05000324/LER-1980-089-03, /03L-0:on 801120,emergency Recirculation Fan 18-14-3450 Would Not Start During Control Bldg Emergency Filters Ventilation Sys Functional Test.Caused by Fan Motor Thermal Overloads Tripping.Thermal Overloads Reset

/03L-0:on 801120,emergency Recirculation Fan 18-14-3450 Would Not Start During Control Bldg Emergency Filters Ventilation Sys Functional Test.Caused by Fan Motor Thermal Overloads Tripping.Thermal Overloads Reset

ML19345E241
Person / Time
Site:	Brunswick
Issue date:	12/18/1980
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19345E239	List: 05000324/LER-1980-089, Forwards LER 80-089/03L-0 05000324/LER-1980-089-03, /03L-0:on 801120,emergency Recirculation Fan 18-14-3450 Would Not Start During Control Bldg Emergency Filters Ventilation Sys Functional Test.Caused by Fan Motor Thermal Overloads Tripping.Thermal Overloads Reset
References
LER-80-089-03L-01, LER-80-89-3L-1, NUDOCS 8012230505
Download: ML19345E241 (2)

LER-1980-089, /03L-0:on 801120,emergency Recirculation Fan 18-14-3450 Would Not Start During Control Bldg Emergency Filters Ventilation Sys Functional Test.Caused by Fan Motor Thermal Overloads Tripping.Thermal Overloads Reset

Event date:
Report date:
3241980089R03 - NRC Website

text

...

(7-778 LICENSEE EVENT REPORT

/

CONTROL BLOCK: I l

1 1

I I Ih (PLEASE PRINT OR TYTE ALL EEQUIRED INFORMATION) l 6

lo lil I NI Cl BI ElP l 2 l@l0 l0 }- l 0l 0l 0l 0l 0l -l 0l 0l@l4 h l 1l 1l1 l@l l

l@

7 8 9 UCENSEE COGE 14 S

LICENSE % vet A 23

.'6 uCEN>E TvPE J0 57 car ad CON'T lolil 3 $ IL l@ l 01 510 l-l0 13 12 l4 l@l 11 1121 Ol 8l Ol@l 1121 Il 818 l O l@

7 8

60 61 OGCnET % VSER 66 69 EVENT D ATE Fa 75 REPQRT DATE l' 0 EVENT OESCRIPTION AND PROB A8LE CONSEQUENCES h l o i 2 I l During the perforcance of Control Building Emergency Filters ventilation system l

Io Iai i functional test, PT 21.1, 2B emergency recirculation fan, Model No. 18-14-3450, would l 10141 l not start. 2B Control Building emergency ventilation system was then declared inop-I

. l o I s i ! erable as required by Technical Specifications. This event did not af f ect the health l t o_Is l l or saf ety of the public.

I l o l 71 l l

to1ol l Technical Specification 3.7.2, 6.9.1.9b l

80 7

8 9 DE CCOE SUSC E COMPONENT CODE SL SCOQ'E S

E laI91 i SIG lh I XI@ l Zlh I C lK l T I B l R l K lh I A l@ ]h 7

8 9

to 18 12 12 se is 20 SEQUENTIAL OCCURRENCE REPORT REVISION LER no EVENTYEAR R EPORT NO.

CODE TYPE NQ.

O an g 19101 l-l 1018191 1/l 10 13 I I tl I-I l 01 su 21 22 23 24 26 27 28 23 30 31 32 K N AC ON ON PLANT t

MOURS 22 S8 i F

R' S.

SUP*LI E VAN FACTLRER I XI@l zl@

IZ l@

I Z I@

1010101 I

lYl@

lYl@

I^l@ IJill.217lh 33 J4 03 36 31 40 41 42 42 44 47 CAUSE OESCRIPTION AND CORRECTIVE ACTIONS (2),

IiioIl An i= mediate investigation bv plant oce;ptions and maintenance personnel revealed the l L'.L'_J l f an'=otor cover sueelv breaker ther=al Carloads had tripeed caustne a loss of cover i

. ii i;i l to the fan motor. The ther=al overloads were then reset, the fan operated satisfac- [

gig 3l l torily, and the PT was successfully completed.

l t

I L' L*_1 I 7

8 9 80 ST

% POWER oTHER STATUS ISCe RY DISCOVERY DESCRIPTIC*4

_ fi'III [JJ@ l Ol615 l@l NAl [Bj@l Periodic Test l

A TIVITY CO TENT AMOUNT OF ACTIVITY LOCAT80N OF RELEASE RELEASE @D OP mELE ASElZlgl NAl l

NA l

i 6 7

8 9 10 ft 44 85 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRi' TION 39 FTIT1 101010 l@LZ_j@l NA l

1 2

80 PERso~NE L INm'RtEs oEsCR,PfioN@

~uv8ER 1010101@l NA l

i a 7

8 9 11 12 80 l

LOS5 0s OR DavaGE TO FACILITY TveE ogscR Pfiog NA l

LZj@l i 9 7

8 9 to PUBLICliv NRC USE ONLY l

lIllllltI!lIik

1. 5$UED DESCRs# TION so.;

68 s,

A. C. Tolli. son, Jr.

919-457-9521 NE:

NAME OF PREPARER m esse -

50.*7

k J

LER ATT5C10!ENT - RO # 2-80-89 Facility: BSEP Unit No.

2 Event Date: 11-20-80 Following a thorough investigation by plant operations and =aintenance personnel, which included bridge and meggar checks of the fan motor, run current checks, and thermal overload checks, it was concluded the fan was fully operable. The tripped power supply breaker thermal overloads were then reset and the fan was successfully started and the PT completed with no further problems encountered.

As no cause was determined for this event and since this fan has a history of reliable operation, this is considered an isolated event. This fan will be closely observed for problems during the periodic test program.

f e'

s l

I I

i