05000334/LER-1981-053-03, /03L-0:on 810522,containment Vacuum Pump CV-P-1A Tripped on Thermal Overload.Caused by Discharge Flow Path Isolation While Using Radcon Procedure.Caution Statement Added to Procedure

/03L-0:on 810522,containment Vacuum Pump CV-P-1A Tripped on Thermal Overload.Caused by Discharge Flow Path Isolation While Using Radcon Procedure.Caution Statement Added to Procedure

ML20005A530
Person / Time
Site:	Beaver Valley
Issue date:	06/22/1981
From:	Lacey W DUQUESNE LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20005A526	List: 05000334/LER-1981-053, Forwards LER 81-053/03L-0 05000334/LER-1981-053-03, /03L-0:on 810522,containment Vacuum Pump CV-P-1A Tripped on Thermal Overload.Caused by Discharge Flow Path Isolation While Using Radcon Procedure.Caution Statement Added to Procedure
References
LER-81-053-03L, LER-81-53-3L, NUDOCS 8106300428
Download: ML20005A530 (2)

LER-1981-053, /03L-0:on 810522,containment Vacuum Pump CV-P-1A Tripped on Thermal Overload.Caused by Discharge Flow Path Isolation While Using Radcon Procedure.Caution Statement Added to Procedure

Event date:
Report date:
3341981053R03 - NRC Website

text

u. s.csRmh Nac poned aos (7 771 LICENSEE EVENT REPORT

.h (PLEASE PRINT 03 TYPE ALL REQUIRED INFOCMATl!N) l CONTROL BLOCX: l I

I I

I I

i 8 IP ! A I 3 IV 1511 l@l010 l-1010101010 l-1010 l@l4111111 Il l@l I

l@

4 9 UCENa&ECGCE le IS UCENsE NWSSR 2$

26 UCENSE TYPE 40 Si CAT 54 "OU LL_J@l o i s'1010101313141@l 01 st 2121 sit !@lo 1612121 CON'T L?_LJ 40 68 COCK ET NuuttR 64 63 EVENT OATE 14 73 REPORT QATE 60 s

7 4

EVENT DESCR.PTION AND PROBA8LE CONSEQUENCES O'o On 5/22/81. O)ntainment Vacuum Pump [CV-P-1A] discharge flow path was isolated l

l o 12, l while investigating for a possible problem in the test rig being used by Radcon to g gl obtain a containment air sample. Following this, at 1255 hours0.0145 days <br />0.349 hours <br />0.00208 weeks <br />4.775275e-4 months <br /> [CV-P-1A] tripped l

~

gl on'a thermal overload. Continued power operation was permitted by Technical l

,o,,,l gl Specification 3.6.5.2.

There were no safety implications since the remaining l

lo;y; [ vacuun pump was operable at this time. At 1515 hours0.0175 days <br />0.421 hours <br />0.0025 weeks <br />5.764575e-4 months <br />, (C'. -P-1A] was restarted l

l ioe,j ; after resetting the thermal overload.

WO r

s9 susC[o'E sES'

1. S[2E

1. [c"dE susCo$e CouroNEur Coos I Sl Al@ W@ l Zl@ l ZI ZI Zl Zl Zl Zl@ l Zl@ l Zl@

lol91 r

4 9

iG tt 12 f3 13 is 20 sfoVENTiAt.

OCCURRENCE, REPORT REVISION ggjpg (VENfvEAR REPORT No.

Co0E TYPE No.

O s(f;g i 811 I l-1 1013131

.Lc]

I01 31 iLI L-J lo I a

28 22 2J 24 26 27 28 29 30 38 22 KN AC O

'C P

T WE MOURs s8 i FoR S.

sVP, E MA UFAC RER U@[CJ@

lZl@

[Z_j@

l 0 l O l 0 l 01 l Yl@ J@

W@

l2l9l9[9l@

JJ J4 M

36 31 40 44 42 43 44 4;

CAUSE DESCRIPTION ANDCORRECTIVE ACTIONS lttoll The Radeon orocedure in use did not specify a recuired valve lineup for trouble-l LLL'.J l shontine the test rie. This led to the inndvertent isolation of the nump afscharne!

Ii [21 l' uhen an alternate flow path did not exist. A caution statement will be added to i

Ii)3i I the pracedure insurine that a flew path e.dsts at all times when either vacuum I

l I i I 41 1 numn is in enerarien.

80 7

d 9

%#oWER oTH(R STATUS s

RV DISCOVERY DESCRIPTION

's Ah l1l5l W @ l0I9l0l@l N/A l

l A l@l Personnel observations l

toCArioN or nstEAse h AuousTor ACTivirv @ I ACTIVITY CC TENT N/A I

N/A I

Retsasto ca RetrAst D la l L:_1 @ LZ.J@as l

,.RsoNNan,cs oisCR., Tion @

l wo. R Tv,.

8 1010101@lZl@l N/A

, Rso~N,'t iNJ!,es usCRiefioNh I

NwetR li l 41 l o l O l o l@l N/A i

TV E DEsc P?

l L' LJ l ZJ@l N/A 4 9 10 NRC USE ONLY Pu8uCITY 45 A

l l l l l l l l l l l l l. l j lisuf D otsCRIP? TON 68 69

30.,

7 8 9 to 412-643-8525 g

U* S' bdU0Y PHONE:

NAA EPARER.

810680 odtE OF P

i_.. 9, -

g Attachment To LER 81-053/03L 1

Beaver Valley Power Station-Duquesne Light Company.

Docket No. 50-334 No further information is:available or needed to satisfy the reporting-requirement.

~

9 9

O e

9 0

a s.

6-