05000315/LER-1979-058-01, /01T-0:on 791115,flow Path from Unit 2 motor- Driven Afp Steam Generators 1 & 4 Was Inoperable.Caused by Power Supply to Motor Operated Valves FMO-212 & FMO-242 Being Removed for Routine Insp.Power Restored

/01T-0:on 791115,flow Path from Unit 2 motor- Driven Afp Steam Generators 1 & 4 Was Inoperable.Caused by Power Supply to Motor Operated Valves FMO-212 & FMO-242 Being Removed for Routine Insp.Power Restored

ML17326A370
Person / Time
Site:	Cook
Issue date:	11/29/1979
From:	Chadwell H INDIANA MICHIGAN POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17318A483	List: 05000315/LER-1979-058, Forwards LER 79-058/01T-0 05000315/LER-1979-058-01, /01T-0:on 791115,flow Path from Unit 2 motor- Driven Afp Steam Generators 1 & 4 Was Inoperable.Caused by Power Supply to Motor Operated Valves FMO-212 & FMO-242 Being Removed for Routine Insp.Power Restored
References
LER-79-058-01T, LER-79-58-1T, NUDOCS 7912070377
Download: ML17326A370 (3)

LER-1979-058, /01T-0:on 791115,flow Path from Unit 2 motor- Driven Afp Steam Generators 1 & 4 Was Inoperable.Caused by Power Supply to Motor Operated Valves FMO-212 & FMO-242 Being Removed for Routine Insp.Power Restored

Event date:
Report date:
3151979058R01 - NRC Website

text

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

CENSEE EVENT REPORT CONTROL BLOCK:

Q1 (PLEASE PRINT OR TYPE ALLREQUIRED INFORMATION)

I 6

N I

0 C

C 1

Qs 0

0 0

0 0

0 0

0 0

0 0 Qs4 1

1 1

1 Qs~Qs 7

8 9

LICENSEE CODE 14 15 LICENSE NUMBER 26 LICENSE TYPE 30 57 CAT 58 CON'T soURGE LLJQB 0

5 0

0 0

'3 1

5 Q7 1

1 1

5 7

9 Q 1

1 2

9 QB 7

8 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES QIO

~O2 DURING NORMAL OPERATIONS WHILE THE TURBINE DRIVE AFP WA UT F

ERVICE FOR

~03 GOVERNOR RfPAIRS, THE FLOW PATH FROM THE UNIT 2 MOTOR DRIVEN AFP TO ¹1 AND ¹4

~o 4

STEAM GENERATORS ON UNIT 1

WAS MADE INOPERABLE WHEN THE POWER SUPPLY TO MOTOR

~o 6

OPERATED VALVES FMO-212 AND FMO-242 WAS REMOVED.

THIS IS CONTRARY TO T.S. 3.7.1.2.

~o 6

THE FLOW PATH FROM THE UNIT 1

MOTOR DRIVE AFP TO 2

ND 3

STEAM GENERATORS

~o.

7 REMAINED OPERABLE.

~OB 7

8 9

80 7

8 SYSTEM

'AUSE

CAUSE

COMP.

VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE

~CH Q>>

A, Qn

~AQs 2

2 2

2 2

2 Q4 ~2

~2Q 9

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

CODE TYPE NO.

Q17 RsPQRT QQ

+

LJLI~}J Q~

QQ

+

Q 0

21 22 23 24 26 27 28 29 30 31 32 ACTION FUTURE EFFECT SHUTDOWN

~ 'TTACHMENT NPRDQ PRIME COMP.

COMPONENT TAKEN ACTION ON PLANT METHOD HOURS Q22 SUBMITTED FORM SUB.

SUPPLIER MANUFACTURER

~XQ>s LZJQto

~ZQss

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0 0

0 0

Qss

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Z Z

Z Qss 33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27 o

UNIT 2 MOTOR CONTROL. CENTER WHICH SUPPLIES POWER TO THE TWO UNIT 1

MOTOR OPERATED AUXILIARY FEEDWATER VALVES WAS REMOVED FROM SERVICE FOR ROUTINE INSPECTION.

IN GRANTING CLEARANCE ON THE MOTOR CONTROL CENTER IT WAS PROPERLY NOTED ON THE FORM THAT THE TWO VALVES WOULD BE HADE INOPERABLE BY THAT ACTION.

THE PERSON GRANTING 4

THE CLEARANCE FAILED TO REALIZE THAT THE UNIT 1

TURBINE

(.CONTINUED PAGE 2) 7 8

9 FACILITY STATUS i

% POWER OTHER STATUS QBO DZG L~JQss ~l0 0 8 NA 7

8 9

10 12, 13 44 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNTOF ACTIVITYQ EZ L~JQ33 Z Q NA 7

8 9

10 11"'4 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION Q39

~00 0

Qss 2

Qs NA 7

8 9

11 12 13 PERSONNEL INJURIES NUMBER DESCRIPTIONQI

~ls

~OO O

Qss NA METHOD OF DISCOVERY LAJQ>>

45 46 45 DISCOVERY DESCRIPTION O32 OPERATOR OBSERVAl ION LOCATIONOF RELEASE Q NA 80 80 80 80 7

8, 9

11 '2 LOSS OF OR DAMAGETO FACILITYQ43 TYPE

DESCRIPTION

~19

~ZQ42 7

8 9

10 PUBLICITY ISSUED DESCRIPTION ~S o

~Qnn 7

8 9

10 NAME OF PREPARER H.

M.

CHADWELL PHONE:

68 69

'O ss 80s g 0a0 80 7P~

'Z oy

.7 80 NRC USE ONLY

C

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SUPPLEMENT TO LER 8 79-058/OlT-0 PAGE 2

CAUSE

DESCRIPTION AND CORRECTIVE ACTIONS:

DRIVEN AFP WAS ALSO INOPERABLE.

FIVE MINUTES AFTER THE VALVES WERE DE-ENERGIZED HE DISCOVERED HIS ERROR AND IMMEDIATELY TOOK STEPS TO HAVE THE POWER RESTORED.

THE VALVES WERE INOPERABLE FOR A TOTAL OF 12 MINUTES.

A STATUS BOARD HAS BEEN PROVIDED TO SIMPLIFY THE TRACKING OF THE OPERABILITY STATUS OF THE AUX FEEDWATER SYSTEM OF BOTH UNITS.

AF.t.'

)s79