05000296/LER-1980-040-03, /03L-1:on 801010,3EB Diesel Generator Lube Oil Circulating Pump Discovered Inoperable.Caused by Locked Double Row Ball Bearing.Lube Oil Circulating Pump Replaced: Difference between revisions

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{{Adams
#REDIRECT [[05000296/LER-1980-040-03, /03L-0:on 801010,diesel Generator 3EB Lube Oil Circulating Pump Found Inoperable.Caused by Locking of double-row Ball Bearing.Lube Oil Circulating Pump Replaced]]
| number = ML19341A693
| issue date = 01/21/1981
| title = /03L-1:on 801010,3EB Diesel Generator Lube Oil Circulating Pump Discovered Inoperable.Caused by Locked Double Row Ball Bearing.Lube Oil Circulating Pump Replaced
| author name =
| author affiliation = TENNESSEE VALLEY AUTHORITY
| addressee name =
| addressee affiliation = NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
| docket = 05000296
| license number =
| contact person =
| document report number = LER-80-040-03L, LER-80-40-3L, NUDOCS 8101270711
| package number = ML19341A688
| document type = LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT
| page count = 2
}}
{{LER
| Title = /03L-1:on 801010,3EB Diesel Generator Lube Oil Circulating Pump Discovered Inoperable.Caused by Locked Double Row Ball Bearing.Lube Oil Circulating Pump Replaced
| Plant =
| Reporting criterion =
| Power level =
| Mode =
| Docket = 05000296
| LER year = 1980
| LER number = 40
| LER revision = 3
| Event date =
| Report date =
| ENS =
| abstract =
}}
 
=text=
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UPDATE REPORT - PREFIOUS REPt,dT DATE 11/7/80 * "'"* "E#'**"' '"~'""~~
7 - ?77 LICENSEE EVENT REPORT Q
CONTROL BLOCK: l l
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l l <h (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATIONI i
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S 60 61 DOCKET NUMSER 68 69 EVENT DATE 24 75 REPORT DATE 90 EVENT DESCntPTION AND PROBA8LE CONSEQUENCES h l o i 2 I I With unit 3 at 99 percent steady state power. it was discovered that the "3EB" io Iai I diesel generator lube oil circulating pump was inoperable. There was no danner
[@ l to the health or safety of the public, n'o significant resultina chain of events. and.
I goisl l no previous similar occurrence. See technical specification 3.9.B.2.
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3 10 11 12 13 19 19 20 SEcutNTIAL OCCURRENCE REPORT REVISION
_ EVENT YE AR REPORT No.
CODE TYPE No.
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lV l1 12 15 33 34 JS J6 37 40 el 42 4J 44 CAUSE DE3CRIPTION ANDCORRECTIVE ACTIONS h I i i o l l The double-row ball bearing locked. The lube oil circulatinn Dumo was reolaced.
IiiiI i There is no recurrence control required due to low failure rate.
The evene uns m l attributed to normal end-of-life. Viking pumps, 5 gpm. Md1 CV503A.
L2 L1J l [HD I i
a s TA s
% power oTHER STATUS as Y
DISCOVERY D* $CRIPTioN NA l
J @l Operator observed l t I s'l J@ l 0 l 9 l 9 l@l
'JnynY % TENT AMOUNT op 4CnviTY @ l LoCArioN op RELEASE @
RELEAsto@op Rutt wW 231 l
NA Lz_J NA i a PERSONNEL ExposuEPs otscairnoN @
NcMREn tvPE l Ol 0 l 0 l@[Z_j@l NA i 7 PER$oNNEL INJu IES NuueEm OESCRIPTioN L'_l.a I Lo_J. o i o 18l NA j
se F
W 9 11 12 LOSS op Cn OWACP To PACILITY h tvPC CE SCPtP floN v
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4 3 10 Lua.1 LN,,f@l EtCHiPTeoN isauf NA l
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68 49 7
4 3 to NAME OF PREPARER RHOP'E:
 
o,: :-
Tennessee Valley Authority Fora BF-17 Browns Ferry Nuclear Plant BF 15.2 1/10/79 LER SUPPLE.7NTAL INFORMATION BFRO 296 /
80040 Technical Specification Involved 3.9.B.2 Reported Under Technical Specif'2ation
: 6. 7. 2.b( 2)
Date of Occurrence 10 10/80 Time of Occurrence 1:00 a.m. Unit - 3 Identification and Description of Occurrence:
With unit in. steady state operation, it was discovered that the "3EB" diesel generator lube oil circulating pump was inoperable.
:- Conditions Trior to Occurrence:
Unit 1 - 98% steady state power.
Unit 2 - Scheduled refueling outage.
Unit 3 - 99%. steady state power,
Action specified in the Tech 2ical Specification Surveillance Requirements met due to.noperable equipment. Describe.
Required Tech. Spec. redundant systems were tasted..
Apparent Cause of Occurrence:
Bearings in the oil circulating pump locked due to norma 2 end-of-life.
t Analysis of Occurrence:
There was no danger,to the health or safety of the public, no damage,to plant or equipment, no release of activity, and no significant resulting
~
chain of events.
 
==Corrective Action==
The oil circulatin' pump was replaced. No future corrective action is required s
due to low failure rate.
Failure Data:
NA l
l
* Retention:
eriod - Lifetime; Responsibility - Administrative Supervisor l
l
* Revision:
0
=-
}}
 
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Latest revision as of 14:52, 26 May 2025