ML17326A401

LER 79-061/03L-0:on 791111,during Startup,Steam Generator 4 Steam Flow Channel 1 Indicated 21% Lower than Redundant Channel.Caused by Oil Leak from Bellows to Transmitter Body Causing Drift Out of Spec.Transmitter Replaced

ML17326A401
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-79-061-03L, LER-79-61-3L, NUDOCS 7912170252
Download: ML17326A401 (1)

Text

U. S. NUCLEAR REGULATORY COMMISSION IY NRC FORM 366

{7.77J tCENSEE EVENT REPORT 41

~

4 CONTROL BLOCK: Q1 (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

I 6

~Q1 MI D C 0 1Qo 14 15 0 0 0 0 0 0 LICENSE NUMBER 0 0 0 0 0Q44 25 26 1

LICENSE 1 1 TYPE30 1Q4~Qo 57 CAT 58 7 8 9 LICENSEE'CODE 4 CON'T 0 5 0 0 0 3 1 5 1 1 1 1 7 9 1 2 1 1 7 9 Q9

~LQB Q7 74 QB 75 REPORT DATE DOCKET NUMBER 68 69 EVENT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Q10

~02 DURING THE START UP OF UNIT 1 NUMBER 4 STEAM GENERATOR STEAM FLOW CHANNEL I WAS FOUND TO BE INDICATING APPROXIMATELY 21 PER CENT LOWER THAN THE REDUNDANT

~o4 CHANNEL. THIS CONDITION WAS NON CONSERVATIVE WITH RESPECT TO T.S. TABLE

~oo 3.3-1 ITEII 15 AND TABLE 3.3-3 ITEMS If AND 4d.

~OB

~O7

~OB 80 7 8 9 COMP SYSTEM CAUSE CAUSE VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE

~O9 8

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9 IIAIO4 10 11

~O>>

12 13 I N S T R U 18 Q44 ~TQ44 19

~Z 20 Qlo 7

SEQUENTIAL OCCURRENCE REPORT REVISION Q

LF RIRP

<<>>44 ACTION FUTURE EVENT YEAR

~TB 21 22 EFFECT

~

23 SHUTDOWN

~O 24 REPORT NO.

26 27 ATTACHMENT 28 CODE 29 NPRDQ TYPE 30 PRIME COMP.

31 32 O.

COMPONENT TAKEN ACTION ON PLANT ME QUOD JOUR/ +22 SUBMITTED FORM SUB. SUPPLIER MANUFACTURER Q18 ~Q14 ~Q20 ~Q44 ~N Q23 ~YQ24 ~AQ25 B 0 0 0 Qoo 33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27 o UPON INSPECTION OF THE TRANSMITTER (MFC 140) IT WAS FOUND THAT OIL HAD "'APPARENTLY LEAKED FROM THE BELLOWS, INSIDE THE TRANSMITTER BODY, CAUSING IT TO DRIFT OUT OF SPECIFICATION. THE TRANSMITTER WAS REPLACED AND WAS SENT TO ITT BARTON FOR REPAIR AND EVALUATION OF THIS PROBLEM. THE ACTION ITEM RE(UIREMENTS 3

4 FOR T.S. TABLES 3.3-1 AND 3.3-3 WERE FULFILLED.

~O 7 8 9 80 FACILITY METHOD OF STATUS 'A POWER OTHER STATUS QBO DISCOVERY DISCOVERY DESCRIPTION Q32 CO LJO 6 C 28 0 2 6 29 NA 44

~AQ31 45 OPERATOR OBSERVATION 80 ACTIVITY CONTENT RELEASED OF REI.EASE AMOUNT OF ACTIVITYQ36 NA NA LOCATION OF RELEASE Q 6 Z Q33 Z Q34 7 8 9 10 11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION A3 7

7 8

~00 9

0 Oo~ZQo 11 12 13 NA 80 PERSONNEL INJURIES NUMBER DESCRIPTIONQ41 4 ~OO O Q4o NA 80 7 8 9 11 12 LOSS OF OR DAMAGE TO FACILITY TYPE Q43 z Q4.

DESCRIPTION NA 7P/z./7~2'.

7 8 9 10 80 O

ISSUED uNQ PUBLICITY DESCRIPTION ~ NA NRC USE ONLY 44 4o 4

8 9 10 68 69 80 44 616-465-5901 0 NAME OF PREPARER S. D. DeLong