05000255/LER-1979-019, Forwards LER 79-019/03L-0

Forwards LER 79-019/03L-0

ML18043A673
Person / Time
Site:	Palisades
Issue date:	05/10/1979
From:	Hoffman D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML18043A674	List: 05000255/LER-1979-019, Forwards LER 79-019/03L-0 05000255/LER-1979-019-03, /03L-0 on 790331:sump Drained to Auxiliary Bldg Floor Drains Through Test Connection Located Between Containment Bldg Isolation Valves.Caused by Communication Failure.Corrective Action Still Being Evaluated
References
790512, NUDOCS 7905150615
Download: ML18043A673 (1)

LER-1979-019, Forwards LER 79-019/03L-0

Event date:
Report date:
2551979019R00 - NRC Website

text

P.iiLISADES NRC FORM 366 (7-77)

U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT CONTROL BLOCK: I I G)

(PLEASE PRINT OR TYPE ALL REQUIREO INFORMATION) 1 6

[£ID 7

8 IM I I I~ I A I LI l* 101_0 I 0 I -I 0 I 0 I 0 I 0 I 01-I 0 I 0 101 411 I 1 11 I 1 101 I 10 9

LICc:NSEE CODE 14 1o LICENSE NUMBER 25 26 LICENSE TYPE 30 57 CAT 58 CON'T ITEl 7

8

~~~~~ I* L l©I 0 I 5 IO I 6 10 12 I 515 101 0 I 3 I 3 I ll 7 I 9 IG)I 015 I 11 01 7 I 9 IG) 60 61 DOCKET NUMBER 68 69 EVENT OATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES@

~!Because of difficu~ties encolU1tered while attempting to drain the contain-

[TIIJ 1ment bldg. sump to the dirty waste drain tank T-60, the sump was drained

~

jto the aux bldg. floor drains through the test connection located between

[£]}] 1the containment bldg. isolation valves.

This action resulted in operation [DD !in a degraded mode with respect to containment isolation capability.

Upon J

[]ID I discovery; the system was returned to normal.

[£1)) I verse effe.ct on public health or safety.

This occurrence had no ad-r I

7 8 9 eo [ill]

1 a

SYSTEM CODE I SIAI@

9 10

~

LE A/RO CV ENT YEAR

'0 REPORT I 7 I 91 NUMBER 21 22

CAUSE

CAUSE COMP CODE SUBCOOE COMPONENT. CODE

' SUBCODE IX I@ LI@ 1z I z !Z* 1z (l 1z 18 lz.J@

VALVE.

SU BC ODE LzJ@*

11.

12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REPORT NO.

CODE TYPE I 011 I 9J l.:::::J

[.o I 31

~ l=l 24 26 27 28 29 30. -

31 L=1 23 REVISION*

NO.

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32 EFFECT ON PLANT S~H~~g~N HOURS Gl AiJ~~~~T Ft;~~B.

P~~'1.~5~~P; LJ@lxJ@ W@ W o Io I o fU I L!J@

~124' I Zl'25\\

ACTION FUTURE

.TAKEN ACTION COMPONENT MANUFACTURER I z 19 19 19 I@

33 34 35 36 37 40 41 42

~ 43

'<::J CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @

44 47

[ The decision to drain the sump to the floor drain was made because the ITDJ.1 d-rain line to the drain tank T-60 was plugged.

Authorization was given bY1 ITI1J I the supervisor to drain through the drain line loop seal; hpwever, &~

apparent communication failure resulted in use of the test connection.

[ill]

'1"'T7'1 Corrective action* to urevent recurrence is still under evaluation.

~

'--~~~~~~~~~-=-~~~~~~~~~~~--.:.~~~~~~~~~~~~_J 7

8 9

FACILITY

~

STATUS

% POWER OT,HER STATUS ~

[!TI]~@ 1110 p J@._I _J1_r1_A ___

- Jj BO METHOD OF DISCOVERY DISCOVERY DESCRIPTION

~~pperator Observation 7

8 9

10 12 13 44 ACTIVITY CONTENT Q\\

RELEASED OF RELEASE AMOUNT OF ACTIVITY Q.li] I zl @ ~§._I

-"-N-'-/ __

A. _____ ---'

7 8

9 10 11 45.

46 80 44 LOCATION OF RELEASE@

P'ORSONNEL EXPOSURES Q..

NUMBER

~TYPE CESCRIPTlqN [2:]:?J I g 0 ! OlI z I@

N;A 11 12

~13:--~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~__J PERSONNEL INJURIES

~

80 NUMBER DESCR/IPTION~

[2}TI q OIO l@).__N_A _________________________

_J 8

9 8

9 11 12 LOSS OF OR DA~iAGE TO FACl LITY 14:3'1

. ;r TY 0 E DESCRl/PTJON

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@TI LI@!

N A

• ' y,:. L s

9 1~0:--~~~~~~~~~~~~~~~~~~~~"'--~~~~~~~~~~~~~~~~~~.J 80 80 PUBLICITY Q-.,

ISSUEDt,;:;\\ DESCRIPTIPN ~

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NI A I I I I ! I I I I I I I I 8

9 1~0~~~~~~~~~~~~~~~~~~~~~~~~~~~~---168 69 NRC USE ONLY 80