05000255/LER-1979-028, Forwards LER 79-028/03L-0

Forwards LER 79-028/03L-0

ML18043A854
Person / Time
Site:	Palisades
Issue date:	07/24/1979
From:	Hoffman D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML18043A856	List: 05000255/LER-1979-028, Forwards LER 79-028/03L-0 05000255/LER-1979-028-03, /03L-0 on 790623:conductivity & Sodium Concentration in Steam Generator a Exceeded Tech Spec Limits.Caused by Combination of Condenser Tube in Leakage & Chemical Hideout Return as Result of Power Reduction
References
NUDOCS 7907300383
Download: ML18043A854 (2)

LER-1979-028, Forwards LER 79-028/03L-0

Event date:
Report date:
2551979028R00 - NRC Website

text

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~©mm ~rJJ fi\\lW General Offices: 212 West Michigan Avenue, Jackson, Michigan 49201 * (517) 788-0550 July 24' 1979 Mr James G Keppler Office of Inspection and Enforcement Region III US Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 DOCKET 50-255 - LICENSE DPR PALISADES PLANT - LICENSEE EVENT REPORT 79-028 On the reverse side is Licensee Event Report 79-028 which is reportable under Technical Specification 6.9.2.b.(2).

~cJO~~

David P Hoffman Assistant Nuclear Licensing Administrator CC:

Director, Office of Nuclear Reactor Regulation Director, Office of Inspection and Enforcement

1 PALISADES NRC FORM 366 (7-77)

U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT CONTROL BLOCK: ~' ~~~~'--~'--'--~I CD 1

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{PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

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I Ml r I P I A I L I 1101 o I o I o I o Io I o I o I o I o I ol o 1014 I 1 I i I 1 I J 101 I I © 7

8 9

LICENSEE CODE 14

,5 LICENSE NUMBER 25 26 LICENSE TYPE 30 57 CAT 58 CON'T filD 7

8

~:~~~ ~©I o I 51 o I o I o I 215 I 5 101 o I 6 I 21 3 I 7 I 9 101 o I 7 I 21 4 I 7 I 9 I G) 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES@

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I Diiring load reduction in preparation for repairs of main condenser tube

@ID I leaks, the conductivity and sodium concentration in the A steam generator

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I increased to 25.6 micro-mho/cm and 1.58 ppm.

(B S/G: 22.9 micro-111.~o/cm [Q))] I and 1.01 ppm).

These valves exceeded the limits of TS 3.18.1. Chemistry [ill] 1was returned to within specifications within the time limits of TS 3.18.3

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I and 3.18.5.

No threat to public health or safety existed.

Occurrence [Q]TI similar to LER 79- 02 7 7

8 9

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7 8

SYSTEM CODE I HjB I@

9 10

(.:;\\

LE RIRO CV ENT YEAR

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REPORT I 7 19 I NUMBER 21 22

CAUSE

CAUSE COMP:

CODE SUBCODE COMPONENT COOE SUBCOOE l!J@ ~@ lli._ IT I EIX I c I Hl8 L!.l 11 12 13 18 19 SEQUENTIAL OCCURRENCE REPORT REPORT NO CODE TYPE VALVE SU8CODE L1J@

20 L=.J 1°121§_]

L:::::J 10131

~ l=1 23 24 26 27 28 29 30 31 ACTION FUTURE EFFECT SHUTDOWN r:;:::;.,

ATTACHMENT NPRQ-4

• PRIME COMP.

REVISION NO.

L9_J 32 COMPONENT MANUFACTURER 80

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TAKEN ACTION ON PLANT METHOD HOURS ~ SUBMITTED FORM SUB.

SUPPLIER LxJ@LzJ@

LzJ@

Lz.J Io I ol o Io I W@ W l.NJ@)

33 34 35 36 37 40 41 42 43 le l!.t I 9lo I@

CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @

44 47

!The out of spec condition resulted from a combination of condenser tube l in leakage and chemical hideout return as a result of the power ITID...

[JJ]J 1reduction.

The condition was corrected through S/G blowdowns and

!plugging of leaking main condenser tubes.

ITTIJ.

[IE) 7 8

9 FACILITY STATUS

% POWER OTHER STATUS @

METHOD OF r.;::;.,

80 GliJ L!J@ 10 171 5]@)._I __

NA __

DISCOVERY DISCOVERY DESCRIPTION

~~l'--~~-C_h_em_i_*s_t_r_y~S_am~p_l_e~~~~~---'

8 9

10 12 13 ACTIVITY CONTENT Q..

REL'Z'SED OF R~LEASE AMOUNT OFN'_ATIVITY ~

CiJil L:'.J@ ~@._I _______

7 8

9 10 11 45 46 80 LOCATION OF RELEASE @

NA 44 45 80 PERSONNEL EXPOSURES r:;;:::-.

NUMBEP.

~TYPE

DESCRIPTION

02] I 0 I 010 '~@.__ __

=NA:..::._ ____________________

7 8

9

, 1 12 13 BO PERSONNEL INJURIES Q

NUMBER

DESCRIPTION

6

~IOI OIO l@).__ _____

N_A ____________________ __.

8 9

11 12 LOSS oc OR DAMAGE TO FACILITY t;j3\\

TYPE

DESCRIPTION

~

80 [QI] ~@)..,__ _______

N_A _____________________

~

8 9

10 80 PUBLICITY Q..

NRC USE ONLY ISSUED DESCRIPTION~

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9 10 68 69 80 I