05000315/LER-1979-005-03, /03L-0 on 780624:unit Was Operated W/Positive Moderator Temp Coefficient for 3-h.Caused by Rod Withdrawal & Consequent Xe Build Up.Procedure Being Revised

/03L-0 on 780624:unit Was Operated W/Positive Moderator Temp Coefficient for 3-h.Caused by Rod Withdrawal & Consequent Xe Build Up.Procedure Being Revised

ML17317A984
Person / Time
Site:	Cook
Issue date:	03/07/1979
From:	Beilman T INDIANA MICHIGAN POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17317A983	List: 05000315/LER-1979-005-03, /03L-0 on 780624:unit Was Operated W/Positive Moderator Temp Coefficient for 3-h.Caused by Rod Withdrawal & Consequent Xe Build Up.Procedure Being Revised 05000315/LER-1979-006-03, /03L-0 on 790208:pressurizer Relief Tank Diaphragm Ruptured,Causing Ice Condenser Inlet Doors to Be Indicated Open.Caused by Pressure Surge in Lower Containment.Unit Shut Down & Doors Closed ML17317A982
References
LER-79-005-03L-01, LER-79-5-3L-1, NUDOCS 7903130364
Download: ML17317A984 (2)

LER-1979-005, /03L-0 on 780624:unit Was Operated W/Positive Moderator Temp Coefficient for 3-h.Caused by Rod Withdrawal & Consequent Xe Build Up.Procedure Being Revised

Event date:
Report date:
3151979005R03 - NRC Website

text

NRC FORM 366 U. S. NUCLEAR REGULATORY COMMISSION LICENSE E EVEN T R E PORT CONTROL BLOCK:

Q1 (PLEASE PRINT OR TYPE ALLREQUIRED INFORMATION) 2 4

I 6

I'1 I

D C

C 1

Q2 0

0 0

0 0

0 0

0 D

0 0

Qs 4

1 1

1 1 Q4~ Qs 7

8 9

LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE 30 57 CAT 58 CON'T

~01

"'" ~LQe 0

5 0

0 0

3 1

5 Q70 6

2 4

7 B QBO 3

Qg DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABI.E CONSEQUENCES Q10 DURING A

POWER ESCALATION FOLLOWING THE CYCLE THREE ZERO POWER PHY

~O3 TESTS THE UN I T WAS OP ERATEDW I TH APOS I T I VE MODE RATORTEMPERATU RE 4

COEFFICIENT (MTC)

FOR APPROXIMATELY THREE HOURS.

THIS IS INCONSISTENT 5

WITH THE REQUIREMENTS DF T.S. 3.1.1.4.

~oe

~O7

~OB 80 7

8 9

7 8

SYSTEM

CAUSE

CAUSE COMP.

VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE

~RB QII D

Q12

~Z Q13 Z

Z Z

Z Z

Z Q14

~Z Q15

~Z Q15 9

10 11 12 13 18 19, 20 SEQUENTIAL OCCURRENCE REPORT REVISION LERIRO EVENT YEAR REPORT NO.

CODE TYPE NO.

Q 559092

~79

~

~0()

S g~

~03

~L g

+0 21 22 23 24 26 27 28 29 30 31 32 ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT NPRDP PRIME COMP.

COMPONENT TAKEN ACTION ON PLANT METHOD HOURS +22 SUBMITTED FORM SUB.

SUPPLIER MANUFACTURER Qls~ Q19

~Q20

~Q21

~~

Q23

~~Q24

~N Qss W

1 2

0 Q25 33 34 35 36 37 40 41 42

'3 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27 THE APPL I CABLE PROCEDURE FAI LED TO I DENT I FY THAT DURING ROD WITHDRAWL AND CONSE(VENT XENON BUILD-UP THE BENEFIT OF THE REDUCED MTC FROM ROD INSERTION WOULD BE LOST.

THE PROCEDURE, USED EXCLUSIVELY AT THE BE-ABLE FOLLOWING THE NEXT REFUELING.

7 8

9 7

8 O

7 8

9 11 12 LOSS OF OR DAMAGETO FACILITY~43 TAUPE

DESCRIPTION

LJQ42 9

10 PUB LI CITY ISSUED DESCRIPTION~

9 10 NAMEOF PREPARER T.

P.

Bellman 7

8 9

FACILITY ST US

% POWER OTHER STATUS 5

~

Q25 ~00

.2 Qss NA 7

8 9

10 12 13 44 ACTIVITY CONTENT RE/ABED OF RFfEASE AMCMIQFACTIVITYQs EKI Q LJQ34 7

8 9

10 44 PERSONNEL EXPOSURES Q

~0'"II'"b Q'Q'"'"'"II" 7

8 9

11 12 13 PERSONNEI INJURIES QAC NA METHOD OF DISCOVERY DISCOVERY DESCRIPTION Q32

~AQ31 INTERNAL REVIEW 45 46 LOCATIONOF RELEASE Q NA 45 a9 12>i ZE7 34 NRC USE ONLY 68 69 P HoN E 6 1 6 4 65 5 90 1 I 80 80 80 80 80 80 43 44 45 80 0

0.0

C I