05000315/LER-1978-066-03, /03L-0 on 781229:during Routine Startup,Rod Position Indication for Rods F-4,D-6 & K-6 Exceeded 12 Step Limit of Tech Specs.Caused by Drift of Signal Conditioning Modules

From kanterella
(Redirected from ML17317A888)
Jump to navigation Jump to search
/03L-0 on 781229:during Routine Startup,Rod Position Indication for Rods F-4,D-6 & K-6 Exceeded 12 Step Limit of Tech Specs.Caused by Drift of Signal Conditioning Modules
ML17317A888
Person / Time
Site: Cook 
Issue date: 01/16/1979
From: Beilman T
INDIANA MICHIGAN POWER CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17317A880 List:
References
LER-78-066-03L, LER-78-66-3L, NUDOCS 7901220137
Download: ML17317A888 (2)
v • d • e


LER-1978-066, /03L-0 on 781229:during Routine Startup,Rod Position Indication for Rods F-4,D-6 & K-6 Exceeded 12 Step Limit of Tech Specs.Caused by Drift of Signal Conditioning Modules
Event date:
Report date:
3151978066R03 - NRC Website
v • d • e

text

NRC FORM 366 I7177)

[OOi]

7 8

s CONTROL BI.OCK:

E I

M I

D C

C 1

Q2 0

0 9

LICENSEE CODE 14 15 U. S. NUCLEAR REGULATORY COMMISSION LlCENSEE EVENT REPORT Q1 (PLEASE PRINT OR TYPE ALLREQUIRED INFORMATION) 0 0

0 0

0 Qs 4

I I

I I PE~I 25 26 LICENSE TYPE 30 57 CAT 58 LICENSE NUMBER CON'T

~0 7

8 [LIO 5

0 0

0 3

1 5

Q7 2

2

.9 7

8 Qs 0

1 I

6 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Q10 DURING A ROUTINE START-UP ROD POSITION INDICATION FOR RODS F-4 D-6 AND K-6 80 QB EXCEEDED THE TWELVE STEP LIMIT IMPOSED BY T.S. 3.1.3.2.

THE ACTION STATEMENT REQUIREMENTS WERE OBSERVED WITH INDICATION RETURNED TO NORMAL WITHIN THE

~os

~OB

~07 SPECIFIED TIMIE,LIMIT.

SIMILAR OCCURRENCES INCLUDE: 050-0315/76-13,44 54'315 77-27 28 33 34 0315/78-04,07,38,46,64:

050-0316/78-07,08,22,31,41,64,75 84 AND 93 ~

~os 80 7

8 7

8 9

~

SYSTEM

CAUSE

CAUSE 1

COMP.

VALVE CODE CODE SUBCODE

'OMPONENTCODE SUBCODE SUBCODE

~10 Q11 E

Q12

~GQ13 I

N S

T R

0 QE

~XQTE

~ZQEE 9

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

CODE TYPE NO.

Q17 REP0RT MTB U

LoO66J 21 22 23 24 26 27 28 29 30 31 32 ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT NPRD-4 PRIME COMP.

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

SUPPLIER MANUFACTURER

~c.

QER~~QTR

~gpss

~zpgT o

o 0~

N Q"

~~ps

~NQEE I '

Q" 33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27

~10 IN ALL CASES IT WAS DISCOVERED THAT THE SIGNAL CONDITIONING MODULES HAD DRIFTED

~

I 3

EACH MODULE WAS ADJUSTED FOR THE CORRECT INDICATION FOLLOWING VERIFICATION OF THE SECONDARY COIL VOLTAGES.

AN ENGINEERING REVIEW IS IN PROGRESS TO DETERMINE THE CAUSE OF THIS RECURRING PROBLEM.

4 7

8 9

FACILITY STATUS

% POWER OTHER STATUS Q 0

0 NA 7

8 9

7 8

O 7

8 9 '1 12 LOSS OF OR DAMAGE.TOFACILITYQ43 z Q NA 9

10 PUBLICITY ISSUED DESCRIPTION ~~

9 10 NAME OP PREPARER T.

P.

Beilman s

0 ps ~pgg 7

8 9

10 12 13 44 ACTIVITY CONTENT REL~SED OF RELEASE AMOUNTOF ACTIVITY Q3 Z

Q34 NA 7

8 9

10 44 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION QSB 7 ~00 0

QO~ZQss NA 7

8'9 11 12 13 PERSONNEL INJURIES

~O'"5""O O'"'"'""'

NA 80 80 80 7 T Yz2D /yp 80 80 80 NRC USE ONLY ESO 2

80 0

68 69, PHQNE'16-465-METHOD OF DISCOVERY DISCOVERY DESCRIPTION Q32

~A QRE OPERATOR",OBSERVATION 45 46 LOCATIONOF RELEASE Q NA 45

t 4

Retrieved from "https://kanterella.com/w/index.php?title=05000315/LER-1978-066-03,_/03L-0_on_781229:during_Routine_Startup,Rod_Position_Indication_for_Rods_F-4,D-6_%26_K-6_Exceeded_12_Step_Limit_of_Tech_Specs.Caused_by_Drift_of_Signal_Conditioning_Modules&oldid=5077119"