ML18018B152

LER 77-022-00 for Nine Mile Point Unit 1 Regarding Discovery of Linear Indications on Three Collet Retainer Tubes in Drive Mechanisms Removed from the Reactor Vessel

ML18018B152
Person / Time
Site:	Nine Mile Point
Issue date:	05/12/1977
From:	Schneider R Niagara Mohawk Power Corp
To:	O'Reilly J NRC Region 1
References
LER 77-022-00
Download: ML18018B152 (6)

Text

U.S. NUCLEAR REGULATORY CO ISSION DOCKET NUMBER l4RC FORM sa>>

I2.78)

FILE NUMBER f.'RC-DISTRIBUTION FQR PART 50 DOCKET MATERIAL INCIDENT REPORT TO: FROM: DATE OF DOCUMENT Niagara Mohawk Pwri 5/12/77 Mr. Jaines P. O'Reilly New York Corp'yracuse, DATE RECEIVED Ri R,'chneider 5/20/77 ETTE R ONOTORIZED PROP INPUT FORM NUMBER OF COPIES RECEIVED

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Q ORIGINAL &UNCLASSIFIED I OCOPY DESCRIPTION ENCLOSURE

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Licensee Event Report (RO 50-220/77-22) on 3/10/77 concerning the finIIing of linear indications on three coll'et. retainer tubes, QW<Jl,gggD in drive'nechanisms xemoved from'he" reactor vessel ~ ~ ~ ~ ~

BO NOT REMOVE ine Mile Point Unit No. 1 (1-P) (1-P)

JL NOTE ~ IP PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY TO KREGER/Jo COLLINS FOR ACTION/INFORMATION BRANCH CHIEP:

W 3 CYS FOR ACTION

,LICo hSSTo:

W..CYS ~ ~

MCRS CYS HOQQHQ S NT. ,

INTERNAL D IST RI BUTION REG--'PILE MIPG SCHROEDER/IPPOLITO HOUSTON NOVAK/CHECK GRIMES MUTTER Hh UER TEDESCO/MACCARY EISENHUT BAER VOLLMER/BUNCH KREGER/J COLLINS EXTERNAL D ISTR I BUTION CONTROL NUMBER

.LPDR TIC: 77i4 2 N ~

NRC FORM 195 (2.76)

0 N(P-0023 NIAGARA MOHAWK POWER CORPORATION NIAGARA

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MOHAWK 300 ERIE BOULEVARD, WEST SYRACUSE. N. Y. 13202 hfay 12, 1977 gI;IIUII()g79IRiLIfItII.(Ill)Im 8p h(II.. Jamu P. O'ReLVy PMmt'oh, ~e Q e U~ed S~u Nues~ Regula'os Comm@lion Region 7 631 PaII,k Avenue (~

King o$ P~am, PA. 19406 RE: 0ocket No. 50-220 8~ Sr.. O'R~y:

7n accoruhnce ~ one h4Le Pet Nucleus S~n Specipcatiom, uIe hereby submit Licensee Event RepoM LER 77-22. TkQ U~ II 1 Technical cepoM ad complied in Che $ otonat designated in Xhe Liceruee Event.RepoM 7m~~n BooLLet 00E-SS-001 dated October 1974, nevmed Vecembn 8, 1975.

This LERLs being ~m~ed beyond She 44Xty (30) day ~e Lv~;

a veIIbaL ceps AIM made. Co ~. L. Nomho& on hkucch 17, 1977.bLt'Xhe adIIIinmWative uIoek sheet Iom noC compZMed at Chat ~e. Comequ~y Ae X~y (30) day tcepoM use noC sub~ed in a ~eLy manners.

in&v&uaLe uIeIIe info~ed 4o (olLouI Che Adjoin,Q~Wve Peocedme %ctalking RuporuibLe We pcocua Joe i~~ng Occ uvcence Repo~.

Votary ~y yo~,

R.R. SchneideII.

V~ce Pauident-ELectIIic Paodu~on h(AS/mtm

V Qa

CONTROL BLOCK:

IOENBEE EVENT REPORT

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(PLEA8E PRNIT ALL REQUIRED INFORMATION)

CI ~ 1 UCENSEE UCENSE EVENT NAME LICEttSE NUMBER TYPE TYPE Qg N Y N hl P 1 4 1 1 1 1 ~03 89

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7 14 15 25 26 30 31 32 REPORT REPORT CATEGORY TYPE SOURCE DOCKET NUMBER EVENT DATE REPORT DATE

~O< OON'T Li 0 S 0 0 22 0 ' 3 1 0 7' 0 5 1 2 7 7 7 8 57 58 59 60 61 68 '69 74 75 80 EVENT DESCRIPTION 7

I Qpg 8 9 During scheduled control rod drive maintenance, collet retainer tubes in drive mechanisms found removed from the linear indications reactor. vessel.

on three 80 I

7 89 80 7 8 9 80 LER 77-22 7 8 9 FAME 80 SYSTEM CAUSE COMPONENT COMPONENT CODE CODE COIJIPONENT CODE MANUFACTURER

[os] ~RB ~B R D R V E ~N LGG 0~80 N 7 8 9 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION t008] Ins ections were made 3/10/77; 3/14/77 and 3/17/77 and reported verbally to the Station 7 8 9 Qgy Su erintendent and to..the NRC.

7 8 9

[iso]

7 89, METHOD OF 80 OTHER STATUS OICOVERY DISCOVERY DESCRIPTION 7

EG1 8

hJ 9

LOJa.dad 10 12 13 44 B

45

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46 NA 80 FORM OF ACTIVrrY COATENT RELEASEO OF RELEASE AMOUNT OF ACTIVITY I.OCATION OF RELEASE

+12] Z Z NA NA ~

7 8 9 10 11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION

[hhol ~00 0 8 NA 7 89 11 12 13 60 PERSONNEL INJURIES NUMBER DESCRIPTION

[0000J NA 7 89 11 12 60 QRgggg CONSEQUENCES PROBABLE Q~g 7 69 80 LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION Q1g ~Z NA 7 89 10 80 PUBLICITY NA 7 89 80 ADDITIONAL FACTORS 7 8 9 80 7 89 80 PHONE:

CPC 00 I 667

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