michigan Avenue, Jackson, Michigan 49201

• Area Code 517 788-0550 February 8, 1977 Mr James G Keppler Office of Inspection & Enforcement Region III US Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 DOCKET 50-255 - LICENSE DPR PALISADES PLANT - WITHDRAWAL OF ER_.:77 CONTROL ROD MISALIGNED By letter dated February 2, 1977, Event Report 77-06 for the Palisades was transmitted to the Office of Inspection & Enforcement, Region III.

reviewing the event, the plant staff determined that this event was not portable and obtained the concurrence of the IE staff.

Plant After re-The reactor was subcritical at the time of the control rod No 21 misalignment and the event is, therefore, not reportable per the re~uirements of Technical Specifications, Section 3.10.4.a.

LER-77-06 is, therefore, withdrawn.

David P Hoffman Assistant Nuclear Licensing Administrator FEB 10 1977