ML20027B552

LER 82-064/03L-0:on 820809,vent Flow Monitor Indicated Zero W/Vent in Operation During Process of Returning to Mode 1. Caused by Out of Calibr Differential Pressure Transmitter Due to Instrument Drift.Transmitter Recalibr

ML20027B552
Person / Time
Site:	McGuire
Issue date:	09/08/1982
From:	Nardoci P DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20027B543	List: ML20027B542 ML20027B552
References
LER-82-064-03L, LER-82-64-3L, NUDOCS 8209210237
Download: ML20027B552 (1)

Text

W N , C PsRM 364 U S. NUCLE A R R EGu t.ATOR Y COMMISSeOP. APPROVED BY OMS o a- " LICENSEE EVENT REPORT E2:ilEE4 so-e (PLEASE PRINT OR TYPE ALL REQUIRED INFoRMATioN)

CONTROL BLOCK: l j l 1

! l l@

l alt l. l. NI C F

l M l G l Sll l@l 0101 -l Ol 64 CENSE E COD E ,. l.

0 l 0! O! O! - ! O! Ol@l 4 l I l III ! 1 l@!

64C IN SE NW M S E R 15 .. LIC E N.E T Y pE ,.

l

., C A T 5.

l@

CON

• lc;il  ;'2 "; l L '@l O! 5 l 0 I 0l 0l 3 I 6 I 9!@l 0msrl 810

., c o m e . ,. a . ,, wz l 9! 8!2!@lO!9!OI8!Bl?l@

. Rx uTE ..

EVENT DESCRIPTION AND PRGSABLE CONSEQUENCES h j o !2 l l While in mode 3 in the process of returning to mode 1. routine surveillance disk 10'3 covered that the unit vent flow monitor for lini r , 0 un n inaicnring anoroximatel'v T T ' zero while the unit vent was in operation. The flow monitor was decinrod i n n n o'r.-

l a i s l l able per T.S.3.3.3.9 which is reportable per T.S.6.9.1.13(b) . Since inoperabilk ;y lalsll did not affect the quality of the unit vent discharens or the mnnfrnring ennn- !

l 0 I 7 l l city of the Radiation Monfrnring Ryniom (Anen normall y obtained from the moni- !

i ;gi! tor was manually collected per T.S. action statement 36). health and safety of l

' ' the publi,q,gg,re ungf,[pcte k ,, c ,, y , ,_ y ,

6005 CODE SueCODE COMPONENT CODE SUSCODE SVECODE lo!91 l M l C l @ W @ ( E_j @ l I l N ! S lT l R ! If l @ l._.T_j b d. b

. ,, ,, ,. ,, ,. 1

'E V E NT T E A R R E PO RT NO, O TV E NO.

@ 6,"*'A l 812!a tn _] lo I 6I 4l l/l I O ! 3l a

(_LJ  !-!

n

!_0]

n

., u a. n u ,.

==  ::::::, ===~ -.... ~ '::.

. M::::=ER@

[ Ej@l Z !@ l_rJ@ LzJ@ 10 10101@ 01 ::==@'

IN! F::=..[_Ej@ lj @ l x l 91 919 l u

n u n u n u u a n ..

CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h

! 110 } lThe monitor's differential pressure transmitter (Brnnat Tnnernmonen Tnc.. Mnant}

lilijj21DPT 2000) was determined to be out of calibration (low) due to instrument driflt ,

l i 12 l l Instrument drif t has not been a recurrine oroblem. The ventilnrinn nvntoma nna !

lil3jheaste effluent flows were monitored every 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> durinn inoperability. The l l i l e l l transmitter was recalibrated and the monitor declared operable. I r .. a STAT S  % POW E R OTHER S1 ATWs ISCOVERT O.SCOVERY Q ESCR PTION l t j s l l X l @ l 0 l 0l 0 l@l Mode 3 l l B l@l. Routine Surveillance -

l REL SEO RELE E AMOUNT OP ACTIVITT LOC ATION OF R ELE ASE n/^ l l N/A l l i l e l L. ZJ @ L.2JOI

, . i ,, u .. ..

NUMasm YTPE D E S C R IPTION l iI 71 l 010l 0l@W@l N/A l a n ..

NUMBER E S C R IPT IO N l118llOlOlOl@l r .. ,, a N/A n n A n n r3 4 y a 4 'L u c, .,? Dg

.e A ., '"> 9 l

Lot s OF OR C AM AGE TO P ACILl?Y TYPE D E S C R IPTIO N l119!lZl@l N/A .2 l

' NRC uSE ONLY

...u RI,"*'s'EllRiPfiON @

l2!0!11@l N/A l ll!!llllIllll NAME CF PREPARER Phillip B. Nardoci PsoNE: (704) 373-7432