05000327/LER-1981-046-03, /03L-0:on 810416,waste Gas hydrogen-oxygen Analyzer Was Declared Inoperable When Unit Failed to Pass Monthly Functional Test.Caused by Water,Which Had Collected in Analyzer Vent Header,Draining Back Into Analyzer

From kanterella
Revision as of 05:09, 24 December 2024 by StriderTol (talk | contribs) (StriderTol Bot insert)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search
/03L-0:on 810416,waste Gas hydrogen-oxygen Analyzer Was Declared Inoperable When Unit Failed to Pass Monthly Functional Test.Caused by Water,Which Had Collected in Analyzer Vent Header,Draining Back Into Analyzer
ML19347F489
Person / Time
Site: Sequoyah Tennessee Valley Authority icon.png
Issue date: 05/13/1981
From: Harding M, Wilkey A
TENNESSEE VALLEY AUTHORITY
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19347F487 List:
References
LER-81-046-03L, LER-81-46-3L, NUDOCS 8105190419
Download: ML19347F489 (1)


LER-1981-046, /03L-0:on 810416,waste Gas hydrogen-oxygen Analyzer Was Declared Inoperable When Unit Failed to Pass Monthly Functional Test.Caused by Water,Which Had Collected in Analyzer Vent Header,Draining Back Into Analyzer
Event date:
Report date:
3271981046R03 - NRC Website

text

-

4 l

(v,t.m. s i

1 LICENSEE EVENT REPORT I,

, g,

~

.h CONTROL BLOCK: l

- l l

l l

l l

(PtE ASE PRINT OR TYPE AtL REO IRED INFORMATIONI g lT ln lS lN lP'l1 !@!0lO!-l0l0l0l0l0l-l0l0 l@l4l1l1l1l1l@l_l l@

f a 9 LICtN$gg ggot le It LICtN5 NUwetR 25 24 LtCthst tvP4 40 67 Cat 69 COTT l ale l

,l,%,' Ll@l0 15 _ l0 10 l 0 ! 3 l 2 l 7 @l 01411 l6 l8 l1 @l0 I s l1 I4 lW@

I a

to 68 DOCaL E T Nues t M r.A 69 EVENT DAgg to. 76 M6POAT oat t se g

CVENT DESCntPTION ANO PnOO AOLE CONSEQUENCES h g l With unit in Mode I at 1555 CST on 4/16/81. the wnRte EaA hydrogen-OXVren ann 1vrpr van l l777] l declared inoperable 'when it failed to pass its monthly fun'etional test. The olant' I

j g i entered action statement 43 of LCO 3.3.3.10.

The hydrogen analyzer wds returned to l

lcis1 I se gice at 2100 CST; therefore, unit shutdown was not required. There was no effect l

l l on puM

,iealt'h or safety. One previous occurrence: SORO-50-32i/81028 l

o s l

lo l 71 I l

I 10181 1 I

so l

1 es SYsith CAust CAust Coup.

Vatyr i

COD CODE' sueco0E Cou'oNINT CODE sugCODE sueCoot J o T'el i Ml C l@ y@ l Elh lI l Nl Sl Tl Rl Ulh W@ g. h io i,

is 2

OCCunRENCE -

ntrom?

AtVISION stout NTI AL l

LE tytNTYEAR REPonT No,

. CODE TYPt 88 0.

O,aj'R/AO l, 8 l I l l-l l0l4l6l

{f_j l0"l3l

[,,Q

[-j

' [g,,J oy n

n u

n 2.

u u

ta i A T Of O PL 4 N T Mtf HOURS s0 IT FOn 8.

sWPPL MANU ACTVnta W@lF l@

[Z_j@

W@

l 0 lo l0 l0 l W@

W@

lC I7 l6 IS l 3J 34 JS 34 Ji 40 48 42 43 44 47 CAUSE OESCnlPTION AND CORRECTIVE ACTIONS h,

~

in the nn n 1' vre r ' ai vene h,nA.c I

g lThe analyzer failed because water. which had colleered y Idrained back into the analyzer. Affected lines were purged and dried. W e hydronen g l analyzer was recalibrated. The oxygen cell was replaced and returned to service on

~

l777] l4/18/81. Design modifications to facilitate draining the lines hdve been subfnitted.

t g [ A trap and check valve in the vent line is also planned by August 1981.

s s i so 1

$tsNtN oiscoveny ogsCmptioN h

  1. *IAs ' 0, srowin oturn status NA l

(,B,,J@l Surveillance testine I

f l

@ W @ l1l0l0l@l 80

  • 8:iviry Co'* r t N T LOCAf ton or sittf ast @

l l i Is l LZ_J @ L.Z_J@l AuoVNT or ACTivify @ J A

attiatto or nattait NA l

NA l

censo~~Et tiieosuAu otsCninviou @

l wounen ever l

{'I7110l0lOj@[Zjhl l

NA ec aso~~t'L.u,u'n'ils otsCRiptiowh muust a l

l l'191lOl01Ol@l NA 80 l

s 4 9 Et 12 toss 08 ort cauaGE to FACILITY TV't Ot sCR18 ?loas l

l l j 9 l (,Zj@l NA io en OtsCAPYlON@

G L.dt81 11111111I'1I1 t$sy i

ui I

s e e io se as Phone (615) 842-8317 N'ame of Preparer M. R. Hardine/A.

M_

U411m,

91 o n 19 0 % 8