ML17326A402

LER 79-062/03L-0:on 791111,inoperable Steam Flow Channel 1 Taken Out of Trip Condition During Investigation of Channel Spec Reading.Caused by Incorrect Panel Indicator Labeling. Channel Placed in Trip Mode & Labeling Corrected

ML17326A402
Person / Time
Site:	Cook
Issue date:	12/11/1979
From:	Delong S INDIANA MICHIGAN POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17326A400	List: ML17326A399 ML17326A401 ML17326A402
References
LER-79-062-03L, LER-79-62-3L, NUDOCS 7912170257
Download: ML17326A402 (3)

Text

NRC FORM 366 U. S. NUCLEAR REGULATORY COMMISSION (7 77,)

ICENSEE EVENT REPORT

~1 ~

CONTROL BLOCK: Q1 tPLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

I 6 N I 0 C C 1Q70 14 0 0 0 0 0 0 LICENSE NUMBER 0 0 0 0 25 QE4 26 1 1 1 LICENSE TYPE 1

30 QE~QE 57 CAT 58 7 8 9 LICENSEE CODE CON'T SOURCE

~L~60 5 0 0 0 3 1 5Q71 1 1 1 7 9Qs i 2 1 1 7 9 Q9 7 8 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES ~10 AN INOPERABLE STEAM FLOW CHANNEL (ClTANNEL I) WAS TAKEN OUT OF THE TRIP CONDITION FOR A PERIOD OF 25'MINUTES.

THIS ACTION WAS NON CONSERVATIVE WITH RESPECT TO T.S. TABLE 3.3-1 ITEM 15 AND TABLE 3.3-3 ITEMS lf AND 4d.

~OB

~O7

~OS 80 7 8 9 SYSTEM CAUSE CAUSE COMP. VALVE

~~Q, ~-;-~-'~

[OOQ 7 8 9 10 11 Q 12 13 18 Q Ao hQ 19 20 Q17 LERIRP REPORT ACTION FUTURE TAKEN ACTION EVENT YEAR

~79 21 22 EFFECT ON PLANT

+

23 SHUTDOWN METHOD

~06 24 SEQUENTIAL REPORT NO.

2 26 HOURS &22 U~

27 M

OCCURRENCE 28 ATTACHMENT SUBMITTED CODE 29 NPRDQ FORM SUB.

REPORT TYPE UL 30 PRIME COMP.

SUPPLIER U U 31 REVISION NO.

32 COMPONENT MANUFACTURER

~ZQET 0 0 0 0 ~<QEE ~NQ74 ~<QEE 0 0 0 0

~<QTR ~FQER ~ZQER QEE 33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS &27 o

DURING THE INVESTIGATION OF OUT OF SPECIFICATION READING ON MFC140 (CHANNEL I STEAM FLOW) THE BISTABLES FOR THAT CHANNEL WERE PLACED IN THE TRIP MODE. DUE TO INCORRECT LABELING OF THE PANEL INDICATORS IT WAS THOUGHT'THAT'THE WRONG CHANNEL HAD BEEN PLACED IN THE TRIP MODE, SUBSEQUENTLY CHANNEL I WAS PLACED BACK TO NORMAL AND CHANNEL II WAS PLACED INTO TRIP. SEE ATTACHED SUPPLEMENT.

~Q 8 9 80 FACILITY STATUS 1IP POWER OTHER STATUS Q CO 7

I 5 8 9 C Q26 10 0 4 6 12 29 13 NA 44

~AQ31 45 46 TROUBLE SHOOTING 80 6

ACTIVITY CONTENT RELEASED OF RELEASE

~Z Q33 ~ZQ34 AMOUNT OF ACTIVITY NA

~ NA LOCATION OF RELEASE Q 7 8 9 10 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION A3

~17 7 8

~00 9

0 11 QET LZJQER 12 13 NA 80 PERSONNEl. INJURIES 7 8 9 11 12 80 LOSS OF OR DAMAGE TO FACILITY Q43 TYPE DESCRIPTION NA 7P/2./747ZJ 47 9 Z Q4.

7 8 9 10 80 O

ISSUED

~NQ44 PUBLICITY DESCRIPTION ~ NA NRC USE ONLY EE o

7 8 9 10 68 69 80 o S. D. Deiong 616-465-5901 0 NAME OF PREPARER 0

~ ~

'W

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~

~

'UPPLEMENT TO LER ¹ 9-Q62 Q L-Q SUPPLEMENT TO CAUSE DESCRIPTION FURTHER INVESTIGATION REVEALED THAT CHANNEL I WAS INFACT THE INOPERABLE CHANNEL AND IT WAS PLACED BACK IN TRIP WITH CHANNEL II RETURNED TO NORMAL.

THE NAME PLATES FOR PANEL INDICATORS WERE CORRECTED AND THE NAME PLATES FOR THE OTHER STEAM FLOW CHANNELS, IN BOTH UNITS WERE VERIFIED.

A DESIGN CHANGE HAS BEEN INITIATED WHICH WILL IMPROVE THE CONSISTENCY OF AEP LABELING FOR THE STEAM FLOW CHANNELS AND ELIMINATE ANY CONFUSION IN LABELING.

THE ACTION REQUIREMENTS OF T.S. TABLES 3. 3-1 AND

3. 3-3 WERE FULFILLED.