05000293/LER-1980-071-03, /03L-0:on 800914,A Train of Standby Gas Treatment Sys Declared Inoperable as Main Stack Radiation Levels Had Increased.Caused by Sys Trip.Belts & Bearings Replaced,Fan Lubricated & Returned to Svc

/03L-0:on 800914,A Train of Standby Gas Treatment Sys Declared Inoperable as Main Stack Radiation Levels Had Increased.Caused by Sys Trip.Belts & Bearings Replaced,Fan Lubricated & Returned to Svc

ML19338F499
Person / Time
Site:	Pilgrim
Issue date:	10/14/1980
From:	Mcloughlin M BOSTON EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19338F497	List: 05000293/LER-1980-071, Forwards LER 80-071/03L-0 05000293/LER-1980-071-03, /03L-0:on 800914,A Train of Standby Gas Treatment Sys Declared Inoperable as Main Stack Radiation Levels Had Increased.Caused by Sys Trip.Belts & Bearings Replaced,Fan Lubricated & Returned to Svc
References
LER-80-071-03L, LER-80-71-3L, NUDOCS 8010200431
Download: ML19338F499 (1)

LER-1980-071, /03L-0:on 800914,A Train of Standby Gas Treatment Sys Declared Inoperable as Main Stack Radiation Levels Had Increased.Caused by Sys Trip.Belts & Bearings Replaced,Fan Lubricated & Returned to Svc

Event date:
Report date:
2931980071R03 - NRC Website

text

-

LICENSEE EVENT REPORT g

CONTROL BLOCK: l

- l l

l l

l lh (PLEASE PRINT C3 TYPE ALL REIUl;E3 INFCRMATl!N) 1 8

l0 l 1 l lM l A'lP lP l Sl 1l@l 0 l 0 l - l 0 l 0 l 0 l 0 i0 l-l 0l 0 l@l 4_ l 1 l 1 l 1 l 1 l@l l

l@

7 8 9 UCENSEE CCCE I4 15 UCENSE NUMSER 25 26 UCENSE TYPE JO SF CAT 58 CON'T 10l11 lL l@l 0l 5 l 0 l - l 0 l 2 l 9 l 3 @l 0l 9l 1l 4l 8 l 0 l@l l l 0 l 1 l 4 l 8 l 0 l@

sou i

8 60 81 OOCKET NUM8ER 68 69 EVENT OATE 74 75 REPORT DATE 80 EVENT DESCRIPTICN AND PROBAdLE CONSECUENCES h

10 ( 2 l l On September 14, 1980 at approximately 0815 hours0.00943 days <br />0.226 hours <br />0.00135 weeks <br />3.101075e-4 months <br /> the 'A' train of the SBGT System l

g was declared inoperable.

,,o,3, g Operating personnel while investigating the cause of an observed increase in main

,g,,,

stack radiation level discovered that the ' A' train of the SBGT System had tripped.

y

,,,,jg The 'B' train of the SBGT System wac immediately tested as required by Technical Speci7 gg fication Section 3.7.B.1.c.

Following naintenance the SBGT System ' A' train was suc g

. gg g cessfully tested and returned to service at appro:-imately 1655 hrs. on Sept. 17, 1980.;

80 7

8 9

" 'E sci [E To"OE suTSO$E CouPoNENT CODE SUB C

S E

10l91 l Sl Cl@ W@ lB l@ l Bl Ll 0 l Wl E l R l@ ]@ ]@

^

7 8

9 10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE HEPORT R EVISION L

EVENT YEAR REPORT NO.

COCE TYPE 40.

h a'ER/Ro 18l0l l-l l 01 71.1l l/l 1013 l lLl l-l l 0l yuu"By

,21 22 23 24 26 27 28 29 30 31 32 kN AC Q

'oP T

ME HOURS

$8 1 PO 8.

SU L MA UA RER

'l A l@l Z l@

lZl@

l Z l@

l Ol 0l 0l 0l lNl@

l N l@

l A l@

lF l 0l 3l 0l@

33 34 35 06 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS li l0 l l Maintenance replaced belts and bearings on the 'A' fan, lubricated the fan and i

gl ' returned it to service.

I I

LL.LI.J ~ l i a i I

I LUd!l 80 1

7 8 9 STA

% POWER OTHER STATUS CIS O Y

DISCOVERY DESCRIPTION N.A.

l W @l Operational Event l

I115l d @ l1l0l0l@l A TlVITY CC TENT J ELEASED OFRELEASE-AMOUNT OF ACTIVITY LOCATION OF ' RELEASE N.A.

l l

N.A.

l lt!' { @ W @l SONNE $ ExPosuRas -

PER DESCmPTION @

NuuSER TYPE l 1 l 7 l l0 l 0 l 0l@l Zl@l N.A.

l PERSONNEL iNau' dies DEsCm* TION @

suuSER

.I1 Ia l l0 l0 l 0l@l N.A.

l 7

8 9 11 12 80 LOSS OF OR DAMAGE TO FACILITY TYPE OESCRiPTION Q y@l l

N.A.

7 8 9.

10 80

' PUBLICITY C

NRC USE ONLY 12 l o l W@, l 8 0'10200 @ l issuto OEsCmPTioN U N.A.

l l l l l l l l l l l l l l :;

7.

.8 9

10 f,8 69 80 3 M

00