ML19253A843: Difference between revisions
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al+ | al+ | ||
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,,,, SEC tsTta. | ,,,, SEC tsTta. | ||
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12 n | |||
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[Id | [Id l- l Wu | ||
l- l | |||
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t Al@ | t Al@ | ||
! ZI 9f 919 .,fG CAL.st casemer': . As:::ut.m; A:-': s @ | |||
! ZI 9f 919 .,fG | |||
CAL.st casemer': . As:::ut.m; A:-': s @ | |||
, e l rhis event was caused b, an expected spi'xe following a Reactor trip and known; leaking fuel pins. No c- &ctive action necessary.as the Reactor Coolant , | , e l rhis event was caused b, an expected spi'xe following a Reactor trip and known; leaking fuel pins. No c- &ctive action necessary.as the Reactor Coolant , | ||
System Purification returned the DEI-131 to within acceptable limits. , | System Purification returned the DEI-131 to within acceptable limits. , | ||
iei l ! | iei l ! | ||
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s . .a | |||
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Line 101: | Line 71: | ||
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: w. t c .ac bate( Js Cooper , Jr- , (90_4) 795-6486 | : w. t c .ac bate( Js Cooper , Jr- , (90_4) 795-6486 | ||
/ | / | ||
(SEE ATTACHF SUPPLEMENTARY INFOR'4ATION SHEET) * <51,3 | (SEE ATTACHF SUPPLEMENTARY INFOR'4ATION SHEET) * <51,3 79001105/O s | ||
79001105/O s | |||
Supplementary Information Report No.- 50-302 / 077-03 L-0 Facility: Crystal River Unit #3 Report Date: 4 September 1979 Occurrence Date: 16 August 1979 Identification of Occurrence: | Supplementary Information Report No.- 50-302 / 077-03 L-0 Facility: Crystal River Unit #3 Report Date: 4 September 1979 Occurrence Date: 16 August 1979 Identification of Occurrence: | ||
The Dose Equivalent 1-131 was greater than 1.0 microcurie per gram of primary coolant contrary to Technical Speci-fication 3.4.8. | The Dose Equivalent 1-131 was greater than 1.0 microcurie per gram of primary coolant contrary to Technical Speci-fication 3.4.8. | ||
Conditions Prior to Occurrence: | Conditions Prior to Occurrence: | ||
Line 134: | Line 95: | ||
/rc gg. . 94 JaiG.LY- | /rc gg. . 94 JaiG.LY- | ||
Reactor Power History of Prior Forty-eight Hours Iten I Event Date: 16 Au.ust 1979 o>s33, 63 tb 0' %>it b, | Reactor Power History of Prior Forty-eight Hours Iten I Event Date: 16 Au.ust 1979 o>s33, 63 tb 0' %>it b, | ||
..r v | ..r v | ||
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Oh 5 95.6,3 10131 | Oh 5 95.6,3 10131 | ||
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97.31 79.30 1.000 s 3 | |||
97.31 | |||
79.30 | |||
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.964 | .964 | ||
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g .47l m | g .47l m | ||
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M81 b | M81 b | ||
l og | l og | ||
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5 46 531 P-- | 5 46 531 P-- | ||
d 156l | d 156l El O | ||
El O | |||
r-- | r-- | ||
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6i 6 HCUR G M'R TUR3 0 titJ TH NI UTIO RoiTO Ot2 cg71c) 7g36) cp733) <p7:33 .wn7 , g,w | 6i 6 HCUR G M'R TUR3 0 titJ TH NI UTIO RoiTO Ot2 cg71c) 7g36) cp733) <p7:33 .wn7 , g,w | ||
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,i li3j v.vv 4 o is . , cr , i;oe. .s s 13 :> 5 . 3 a 10170 99,39 * | ,i li3j v.vv 4 o is . , cr , i;oe. .s s 13 :> 5 . 3 a 10170 99,39 * | ||
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p A * -- 6 - ) 6 | p A * -- 6 - ) 6 | ||
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v | v | ||
-* = | -* = | ||
* b | * b | ||
, '231 | , '231 | ||
! C .:..1 | ! C .:..1 w | ||
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_ai i ... -. .. | _ai i ... -. .. | ||
3 | 3 | ||
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a 331 | a 331 | ||
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C 351 - . . _ - : - | C 351 - . . _ - : - | ||
g | g | ||
._ _ - , - , , 4 :- - | ._ _ - , - , , 4 :- - | ||
T171 | T171 | ||
--t O 38 RAT.IQ OF N1. TO ,fJ TH = 1.001 r139 140 | --t O 38 RAT.IQ OF N1. TO ,fJ TH = 1.001 r139 140 t | ||
t | |||
'2 kid | '2 kid | ||
'3 | '3 | ||
\f q) O '- | \f q) O '- | ||
o ~ 3 | o ~ 3 | ||
<s m e OfD h W Oq | <s m e OfD h W Oq 9 yt.u p' uu-4si 47l O Icl - | ||
9 yt.u p' uu-4si 47l O Icl - | |||
istl O h.. | istl O h.. | ||
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o, | o, | ||
!ss) | !ss) | ||
Om ;541 N | Om ;541 N | ||
Line 432: | Line 249: | ||
O | O | ||
l~r | l~r on.u ,.3 ,. t. ; , , , , , | ||
on.u ,.3 ,. t. ; , , , , , | |||
.r O | .r O | ||
'l RATIO HOUR G M!.jF TURB G M'r H MI 9ATIO O 2 (g7 g) (7333, <p733) (g723, g;jg7 ggjg7 3 __, . . . . ,. - . , _ _ . , _ . - _ . . | 'l RATIO HOUR G M!.jF TURB G M'r H MI 9ATIO O 2 (g7 g) (7333, <p733) (g723, g;jg7 ggjg7 3 __, . . . . ,. - . , _ _ . , _ . - _ . . | ||
) 4 ;u c, :: is c .- c-, :c- : -- | ) 4 ;u c, :: is c .- c-, :c- : -- | ||
O il .' | O il .' | ||
+. , ; ;/ | +. , ; ;/ | ||
1, <' ,. , - | 1, <' ,. , - | ||
2. | 2. | ||
0 ,_ u. :) . . | 0 ,_ u. :) . . | ||
a ,. | a ,. | ||
s., . ... . . | s., . ... . . | ||
;- | ;- | ||
Oh .- - . _ . _ . _ .. _. _ ,_ | Oh .- - . _ . _ . _ .. _. _ ,_ | ||
a w. v u. .v.-~. . , . . . . . - | a w. v u. .v.-~. . , . . . . . - | ||
;,; | ;,; | ||
- 4 0.00 0 .00 0.00 0.000 0.000 O lij 5 0.00 0 .00 0,00 9,900 3,100 q | - 4 0.00 0 .00 0.00 0.000 0.000 O lij 5 0.00 0 .00 0,00 9,900 3,100 q | ||
;1 01 111 O lm e , r.' - | |||
;1 01 | |||
111 O lm e , r.' - | |||
. . .as | . . .as | ||
; G q | |||
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e.5., ri a. ._ . .~J .g | e.5., ri a. ._ . .~J .g | ||
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13 3; t r | |||
13 3; | :16i r% ;17: | ||
t r | |||
:16i | |||
r% ;17: | |||
U - | U - | ||
:18: | :18: | ||
1 98 | 1 98 | ||
.; a :- | .; a :- | ||
Line 508: | Line 293: | ||
- :4, 4 | - :4, 4 | ||
+ :5: | + :5: | ||
- L 16J | - L 16J | ||
, :r f | , :r f | ||
:si | :si | ||
? L, it. | ? L, it. | ||
; a | ; a | ||
:n .3 i | :n .3 i | ||
-; ( a:: | -; ( a:: | ||
. ni - | . ni - | ||
:- m - - - | :- m - - - | ||
g .3_3,; | g .3_3,; | ||
_ J. .u ..f | _ J. .u ..f | ||
! '371 I C 13sl g J,-+TIO OF NI TO iiWTH = ' | |||
! '371 | |||
I C 13sl g J,-+TIO OF NI TO iiWTH = ' | |||
.073 | .073 | ||
:et w | :et w | ||
O t41 T - a o FA | O t41 T - a o FA | ||
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- nn n n a Ctal O>\C'' \i \Loi | - nn n n a Ctal O>\C'' \i \Loi | ||
\H \ ' (' ) j ru\ \. | \H \ ' (' ) j ru\ \. | ||
G , U JU t u o :s= | G , U JU t u o :s= | ||
d | d | ||
Line 552: | Line 316: | ||
;511 i :1 | ;511 i :1 | ||
,5 | ,5 | ||
<r.-.,..n 0 13] =>'.} (t.k.i d pl | <r.-.,..n 0 13] =>'.} (t.k.i d pl | ||
!ssi 0 561: | !ssi 0 561: | ||
.57 sf O | .57 sf O | ||
7 | 7 Fuel Burnup by Core Region Item 2 Event Date: 16 August 1979 (n'; 9 , r3 els) i d :sj | ||
Item 2 The burnup was calculated at 11.7 EFPD for the three (3) enrich:nent regions. | |||
Fuel Burnup by Core Region Item 2 Event Date: 16 August 1979 (n'; 9 , r3 els) i d :sj | |||
REGION NUMBER of FA BURNUP A MWD /MTU B 61 13,568 MWD /MTU C 60 10,517 MWD /MTU D 56 297 MWD /MTU Ave. 9024 MWD /MTU 337320 | REGION NUMBER of FA BURNUP A MWD /MTU B 61 13,568 MWD /MTU C 60 10,517 MWD /MTU D 56 297 MWD /MTU Ave. 9024 MWD /MTU 337320 | ||
Line 570: | Line 330: | ||
Item 3 Clean-up history starting fortv-eight (48) hours prior to the first sample in which the limit was exceeded is as follows: | Item 3 Clean-up history starting fortv-eight (48) hours prior to the first sample in which the limit was exceeded is as follows: | ||
DATE TIME LETDOW'1 FLOW 8/14/79 0212 61 gpm 8/15/79 0100 68 gpm 8/16/79 0130 60 gpm e> - . . . , | DATE TIME LETDOW'1 FLOW 8/14/79 0212 61 gpm 8/15/79 0100 68 gpm 8/16/79 0130 60 gpm e> - . . . , | ||
*)%) ( ) , ,-% , | *)%) ( ) , ,-% , | ||
Line 577: | Line 336: | ||
%.)43* } r -e *L$ | %.)43* } r -e *L$ | ||
Degas Operations Item 4 DATE TABLE TIME 8/14/79 Degassed Pressurizer 1600 8/16/79 Reactor Trip 0255 Y | Degas Operations Item 4 DATE TABLE TIME 8/14/79 Degassed Pressurizer 1600 8/16/79 Reactor Trip 0255 Y | ||
s~ | s~ | ||
o <ri &.. | o <ri &.. | ||
au 4.g | au 4.g | ||
Time Duration When DEI-131 Exceeded 1.0 u C1/ gram anc I-131 Analysis Results Item 5 Event Date: 16 August 1979 m<- I Jg_e,' | Time Duration When DEI-131 Exceeded 1.0 u C1/ gram anc I-131 Analysis Results Item 5 Event Date: 16 August 1979 m<- I Jg_e,' | ||
.s, .tf L. . . t | .s, .tf L. . . t | ||
Item 5 As per Technical Specification 3.4.8 The four (4) hour sampling frequency was initiated at 0509 on 16 August 1979 and the Dose Equivalent I-131 was 2.059 microcuries per gram. The four (4) hour samnling frequency was terminated at 1415, on 18 August 1979 when the DEI-131 was determined to be .3685 microcuries per gram. DEI-131 was 5 1 a Ci/ gram at 0500 cn 18 August 1979 when the sample results were .7437 uci/ gram. | Item 5 As per Technical Specification 3.4.8 The four (4) hour sampling frequency was initiated at 0509 on 16 August 1979 and the Dose Equivalent I-131 was 2.059 microcuries per gram. The four (4) hour samnling frequency was terminated at 1415, on 18 August 1979 when the DEI-131 was determined to be .3685 microcuries per gram. DEI-131 was 5 1 a Ci/ gram at 0500 cn 18 August 1979 when the sample results were .7437 uci/ gram. | ||
O m , - 3. , _ | O m , - 3. , _ | ||
'}0 1%.5+ERs}} | '}0 1%.5+ERs}} |
Revision as of 01:46, 2 February 2020
ML19253A843 | |
Person / Time | |
---|---|
Site: | Crystal River |
Issue date: | 09/04/1979 |
From: | Cooper J FLORIDA POWER CORP. |
To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
Shared Package | |
ML19253A837 | List: |
References | |
LER-79-077-03L, LER-79-77-3L, NUDOCS 7909110510 | |
Download: ML19253A843 (14) | |
Text
{{#Wiki_filter:NRC PCnM %6 (, U. S. NUCLE AR R EGUL AT on Y CoMMis51CN (7 718 LICENSEE EVENT REPORT EXfilDIT A I f- 1 I I l iett Ast reu=r on ivet ALL asowato iNeonMaticN coNinolstoc< l. .@ 4 1 o i d i Lls us,.. C Rlm t 3 t@[0 i O!- t 01 00 1 ! O0 f 110 ! Ol @l I 1l 1 1 1 1 r G ,, I - l @ , . .. , s .a , . . . . . -
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CC*.T o i [ @ @l0f 510t -1 0 i 3r0 t 2 g O! 8J 1 l 6 f 7f 9 Q[ 0! 91. .01417 ., .. , ....... l 9 l@.. , . . .. m......... . . . . . . . . avENT OtsCAirT&ON AfeQ #aOg Ag([ coae 5(OLENC(3 g l At 0509 following a Reactor trip, Chem / Rad sampling revealed that the g reactor coolant Dose Equivalent I-131 exceeded 1.0 microcurie per gram , o , [ contrary to Technical Specification 3.4.8. No safety hazard as Reactor l o , , Coolant System Purification reduced DEI-131 to acceptable levels. Redundancy , [7pq t .n The DEI-131 was .7437 microc.iries per'eram at 0500 on 18 August 1979. ; y ; This is the twelfth occurrence reported under this Technical Specification. g I L,2,1_,j e, i *a svirtu eaasi : . .s e co . u,.. coon coce sa::: co >>cs c .? ::st so ::: s.,:::: al+ lC lGl g ] g l Zlu @ J ZI a Zi Zl Z( Z ;g []], Q, g
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(SEE ATTACHF SUPPLEMENTARY INFOR'4ATION SHEET) * <51,3 79001105/O s
Supplementary Information Report No.- 50-302 / 077-03 L-0 Facility: Crystal River Unit #3 Report Date: 4 September 1979 Occurrence Date: 16 August 1979 Identification of Occurrence: The Dose Equivalent 1-131 was greater than 1.0 microcurie per gram of primary coolant contrary to Technical Speci-fication 3.4.8. Conditions Prior to Occurrence: Mode 3 hot standby. Description of Occurrence: At 0509, following a Reactor trip, Chem / Rad sampling revealed that the Dose Equivalent I-131 exceeded 1.0 microcurie per gram of primary coolant. Dose Equivalent I-131 was 2.059 microcuries per gram. Action statement of 3.4.8 was entered and the four hour sampling frequency was initiated. The Dose Equivalent I-131 returned to within acceptable limits at 0500 on 18 August 1979. Designation of Apparent Cause: This event was due to an expected transien; spike follow-ing a Reactor trip and known leaking fuel pins. Analysis of Occurrence: There was no safety hazard to the plant or general public as sampling demenstrated reducing levels of DEI-131. The transient was within the capabilities of the plant puri-fication system. Corrective Action: No corrective action deemed necessary as Reactor Coolant purification returned the DEI-131 to within acceptable limits. Failure Data: This is the twelfth occurrence reported under this Technical Specification. /rc gg. . 94 JaiG.LY-
Reactor Power History of Prior Forty-eight Hours Iten I Event Date: 16 Au.ust 1979 o>s33, 63 tb 0' %>it b,
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7 Fuel Burnup by Core Region Item 2 Event Date: 16 August 1979 (n'; 9 , r3 els) i d :sj
Item 2 The burnup was calculated at 11.7 EFPD for the three (3) enrich:nent regions. REGION NUMBER of FA BURNUP A MWD /MTU B 61 13,568 MWD /MTU C 60 10,517 MWD /MTU D 56 297 MWD /MTU Ave. 9024 MWD /MTU 337320
Clean-up Flow History Iteet 3 Event Date: 16 August 1979
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Item 3 Clean-up history starting fortv-eight (48) hours prior to the first sample in which the limit was exceeded is as follows: DATE TIME LETDOW'1 FLOW 8/14/79 0212 61 gpm 8/15/79 0100 68 gpm 8/16/79 0130 60 gpm e> - . . . ,
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History of Degassing Operations for This Report Item 4 Event Date: 16 August 1979 ( . p > q
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Degas Operations Item 4 DATE TABLE TIME 8/14/79 Degassed Pressurizer 1600 8/16/79 Reactor Trip 0255 Y s~ o <ri &.. au 4.g
Time Duration When DEI-131 Exceeded 1.0 u C1/ gram anc I-131 Analysis Results Item 5 Event Date: 16 August 1979 m<- I Jg_e,'
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Item 5 As per Technical Specification 3.4.8 The four (4) hour sampling frequency was initiated at 0509 on 16 August 1979 and the Dose Equivalent I-131 was 2.059 microcuries per gram. The four (4) hour samnling frequency was terminated at 1415, on 18 August 1979 when the DEI-131 was determined to be .3685 microcuries per gram. DEI-131 was 5 1 a Ci/ gram at 0500 cn 18 August 1979 when the sample results were .7437 uci/ gram. O m , - 3. , _
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