05000255/LER-1980-044, Forwards LER 80-044/03L-0

Forwards LER 80-044/03L-0

ML18046A259
Person / Time
Site:	Palisades
Issue date:	12/23/1980
From:	Frost S CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML18046A260	List: 05000255/LER-1980-044, Forwards LER 80-044/03L-0 05000255/LER-1980-044-03, /03L-0:on 801125,closure Head Fasteners on Return Head Flange of Letdown Heat Exchanger Found Corroded.Caused by Contact W/Borated Water Leaking from Flange Due to Improper Assembly of Closure Head.Damaged Studs Replaced
References
NUDOCS 8012300406
Download: ML18046A259 (2)

LER-1980-044, Forwards LER 80-044/03L-0

Event date:
Report date:
2551980044R00 - NRC Website

text

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consumers Power company General Offices: 212 West Michigan Avenue, Jackson, Michigan 49201 * (517) 788-0550 December 23, 1980 Mr Jame~ G Keppler Office of Inspection and Enforcement Region III U S Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 DCCKET 50-255 - DPR PALISADES PLANT - LICENSEE EVENT REPORT 80-044 LETDOWN HEAT-EXCHANGER On the reverse side is LER 80-044 which is reportable under Technical Specifications 6.9.2.B(4).

Steven R. Frost Palisades Licensing Engineer CC Director, Office of Nuclear Reactor REgulation Director, Office of Inspection and Enforcement NRC Resident Inspector, Palisades Plant

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.ISADES PLANT NRC FORM366 17-771 U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT CONTROL BLOCK: I 10 CPLEASE PRINT OR TYPE ALL REQUIRED INFORMATIONI I

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LICENSEE CODE I*

'S LICENSE NUM6ER 2S 26 LICENSE TYPE 30 S7 CA~ &8 CON'T [TI!]

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11 I 2 I 2 I 3 I 81 o 10 60 61 DOCKET NUPl.BER 68 69 EVENT DATE 74 75 REPORT DATE BO EVENT DESCRIPTION AND PROBABLE CONSEQUENCES@

I While investigating a leak at the return head flange of the letdown heat-

[£J2J I exchanger, the closure head fasteners were noted to be corroded.

Conditio~

~I reportable per TS 6.9.2.B(4).

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SYSTEM

CAUSE

CAUSE COMP.

CODE CODE SUBCODE COMPONElllT CODE SUS CODE VALVE SUBCODE IP ICI@ W@ LQJ@) IH IT! EIX !'.' IH 18 Ll ~@

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LER*RO CVENT YEAR

\\:.:) REPORT I 8 I 0 I Nur.~SEA 21 22 SEQUENTIAL OCCUF.RENC:E REPORT REPORT NO.

CO<JE TYPE I

I ID 141 41 I/I Io I 31

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23 24 26 27 2B 29 30 20 l=.I 31 ACTION FUTURE EFFECT S"IUTDOWN r.;:;..

ATTACH~'E!-,;T NPR~

PRl'.'E COMP.

TAKEN ACTIOl\\I ON PLANT 1-/.ETHOD HOURS ~ SUBMITTED FORM ~us.

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• 1 42 SUPPLIER L!!J 43 REVISION NO.

LQJ 32 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @

)Stud corrosion caused by contact witp borat~~ water which leaked from the [IlI] I flange.

LeakaP-"e resulted from auuarent imurouer assemblv of closure head OJ}] I (improper seqJJenci ng aurj ng rn1t. t.arqi1i'ng s11spected) I Damaged. studs have

£JJ2J I been reulaced.

Use of corrosion - resistant studs is being investigated.

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FACILl"':"V OTHER STATUS @

1-/.ETHOD OF r:;::;.,

BO BO ST 'CIUS

',.;POWER DE L:j@ 10 I o 10 1@1 Cold Shutdown DISCO\\IERV

11SC:OVERV DESCRIPTION ~

L!J~l.____O_b_s_e_r_v_a_t_i_o_n~~~~~~~~~----

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9 10 12 13 44 ACTIVITY CONTENT r.;;-.,

RELEASED OF RELEASE AMOUNT OF ACTIVITY EE)~@) ~@I NA j

7 B 9 10 11 44 cs 46 80 LOCAT;ON OF RELEASE @

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N_A _______

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cs BO PE RSONl;EL EXPOSURES r.;;:..

NUMBER r.;:;.. TVPE DESCRIPTIOl\\I

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9 11 12 13 BO PERS0!;N£L INJURIES

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NUf/BER DESCRl*TION~

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N_A _________________ -.,-__

7 e 9 11 i2 LOSS o< OR DAPt."GE TO FACILITY '4J'i [21D lvzel@ DESCRIPTION

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10 BC PL'BLICITV C\\

ISS:,lEDc;\\ DESCRIPTION~

NRC USE ONLY l:ITI] l!:J6 NA I I I I I I I I I I I f 7

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