PNO-II-80-161, on 801119,w/reactor at 50% power,2-inch Steam Generator Recirculation Pump Line Sheared at Connection to Steam Generator B Feed Regulator Valve Bypass Line,After Earlier Reactor Trip
| ML17340A769 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 11/19/1980 |
| From: | Martin R, Price D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| References | |
| PNO-II-80-161, NUDOCS 8102280226 | |
| Download: ML17340A769 (2) | |
HKLIHDQRY SOTIEZCATIQH ENCLOSURE Nav~r 2~9+0 PP~ZKDQLRV ROTZFICATXON'OF OR GKGSQAL OCCJRBZHCE
" Papal-80-l61 This rcliminarv notification constitutes ZQ v notice of an event af POSSIBLE ff'.t or public interest siniEicance.
The infcri"ation yresentea zs as initially
= rccoived sit.haut verification or evalu"tion and -'s basicallv all that is hewn bv TK sta f as af this date 7'AC&~~
H.orida Power and Light Company Tu"rey Point 3 Docket Ho. 50"250 Eon stead)
F'larida SOBJBH':i PSZDWATSB SYSiiH PZPB BBBSR
~
ss At 1:30 p.m.) a 2-inch steam generator recirculation pump line sheared at its connectio:.
tc th 8 s~ generator feed regulator valve
{FPV) bypass line with the reactor at 5'~;:
power.
A reacto trip from 100>o power had occurred earlier, at %0:l6 a.m., following
=.
turbin trip on low level in steam generator A. Initial investigation af the earlier =:
a"t"iouted the problem to a HP control failure caused by a loose wire in the valve's controller.
Mao wire was tightened anc thc plan restarted.
A ~zozimately 50~ power, water leve1 oscillations were observed in all 3 steam generators.
Bnc FRVs were shifted to manu=i con-rol and a second feed pump started.
- s'ezz gcncrator oscillations increased and a rumbling sound was heard in the control o.
Investigalion revealed water and steam D.ca~ from.
he vicinity of a nortion of the az:
fcedwater pipe which is located outside a
con'~inment.
The operators..initiated a re""
si.~edge but th reactor tri@ecl autor" ically due to
- Low stcam ~energy.t.or level.
Auxiliary fee@uter pumps wer= started and the s=eam generator level iestnred.
Further
=nvestigation revealed the leak t.o be fran the break of the 2 inch recirculation pump inc,.
This break was isolated..Ho radioac:ve contaminate.an or persouneg injury'c~~cd
~
licensee is investigating the event
'-e -ei oscillations and the pipe break.
=h tim of the event and is continuing to determine the cause of the st.earn generator Ti resid nt inspector was in the control zoo~
La mon tor licensee act.ivim~s hfcdia interest m"v occur.
The licensee is considering a news relezse.
Thc EC does no plan to issue a news release.
The State of Florida has been informed.
A
~
ss Re-ian II (At.lant') receivecl notifica"ion of this occurrence by telephone from the resiflent inspector at. 2:45 on November 19, 1980.
J - Ch>lk)
SvCY C. Eammerer, CA
{ r Distr'bution)
XB:XOOS~~~ (W:Bq Diss.)
P.
B}dg.
E. R. Qentan, lsd R.
H. Voila:er, "P3'
. S~oeder, V~~
D. F. Ross, h."Z L. Rx enhr t) RP, S
E. nanauer) hYR Transmitted:
tSBB V. J. Dirchs)
ZDO C. hichelson, A=OD
'. Foucha"d PA
- h. 1lalfer)
GAPA
F.
G. Ryan)
SP Z. Shapar, ELD 1andow
{6 ~/page-J. J. Cux~gs)
QIA HAEL R. Ninogne, SD IE:XO05 D>ocument~t.
Br. g'or PD";
Villste Je Ce Ga~t.~ s ss.>s)S T. E. Hmley, RES.
PRELIMlHARV E:0~
ATION Appliable President Site P siessl Offices Ccntac:
D. S.
P ice, PZI 242-5569; R. D. Ear ir, Rll'42-5534 llist.rihution:
Transmitted H. St Chairman Ahearnc C~sioner nendrie S.
Comissione Gilinsky Co~sioner Bradford C.
ACES Fa