ML19320A104

AO 50-313/74-13:on 741123,reactor Monitor Sys Failed to See Coolant Pump Trips.Caused by Monitoring Relay Maladjustment. No Hazard to Health & Safety

ML19320A104
Person / Time
Site:	Arkansas Nuclear
Issue date:	11/25/1974
From:	Phillips J ARKANSAS POWER & LIGHT CO.
To:
Shared Package
ML19320A095	List: ML19320A094 ML19320A100 ML19320A104 ML19320A110
References
NUDOCS 8004140709
Download: ML19320A104 (1)

Text

j . . Y G '. '

p. i:c:' '. (l *( '4 3 A t .+. 6 . .. .'.,,.-, .. . , , ,

V 0 4 . .T.:1E;C9 11/C /"u ,

a .:

• ' ' ' ~ ~ ' ~ '

E~ # 5

. i. !;mencz CGP o.-  :.: .- S u:u '

. L. .. a :.: d *5 ti '5 m

J '5724311 #1011 700N LITTLC ROCit AR 11*as 0620P E07 " . . .' 7,' '. .*

/ " . . ' 30393 C}

Uni:11 Atl C MO.'U't,CY, OtDCC70R DIP.CC70 RATE OF R'OtlL A70a7 OPERATIONO

~P ICri .1 Ufl!7CD .:7 A7 $ A70ti: C CM2RGY .COMH!05:0'l

' 'O P3ACli1HCI ' 7 f40R7Hi!C07 GUI72 Gia

'7LANTA OA 30;uj

~

Cll0 JECT ARKANSAS NUCLEAR ONE UNIT ONE ADNORi1Al..OCCui:RENCE NUMDER -

rg=312spli.133 THIS ThLCUR AM SilPPt.EMEN73 TELEGRAll OF 11.3ttw7n, SAMC SUBJECT, A7 W 3 G H alliiG Ott 1 ' '* 25

• 7 4, RCAC703 PGiGil AT RS ICi; CENT, f!DC70R COOLANT NfiP D liar. TRIP;CO F0il 3 PutlP C?~RAf!OM .507,: TliC.PutiP MGM2700-in:'.:4Y PROV:0!NCsINDICA720N OF Puni2 TRIP YO 7 l:. RP3 0?DN7 0l10P"CUh' O PUMP'WA3 REG 7AN720 AND AGAIN>7RIPPF,0 H17H'S!!1Ut.AR AC3UL70; A -

Pyt19 H AG TRIPPCD AND 0 PUMP H AG' AGAIN R20i AR7CD. THE PUNP' HONITOR -

Cr. LAY ON A PullP ::?SPON0ZD PROPSdLY, C PUMP HA3 TRIPPE0 h!7H ITG- -

NELAY REGPONDING PROPERLY. CONCURRENT WITH C PUMP TRIP,-7Hi! O PUtiP:

U

) r!ONITOR' R5t. AY AL30 7RIPPE0 (DiPUNP 37!!.t. RUNNIMG) RESl!L7ING %N A RCACTOR TRIP.10EGIGN t!u01 FICA 7!QNG ARE IN PilDGH.450: 70<PH0VICE -

0 ' 4 TC37 AG"!;77V 00F THE0E. ret,4YSi17HERC W A3nN0"H Anit0 '70 ~71)E ME AL7Ms -

l'1D UA. CYY OF 7:F: P1101,IC AG 71!I RCAC70R 7CIi'PCD 70 A Ct.FE CCNDITICil I.NJ FAILURC: OF TitCGC ret,AYO W AS DAC ;l.'D UP DY RPG FLUX /IllDAl,AllC:I/ FLOW TRIP AND VARIOUS INDICATIC43 70 Tile OPCRATOR 4 J 0 PHILLIPS SENIOR VICE PRESIDENT 19:26 E07' - ' -

x.- -

- - . r t-t1 C il A 7!,7 H G A

. . ,g . ,. . ,, .. .. .., .; -

sw e u31. , -

e (G

80041407#7

.~

=

, y - ._ _ _

7 A..