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: u. s. muc.su ascutarcay ecausssion I mac roam:se tr.rn | |||
' t.!CENSEE EVENT RESCRT EXHISIT A centact. stccra l 1 I I I ! i trt.uss mur ca Tvee AL.ascusato imecau4ricus I o, I? I Li cat 713rgioi0-i-1 0r.ew.0;o; -u. 0:0 i to i a0rg;4;1,1;lr i g; r _i_ r g | |||
: u. s. muc.su ascutarcay ecausssion I mac roam:se | |||
tr.rn | |||
' t.!CENSEE EVENT RESCRT EXHISIT A centact. stccra l 1 I I I ! i trt.uss mur ca Tvee AL.ascusato imecau4ricus | |||
I o, I? I Li cat 713rgioi0-i-1 0r.ew.0;o; -u. 0:0 i to i a0rg;4;1,1;lr i g; r _i_ r g | |||
.,-a | .,-a | ||
.. ,. :s ca s.. ~ . . a i , .. . .c u u ::ci C m** | .. ,. :s ca s.. ~ . . a i , .. . .c u u ::ci C m** | ||
2,, "*cy l Lgl 0i St 0 I -iO t 31012 GI 1 I 012 6 I 7 I 9 GI 111 In.o l r7- fa. lo.al@ | 2,, "*cy l Lgl 0i St 0 I -iO t 31012 GI 1 I 012 6 I 7 I 9 GI 111 In.o l r7- fa. lo.al@ | ||
> . . .. :oc..r mu. u .. . r :.n i. | > . . .. :oc..r mu. u .. . r :.n i. | ||
avsNr tscairties Ano sacaAsta censacusNess @ l y,2 lAt 1412 in Mode 1. it was reoorted that the o100 stress at a 3 x 2 reducer on | avsNr tscairties Ano sacaAsta censacusNess @ l y,2 lAt 1412 in Mode 1. it was reoorted that the o100 stress at a 3 x 2 reducer on | ||
. ,,2 ,the outlet of the RCP-1A motor thrust bearing cooler exceeds the FSAR required | . ,,2 ,the outlet of the RCP-1A motor thrust bearing cooler exceeds the FSAR required | ||
,,,, , allowable stress. This created an event reportable under Technical Specifica- 9 tion 6.9.1.3.1. No effect upon the p,lant or general public. This is the , | |||
,,,, , allowable stress. This created an event reportable under Technical Specifica- 9 | |||
tion 6.9.1.3.1. No effect upon the p,lant or general public. This is the , | |||
fifth occurrence of this type reported. Reference LER 79-061/0l!-0, and , | fifth occurrence of this type reported. Reference LER 79-061/0l!-0, and , | ||
,,,, ,LER 79-087/0lT-0, 1 and 2. | ,,,, ,LER 79-087/0lT-0, 1 and 2. | ||
t t3.at I ~ | t t3.at I ~ | ||
-, : 32, :. . . _ , | -, : 32, :. . . _ , | ||
04.QNEN? 04 %3c::3 L.c;;g C8 : C8 %8:08 i: , n iz | 04.QNEN? 04 %3c::3 L.c;;g C8 : C8 %8:08 i: , n iz i as we i A ie ,i s i m pio i R i Tie u,,ys w e | ||
i as we i A ie ,i s i m pio i R i Tie u,,ys w e | |||
.me, | .me, | ||
. .c . . . = = . . ,c2 ...,., . | . .c . . . = = . . ,c2 ...,., . | ||
_ COCg =w.g gg g g. .o IV fseT *tAa .t Cmf % | _ COCg =w.g gg g g. .o IV fseT *tAa .t Cmf % | ||
Line 62: | Line 40: | ||
=. ,...c- | =. ,...c- | ||
-. . .,m. .., .%., | -. . .,m. .., .%., | ||
- . = . . | - . = . . | ||
. .. _ = . ... . , , , ,... | . .. _ = . ... . , , , ,... | ||
i e i a ,u y p e i- :r e ioioio i i x< g ra r g a | |||
i e i a ,u y | |||
p e i- :r e ioioio i i x< g ra r g a | |||
!., 9 @ e. @ | !., 9 @ e. @ | ||
. . e.. @ ., ., | . . e.. @ ., ., | ||
/ | / | ||
Line 79: | Line 49: | ||
,,, g The cause of this event is attr:.cuted to inadequate desizn. Modification , | ,,, g The cause of this event is attr:.cuted to inadequate desizn. Modification , | ||
, , , ,79-10-85 has been initiated to add a restraint to reduce the pipe stress at the , | , , , ,79-10-85 has been initiated to add a restraint to reduce the pipe stress at the , | ||
, reducer. Repairs will be completed during the next plant outage. | , reducer. Repairs will be completed during the next plant outage. | ||
i | i | ||
.ss 1 t | .ss 1 t | ||
Line 89: | Line 57: | ||
NA l Notification from A/E l | NA l Notification from A/E l | ||
,es W @ l017iSi@l *. J. @ l | ,es W @ l017iSi@l *. J. @ l | ||
* as sc | * as sc F 8 , | ||
F 8 , | |||
f3 | f3 | ||
.tL3Asto ca .gggast 12 83 av;u1TCP .CM4tTV LCCafnC4C..tLaass i | .tL3Asto ca .gggast 12 83 av;u1TCP .CM4tTV LCCafnC4C..tLaass i | ||
,i. | ,i. | ||
wg wer i. ,, | wg wer i. ,, | ||
NA | NA i r u P185CM%4L tt8C34s.g3 asynset s 'vre ts '''T'Cao l | ||
i r u P185CM%4L tt8C34s.g3 asynset s 'vre ts '''T'Cao l | |||
a6, I n l 01 q l NA ao 7 3 p to 1: 13 l | a6, I n l 01 q l NA ao 7 3 p to 1: 13 l | ||
8tBSC=946 r%Jhmats NA 1335 - | |||
8tBSC=946 r%Jhmats | y I i6 l 010i Ol@l ,, i: | ||
NA 1335 - | |||
y I | |||
i6 | |||
l 010i Ol@l ,, i: | |||
.C55 Ce C# Sava :3 *13 54Clu f5 5 -s :ssem mCm I | .C55 Ce C# Sava :3 *13 54Clu f5 5 -s :ssem mCm I | ||
NA l , | NA l , | ||
.t. | .t. | ||
e s W@l to sac usa enty so I | e s W@l to sac usa enty so I | ||
a.r.'er''cW CES 8"QM I IIieiitiii ti i | a.r.'er''cW CES 8"QM I IIieiitiii ti i | ||
:,e NA | :,e NA L, N,j3 7@l ,a n se ,a | ||
L, N,j3 7@l ,a n se ,a | |||
.wes - (904) 795_4436 | .wes - (904) 795_4436 | ||
* - J . Cooper, Jr. | * - J . Cooper, Jr. | ||
aavscenotrAarn - | aavscenotrAarn - |
Latest revision as of 09:01, 22 February 2020
ML19256E814 | |
Person / Time | |
---|---|
Site: | Crystal River |
Issue date: | 11/02/1979 |
From: | Cooper J FLORIDA POWER CORP. |
To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
Shared Package | |
ML19256E801 | List: |
References | |
LER-79-087-01T, LER-79-87-1T, NUDOCS 7911150289 | |
Download: ML19256E814 (2) | |
Text
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- u. s. muc.su ascutarcay ecausssion I mac roam:se tr.rn
' t.!CENSEE EVENT RESCRT EXHISIT A centact. stccra l 1 I I I ! i trt.uss mur ca Tvee AL.ascusato imecau4ricus I o, I? I Li cat 713rgioi0-i-1 0r.ew.0;o; -u. 0:0 i to i a0rg;4;1,1;lr i g; r _i_ r g
.,-a
.. ,. :s ca s.. ~ . . a i , .. . .c u u ::ci C m**
2,, "*cy l Lgl 0i St 0 I -iO t 31012 GI 1 I 012 6 I 7 I 9 GI 111 In.o l r7- fa. lo.al@
> . . .. :oc..r mu. u .. . r :.n i.
avsNr tscairties Ano sacaAsta censacusNess @ l y,2 lAt 1412 in Mode 1. it was reoorted that the o100 stress at a 3 x 2 reducer on
. ,,2 ,the outlet of the RCP-1A motor thrust bearing cooler exceeds the FSAR required
,,,, , allowable stress. This created an event reportable under Technical Specifica- 9 tion 6.9.1.3.1. No effect upon the p,lant or general public. This is the ,
fifth occurrence of this type reported. Reference LER 79-061/0l!-0, and ,
,,,, ,LER 79-087/0lT-0, 1 and 2.
t t3.at I ~
-, : 32, :. . . _ ,
04.QNEN? 04 %3c::3 L.c;;g C8 : C8 %8:08 i: , n iz i as we i A ie ,i s i m pio i R i Tie u,,ys w e
.me,
. .c . . . = = . . ,c2 ...,., .
_ COCg =w.g gg g g. .o IV fseT *tAa .t Cmf %
8 t'O'T l ? I Oi l' .--l l0 l9l ?l IOI1 i ( "' I (I l3l
" " " a a 2 :s :r a n aa u ;2
.c.,. ,. . =c ., u.
=. ,...c-
-. . .,m. .., .%.,
- . = . .
. .. _ = . ... . , , , ,...
i e i a ,u y p e i- :r e ioioio i i x< g ra r g a
!., 9 @ e. @
. . e.. @ ., .,
/
cAuss esscaimen Ano masenvs Ac tess
,,, g The cause of this event is attr:.cuted to inadequate desizn. Modification ,
, , , ,79-10-85 has been initiated to add a restraint to reduce the pipe stress at the ,
, reducer. Repairs will be completed during the next plant outage.
i
.ss 1 t
i.i! 30
, 6 9
'#Efs' %.:ne, ev.carrafus b Es s av" : se:vssv :sseni.ec* @
NA l Notification from A/E l
,es W @ l017iSi@l *. J. @ l
- as sc F 8 ,
f3
.tL3Asto ca .gggast 12 83 av;u1TCP .CM4tTV LCCafnC4C..tLaass i
,i.
wg wer i. ,,
NA i r u P185CM%4L tt8C34s.g3 asynset s 'vre ts T'Cao l
a6, I n l 01 q l NA ao 7 3 p to 1: 13 l
8tBSC=946 r%Jhmats NA 1335 -
y I i6 l 010i Ol@l ,, i:
.C55 Ce C# Sava :3 *13 54Clu f5 5 -s :ssem mCm I
NA l ,
.t.
e s W@l to sac usa enty so I
a.r.'ercW CES 8"QM I IIieiitiii ti i
- ,e NA L, N,j3 7@l ,a n se ,a
.wes - (904) 795_4436
- - J . Cooper, Jr.
aavscenotrAarn -
"-~~~ ( AT" u"35~ SU21'fyCAHI IT. IC100CT.CN SM)
~ '- -- - - .- - _ _ . -
7911150 N f
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= > * ..
SUPPLEMENTARY INFORMATION Report No.: 50-302/79-087/01T-3 Facility: Crystal River Unit #3 Report Date: 2 November 1979 Occurrence Date: 26 October 1979 Identification of Occurrence:
Pipe stress at a 3 x 2 reducer on the outlet of RCP-1A motor thrust bearing cooler exceeds the FSAR required allowable stress.
Canditions Prior to Occurrence:
Mode 1 power operation (75%)
Description of Occurrence:
At 1412 as a result of a verification of computer analysis of seismic restraints, it was discovered that the pipe stress at a 3 x 2 reducer en the outlet of RCP-1A notor thrust bear-ing cooler exceeds the FSAR allowable stress. Further in-vestigation revealed that the pipe stress at the reducer does not exceed current accepted Code requirements.
Designation of Apparent Cause:
The cause of this event is attributed to inadequate design.
Analysis of Occurrence: ,
No effect upon the plant or general public. Automatic isolation valves are available to isolate the affected section of this line from the remainder of the SW system.
Corrective Action:
. Modification 79-10-85 has been initiated to add a restraint to reduce the pipe stress at the 3 x 2 reducer within the FSAR requirements. Repairs will be completed during the next plant outage.
Failure Data:
This is the fifth occurrence of this type reported. Reference LER's 79-061/0lT-0 and 79-087/0lT-0, 1 and 2.
.h 4 l
.