View source for 05000368/LER-1980-022-03, /03L-0:on 800424,immediately Following Plant Trip, Emergency Feedwater Pump Turbine 2K3 for Pump 2P7A Tripped on Overspeed.Caused by Low Steam Generator Level.Root Cause Is Being Investigated.Water Drained from Turbine Casin

{{Adams
| number = ML19316A754
| issue date = 05/20/1980
| title = /03L-0:on 800424,immediately Following Plant Trip, Emergency Feedwater Pump Turbine 2K3 for Pump 2P7A Tripped on Overspeed.Caused by Low Steam Generator Level.Root Cause Is Being Investigated.Water Drained from Turbine Casing
| author name = Shively C
| author affiliation = ARKANSAS POWER &amp; LIGHT CO.
| addressee name = 
| addressee affiliation = NRC OFFICE OF INSPECTION &amp; ENFORCEMENT (IE REGION IV)
| docket = 05000368
| license number = 
| contact person = 
| document report number = LER-80-022-03L, LER-80-22-3L, NUDOCS 8005270459
| package number = ML19316A753
| document type = LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT
| page count = 1
}}
{{LER
| Title = /03L-0:on 800424,immediately Following Plant Trip, Emergency Feedwater Pump Turbine 2K3 for Pump 2P7A Tripped on Overspeed.Caused by Low Steam Generator Level.Root Cause Is Being Investigated.Water Drained from Turbine Casing
| Plant = 
| Reporting criterion = 
| Power level = 
| Mode = 
| Docket = 05000368
| LER year = 1980
| LER number = 22
| LER revision = 3
| Event date = 
| Report date = 
| ENS = 
| abstract = 
}}

=text=
{{#Wiki_filter:-_
tO o
NRC PORM 364 U. S. NUCLE AR REGULATORY COMMA $$lON t7 in LICENSEE EVENT REPORT EXHIBIT A CONTROL BLOCK: l l l l l l lh (PLE ASE PRINT OR TYPE ALL REOUtRED INFORMATIONI i
e l Aj R l A l Nj 0 l 2lgl60l0 l-j0 l0l 0l Oj0l-l0l0 l g l1 l1l1 l1lgl l lg o i 9
LectNSEE CoDt s.
1 lac 4=st ~Uwet h 25 26 ts(t N>t ev,6 Jo bl C AT to 1
a CON'T f.
lc',",U IL l@l0 l 5 p l0 l 01316 l 8)@l0 14 l 21418 I Ol@l 015 l 21018 I Ol@
60 61 ooCKET Nywegn 68 69 EVENT DATE le 7%
HF,oHYDait 80 EVENT OESCRIPTION AND PROBABLE CONSEQUENCES h o 2 l Inunediately following a plant trip, the Emergency Feedwater Pump turbine i fBTr1 i (2K3) for pump 2P7A tripped on overspeed upon receipt of ESFAS due to lowi I steam generator level.
The electric driven EFW pump, 2P7B, and associated o.
iois,i valves were operable and supplied sufficient flow for the transient i
o. i response.
The overspeed trip was reset and the pump was successfully i
istarted three times then declared operable. This occurrence is similar i
o,
i o n i i to 50-368/79-055, 79-072, 79-031 & 79-104.
Reportable per T.S. 6.9.1.96.i
'is"
'"e' s&^&
s'?:;'s.
,=rio, o.,0~ ~1 couc I W l Bl@ LB_J@ LA_J@ l T l0 l R I Bli ! N I@ LZ_J@ Lzj @
o,
, v i ~,.[..
l'.?Y/Ji'[
9d" k?',"
u.o D
@ ?&,jg 13 l0 l L-J l 01 212 i Ld 10 I 3 i LL)
_u n
n u
u o
n u _
L,--J LJ u
TAKiN ACT o
,LA 7 MET MOUR$
$3 7 Foa M
su t w A Nus aC TUR[p
[ XJ@t x_J@ LZ_J@
Lzj@
10 I0I 01 0 L.i @
L.,Y_j@ [_A.j@ lTl114l7l@
NJ u
a as a
v 2
CAUSE OESCR.PTION AND CORRECflVE ACTIONS h li io t 1 The root cause of the occurrence is beina investicated.
An interim i
w I corrective action has been to manually start the EFW pump once every
, 2 1 4 hours.
Successful starts have been completed with the exception of i
m Ion 4/26/80 and 4/27/80. Water was drained from the turbine casing and i
Lsteam supply lines followed by successful starts prior to declaring it i a i
'd".'Ws' ov i.sr.1vs @
"!d"o??,f,'
o,scov.., o,3co,,,,o~ h vo..
E LpJ@ 101010 l@l NA I lA_J@l NA l
ca.,u~,
a
. ou~r 0,.cm.n @ l toc.,,o,,o,,,,a.,,.@
.cu.s o o,
.s.
LZ_J @ IZ__J@l NA l
NA i c
'...so.~.~'1 n os ','.aonc...r.o~ @
a a
=
n,.
10101 Ol@LZJ@l NA i i l
' ',wso ~d',~m',ln na onca.,vio~@
uu.ra l 010l0 l@l NA i a n
n
'ii'5 ' " "s'c"','/o'? ''''"" @
@ [lj@l NA l
7 8 9 10 of me, Tion NRC USC ONLY 8.INsut61 NA 1 i ;;;;gi;;;;,l
'o u
.3,
,o Naut OP PREPARER Chris N. Shively
%UMGM
,,,y, 8006270 Y
}}

{{LER-Nav}}