ML17331A408

LER 80-028/03L-0:on 800709,testing of Motor Driven Auxiliary Feedwater Pump During Blackout Conditions Showed Two Safety Injection Relay Timers Exceeded Tech Spec Allowed Tolerance.Caused by Instrument Drift

ML17331A408
Person / Time
Site:	Cook
Issue date:	07/29/1980
From:	Rischling J INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17331A407	List: ML17331A406 ML17331A408 ML17331A409
References
LER-80-028-03L, LER-80-28-3L, NUDOCS 8008040094
Download: ML17331A408 (1)

Text

NRg FORM $ 66 (7.77)

L(CENSEE EVENT REPORT

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

I 6 M I C C 2 Q2 0 0 0 0 0 0 0 0 p p p Q3 4 I I I I QR~Q5 7 8 9 LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE 30 57 CAT 58 CON'T REPORT 0 5 0 0 0 3 1 6 0 7 0 9 8 0

~LQB 7 6 0 7 2 9 QB 7 8 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT OESCRIPTION ANO PROBABLE CONSEQUENCES 010 AFTER THE INSTALLATION OF AN ADDITIONAL MOTOR DRIVEN AUX FEEDWATER PUMP (MDAFP) SUBSEQUENT TESTING OF THE WEST MDAFP DURING BLACKOUT

~p4 CONDITIONS REVEALED THAT TWO SAFETY INJECTION RELAY TIMERS EXCEEDED

~OS THE TOLERANCE ALLOWED BY T.S. 4.8.1.1.2.C.2. THE AFFECTED PUMPS WERE THE 2W-RHR PUMP AND THE 2 W-CCW PUMP.

~OB

~OB I

7 8 80 SYSTEM CAUSE CAUSE COMP. VAI.V5 CODE SUBCODE COMPONENTCODE SUBCODE 8

CODE SUBCOQE 7 8

~EG Q1'EQ72 9 10 11

~A 12 13 R E L A 1 S 18 L~JGR 19 LiJ 20 SEQUENTIAL OCCURRENCE REPORT REVISION Q17 LERIRP REPQRT ACTION FUTURE EVENT YEAR

~80 21 22 EFFECT

~

23 SHUTDOWN

~02 24 REPORT NO.

8 26

~~

27

~03 28 ATTACHMENT CODE 29 NPRDA TYPE

~L 30 PRIME COMP.

31

~0 NO.

COMPONENT TAKEN ACTION ON PLANT METHOD HOURS +22 SUBMITTED FORM SUB. SUPPLIER MANUFACTURER Q79 ~Q79 ~Q20 ~Q27 Q23 ~Q24 PJQ25 33 34 35 36 ~ 37 40 41 42 43 44 47 CAUSE OESCRIPTION ANO CORRECTIVE ACTIONS +27 THE 2W-RHR PUMP START TIME EXCEEDED THE T.S. ALLOWABLE VALUE BY 4 PER-CENT WHILE THE 2W-CCW PUMP EXCEEDED THE T.S. ALLOWANCE BY 1.3 PERCENT.

THE TIMER RELAYS ARE MANUFACTURED BY AGASTAT, MODEL NO. 7012. THE, TIMERS WERE READJUSTED TO WITHIN ALLOWABLE VALUES. THIS EVENT WAS 4

ATTRIBUTED TO INSTRUMENT DRIFT",AND NO FURTHER ACTION IS PLANNED.

80

~

7 8 9 FACILITY ~SP METHOD OF STATUS  % POWER OTHER STATUS DISCOVERY DISCOVERY DESCRIPTION Q32 CT31 5 H Q25 ~00 0 Q29 NA ~EQ37 DESIGN CHANGE TEST 8 9 10 12 13 44 45 46 80 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNT OF ACTIVITY Q LOCATION OF RELEASE Q 7 8

~ZO ~ZQ 9 10 NA 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION QSB

~ll 7 8

~00 9

0 11 Q37 ~Z 12 Q39 13 NA 80 PERSONNEL INJURIES 7 8 9 11 12 80 LOSS QF QR DAMAGE TO FACILITY TYPE DESCRIPTION Q43 Z Q42 NA 7 8 9 10 80 PUBLICITY p

IS ED

~NQ44 DESCRIPTION Q NRC USE ONLY 8 9 10 68 69 80 o J. L. Rischling 616-465-5901 0 NAME OF PREPARER PHONE 0