ML18219C364

LER 1976-008-00 Re Failure of Wind Speed & Direction Indication & LER 1976-009-00 Re Failure of Wind Direction System at Microwave Tower

ML18219C364
Person / Time
Site:	Cook
Issue date:	03/18/1976
From:	Jurgensen R Indiana Michigan Power Co
To:	James Keppler NRC/RGN-III
References
LER 1976-008-00, LER 1976-009-00
Download: ML18219C364 (8)

Text

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INDIANA & MICHIGANPDYYRR COMPANY DONALD C. COOK NUCLEAR PLANT g

P.O. Box 458, Bridgman, Michigan 49106 March 18, 1976

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(( VNR Mr. J.G. Keppler, Regio a Dip, Office of Inspection an fJfptcemenS i37PP United States Nuclear Re u'tory,,Commissio .

Region III 799 Roosevelt Road Glen Ellyn, IL 60137 Operating License DPR-58 Docket No. 50-315

Dear Mr. Keppler:

Pursuant to the requirements of Appendix A Technical Specifications and the United States Nuclear Regulatory Commission Regulatory Guide 1.16, Revision 3, Section 2.b, the following reports are submitted:

RO 50-315/76-08 RO 50-315/76-09 Sincerely, R.W. J gen n Plant anager

/bab cc: R.ST Hunter J.E. Dolan G.E. Lien R. Kilburn R.J. Vollen BPI R.C. Callen MPSC K.R. Baker RO: III P'.W. Steketee, Esquire RE Walsh, Esquire G. Charnoff, Esquire G. Olson J.M. Hennigan PNSRC 3080 R.S. Keith Dir., IE (30 copies)

Dir., MIPC (3 copies)

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CONTROL 8LOCK:

ICENSEE EVENT REPORT y

(PLEASE PRINT ALL REOUIRED INFQRlRATIDN) 6 UCENSEE i LICENSE EVENT NAME LICENSE NUiVIBEA TYPE M I 0 C C I 0 0 0 0 0 0 '0 0 0 A 1 TYPE.

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7 89 .14 15 25 26 30 31 REPORT REPORT CATEGORY TYPE SOURCE OOCICET NUMBER EVENT DATE REPORT OATS Ioa~] cowv, ~L ~L 0 9 0 0 3 1 5 0 2 2 3  ? 6 0 3 1 8 7 6 7 8 57 '58 59 60 61 68 69 74 75 EVENT DESCRIPTION

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Qo2 WHILE IN titODE 1 AT 81 PERCENT POWER, THE 150 FOOT WIND SPEED AND THE 80 FOOT WIND 8 9 DIRECTION INDICATIONS FAILED. NO GASEOUS RELEASE WAS IN PROGRESS ~ INVESTIGATION QP3 80 ON 2/23/76 FOUND BOTH INSTRUMENTS ON'HE MICROWAVE TOWER ICED UP. THE'INSTRUMENTS 7 8 9 80 Qo5 WERE THAWED WITH A HEAT GUN AND RETURNED TO SERVICE.

7 8 9 80 7

m89 ( RO-50-315/76-08 )

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PAME SYSTEM CAUSE COMPONENT COMPONENT CODE CODE " COMPONENT CODE SUPPUEA, MANUFACTURER VIOLATCN 7

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43 44 x 9 9 9 47 48 CAUSE OESCRIPTION

~08 THE CAUSE OF THE INSTRUMENT FAILURE WAS A SLEET STORM WHICH CAUSE THE TRANSMITTERS TO 7 aS

~09 BECOME COVERED WITH 'ICE, 'RESTRICTING MOVEMENT 'OF MOVING PARTS.

7 89 80

.7 89 FACILITY ~

METHOD Of.

80 STATUS 99 POWER -

OTHc:A STATUS OISCOVEAY OISCOVERY DESCRIPTION

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~E ~08 1 .NA 44 B. ROUTINE SURVEILLANCE 80 7 8 9 10 12 13 45 46 Q~g 7 8 FORM OF ACTIVITY RELEAS'EO 9

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OF RELEASE

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'MOUNT OF ACTIVITY 44 45 NA LOCATION OF RELEASE 80

,. PERSONNEL EXPOSURES NUMBER TYPE OESCAIPTION Pcs] ~00 0 ~Z NA 7 89 'l1 12 13 80 PERSONNEL INJURIES NUMBEA OESCRIPTION

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NA 80 7 11 12 PROBAHLTE CONSEQUENCES

~1 5 NONE -- GASEOUS RELEASES WERE'SUSPENDED AS REQUIRED.

7 89 80 LOSS OR OAMAGE TO FACILITY TYPE 'ESCRIPTION Q~g Z NA 7 89 10 80 PUBLICITY NA 7 89 80 AOOITIONAL FACTORS

[118] H [S [N PROORESS TO HEAT TRACE THE STATIONARY PORTION OF THE TRANSMITTERS TO 7 Bs So Q~B P ENT RECURRENCE OF THIS PROBLEM.

7 as 80 G. SWAN PHoNE. 616 465-5901 368)

GPO 88'I ~ 6 87

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<<)'pe~-4 IOENBEE EVENT REPORT CONTROL BLOCK: (PLEASE PRINT ALL REaVIREO WFORIVIAVION)

%5 LICENSEE LICENSE EVENT NAME UCENSE NUMBER TYPE TYPE

+01] I4 I 0 C C 1 0 0 0 0 0 0 0 0 0 4 1 1 1 1

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7 89 14 15 25 26 30 31 32 REPORT REPORT CATEGORY TYPE SOURCE OOCKET NUMBER EVENT OATE AEPOAT OATE

[001I CON'5 0 5 0 0 3 1 5 0 2 2 5 7 6 0 3 1 8 7 6 7 8 57 58 59 60 61 68 69 74 75 80 EVENT DESCRIPTION 7

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Qo2 7 8 9 89 QoO4]

8 9 WHILE IN MODE 1, AT 81 PERCENT POWER, THE 50 FOOT WIND DIRECTION SYSTEM AT THE BLESHOOTING PROCEDURES A NEW TRANSLATOR WAS RECEIVED FROM WEATHERMEASURE CORPORATION IDENTIFIED A FAILED TRANSLATOR.

3-1-76. THE SYSTEM 80 80 80

[oaf WAS CALIBRATED RETURNED TO SERVICE, AND DECLARED OPERABLE 3-3-76.

7 8 9 80

[oO~] R 3 5 6-09 7 8 9 PA95IE F

80

'SYSTEM CAUSE COMPONENT COMPONENT COBE COOE 'OMPONENT CODE SUPPUER MANUFACTURER

[005I ~IE E I 0 S Y R 0 0 X 9 9 9 ~Y 7 8 9 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION Q~g CAUSE WAS FAILURE OF THE TRANSLATOR DUE TO NORI'lAL USAGE. CAUSE OF VIOLATION WAS 7 8 9 80 Qol FAILURE OF THE OH HAND SPARE TRANSLATOR TO BEOPERATIONALAT THE TIME OF THE SYSTEM 7 8 9 80

~10 FAI LURE.

7 89 OTHER STATUS OISCOVEAY OESCRIPTION ROUTINE SURVEILLANCE 7 8 9 10 12 13 44 45 46 80 FORM OF ACTIVITY COATENT RELEASEO OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE Qig ~Z Z NA NA 7 8 9 10 11 44 45 80 PERSONNEL. EXPOSURES 7 89 11 12 13 Bo PERSONNEL INJURIES NUMBER OESCAIPTION

~l4 ~00 '0 NA 7 89 11 12 80 PROBABLE CONSEQUENCES Q1 g NOI'IE -- GASEOUS RELEASES WERE SUSPENDED AS REQUIRED.

7 89 80 LOSS OR DAMAGE TO FACILITY TYPE OESCRIPTION 7 8 9'02 PUBLICITY NA 80 NA 7 89 80 ADDITIONAL FACTORS Q18 THE TWO INOPERABLE TRANSLATORS HAVE BEEN RETURNED TO THE MANUFACTURER FOR REPAIRS 7 8 9 80

.Q~ 9 OR REPLACEMENT.

7 89 80 NAME: PHDNE (616)465 5901 (368)

GPO 881 667

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U.S. NUCLEAR REGULATORY COI 'SSION DOCKET NUMBER NRC FORM 195 (2-76) 50-FILE NUMBER gy NRC DISTRISUTION FaR PART 50 DOCKET MATERIAL INCIDENT REPORT TO FRDM: Indiana 8 Michigan Power DATE OF DOCUMENT J.G. Keppler Michigan Co.'ridgman, 3-R.W. Jurgensen DATE RECEIVED 3 26-76 OLETTER 0 NOTOR IZE D PROP INPUT FORM NUMBER OF COPIES RECEIVED I7IOR IG INAL SUN C LASS IF I E D QCOP Y DESCRIPTION ENCLOSV RE Ltr. trans the following....... RO¹~'76-08, on 2-23-76, Concerning Instrument Failure.......

RO¹ 76-09, on 2-25-76, Concerning Failure of Translator due to Normal Usage...... 'he (1 Cy. Received)

PLANT NAME: Cook ¹ 1 NOTE: IF PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY TO KREGER/J. COLLINS SAFETY FOR ACTION/INFORMATION ENVIRO 76 BRANCH CHIEF: nie W 3 CYS FOR ACTION LIC ASST: e ice W/ CYS ACRS CYS HOLDING/ ENT TO LA INTERNAL D IST RI BUTION NRC PDR ICE 2 SCHROEDER/IPPOLITO O

NOVAK CjiECK R MES ~

B' TEDESCO MACCA E E BAER SHAO VOLLMER BUNCH KRE ER J COLL NS EXTERNAL DISTRIBUTION CONTROL NUMBER LpDR: . osep , ic an TIC NSIC 3090 NRC FORM 196 (2-76)

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