ML19319D008: Difference between revisions
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{{#Wiki_filter:_. _ .. _ - _________ | {{#Wiki_filter:_. _ .. _ - _________ | ||
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. . _ . . . s GCEA'SEE7WR f~~ FIEF %F CONTROt etOCx:l 1. l l. l l ! cPtcase Paiur nu. ncouiRco iNrOn .mT:x 1 6 l | . . _ . . . s GCEA'SEE7WR f~~ FIEF %F CONTROt etOCx:l 1. l l. l l ! cPtcase Paiur nu. ncouiRco iNrOn .mT:x 1 6 l Auf uctNsf NuuaER Yvre * | ||
Auf uctNsf NuuaER | |||
Yvre * | |||
,7 69 l FlL l ClR lP l 3 l 14 l0l0l-l0l0l0l0l0l-l0l0]25 15 l 4 l1 l1 l1 l 1l 26 , | ,7 69 l FlL l ClR lP l 3 l 14 l0l0l-l0l0l0l0l0l-l0l0]25 15 l 4 l1 l1 l1 l 1l 26 , | ||
30 l ol 4l 31 32 l | 30 l ol 4l 31 32 l cATEcoRY "'N T NN occuff NUMBER | ||
* EVENT CATE REPORf Catt lo I 7 i 2 I s 1717 ECONT 57I -l l IT I L'J lo i s l o I-l o.13 lo 12 I in i viil a Iv I, I 74 75 7 8 58 59 60 61 68 69 E EVENT DESCRIPTION gl In mode 1 operation, in the progress of venting the makeup tank to the waste gas low- ) | |||
cATEcoRY "'N T NN occuff NUMBER | |||
* EVENT CATE REPORf Catt lo I 7 i 2 I s 1717 | |||
ECONT 57I -l l IT I L'J lo i s l o I-l o.13 lo 12 I in i viil a Iv I, I 74 75 7 8 58 59 60 61 68 69 E EVENT DESCRIPTION | |||
gl In mode 1 operation, in the progress of venting the makeup tank to the waste gas low- ) | |||
- I 7 89 . | - I 7 89 . | ||
g3 l pressure header, an unplanned radioactive gas release to the Auxiliary Building occurred j 7 89 - 1 l Venting was gl contrary to' Environmental Technical Specification 5.6.2.A. _ i dundancy NA. | |||
g3 l pressure header, an unplanned radioactive gas release to the Auxiliary Building occurred j | I 7 89 . | ||
gl contrary to' Environmental Technical Specification 5.6.2.A. _ i dundancy NA. | |||
I | |||
7 89 . | |||
gl ceased and the Auxiliary Building was evacuated immediately. The supply air to the E 7 o9 | gl ceased and the Auxiliary Building was evacuated immediately. The supply air to the E 7 o9 | ||
@l Auxiliary Bldg. was re-established & ventilation resumad Jahen che mis m ~1 a n ra t l systiu cAuss co E *euT CoMaouEvT (LER 77-73E) | @l Auxiliary Bldg. was re-established & ventilation resumad Jahen che mis m ~1 a n ra t l systiu cAuss co E *euT CoMaouEvT (LER 77-73E) | ||
Line 54: | Line 32: | ||
43 lZl9l9lg l 44 47 W48 | 43 lZl9l9lg l 44 47 W48 | ||
; | ; | ||
l CAUSE DESCn:PTON ') 1 | l CAUSE DESCn:PTON ') 1 oe lThe cause of this event is unknown at this time and is being investizated bv eha 91 ne __ , | ||
oe lThe cause of this event is unknown at this time and is being investizated bv eha 91 ne __ , | |||
7 89 i | 7 89 i | ||
{ gg l engineering staff. - | { gg l engineering staff. - | ||
x89 | x89 I | ||
I | |||
]88 ,acury utTHoo oF High alar:n on 1WA 22 shutting off | ]88 ,acury utTHoo oF High alar:n on 1WA 22 shutting off | ||
$1ATUS % POWER OTHER STATUS CISCOVERY DISC 5WAY tESCR'FIO71 | $1ATUS % POWER OTHER STATUS CISCOVERY DISC 5WAY tESCR'FIO71 | ||
~ | ~ | ||
1 lE l l1l0l0l l NA l l^ l l Auxiliary Bldg. supply air fans. | 1 lE l l1l0l0l l NA l l^ l l Auxiliary Bldg. supply air fans. | ||
7G 9 10 12 13 44 45 46 REL 5 C AMOUNT OF ACTMTV LoCATCN 08 RELEASE | 7G 9 10 12 13 44 45 46 REL 5 C AMOUNT OF ACTMTV LoCATCN 08 RELEASE i | ||
i | |||
{ @E EASE l 1.8 curies noble gas l lRalease to Auxiliarv Blde. vent to ne w . | { @E EASE l 1.8 curies noble gas l lRalease to Auxiliarv Blde. vent to ne w . | ||
7 8 9 10 11 44 45 , | 7 8 9 10 11 44 45 , | ||
C PERSONMEL EXPOSURES NUMBER TYPE DESCR@TCN | C PERSONMEL EXPOSURES NUMBER TYPE DESCR@TCN 33 l 0l 0l 0l 7 89 11 | ||
33 l 0l 0l 0l 7 89 11 | |||
] 12 13 l NA E | ] 12 13 l NA E | ||
PERSONNEL INJURIES NUMBER DESCRIPTON , | |||
PERSONNEL INJURIES | |||
NUMBER DESCRIPTON , | |||
1 101 ol al I ni 0 | 1 101 ol al I ni 0 | ||
7 89 11 .1 2 OFFSITE CONSECUENCES | 7 89 11 .1 2 OFFSITE CONSECUENCES Ql NA - | ||
Ql NA - | |||
7 8 '1 L LOSS OR OAMAGE TO FAC:UTY TYPE CESCR:PTON . | 7 8 '1 L LOSS OR OAMAGE TO FAC:UTY TYPE CESCR:PTON . | ||
1 1 MA 7 89 10 0 PUBUC!TY l NA . | |||
1 1 MA 7 89 10 0 PUBUC!TY | |||
l NA . | |||
L-7 89 ADDITCNAL FACTORS sl This was a repetitive occurrence as reported by LER's 77-49E & 77-61E ~ , | L-7 89 ADDITCNAL FACTORS sl This was a repetitive occurrence as reported by LER's 77-49E & 77-61E ~ , | ||
L 7 89 SEE SUPPLEMENTARY INFORMATION ACHED. | L 7 89 SEE SUPPLEMENTARY INFORMATION ACHED. | ||
8003040f X NAME: | 8003040f X NAME: | ||
- 1. P. Stewart PHONE: (813) 866-4159 | - 1. P. Stewart PHONE: (813) 866-4159 | ||
~ | ~ | ||
. seo eas.ar l | . seo eas.ar l | ||
. . . .m -m | . . . .m -m | ||
~ | ~ | ||
.. SUPP1.EMENTARY INFORMATION | .. SUPP1.EMENTARY INFORMATION | ||
) | ) | ||
: 4. Report No.: 50-302/77-73E | : 4. Report No.: 50-302/77-73E | ||
: 2. Facility: Crystal River Unit #3 - | : 2. Facility: Crystal River Unit #3 - | ||
: 3. Raport Date: 25 July 1977 | : 3. Raport Date: 25 July 1977 | ||
: 4. ,0ccurrence Date: 16 July 1977 | : 4. ,0ccurrence Date: 16 July 1977 | ||
: 5. Identification of Occurrence: | : 5. Identification of Occurrence: | ||
Unplanned release of radioactive waste gas costrary to Environmental Technical Specification 5.6.2.A. | Unplanned release of radioactive waste gas costrary to Environmental Technical Specification 5.6.2.A. | ||
: 6. Conditions Prior to Occurrence: . | : 6. Conditions Prior to Occurrence: . | ||
Mode 1 power operation. | Mode 1 power operation. | ||
7. | 7. | ||
Description of Occurrence: 3 At 2017 while venting the makeup tank to the waste gas lov pressure header, an i unplanned radioactive gas release to the Anrflf ary Building occurred. The maxi- .: | |||
Description of Occurrence: 3 | |||
At 2017 while venting the makeup tank to the waste gas lov pressure header, an i unplanned radioactive gas release to the Anrflf ary Building occurred. The maxi- .: | |||
mum instantaneous release rate at the peak cf the discharge profile was .0063% " | mum instantaneous release rate at the peak cf the discharge profile was .0063% " | ||
i of the most restrictive limit set forth in Specification 2.4.2.A(1). When the radiation alarms cleared,the supply air was re-established to the Auxiliary Build-ing and ventilation resumed. | i of the most restrictive limit set forth in Specification 2.4.2.A(1). When the radiation alarms cleared,the supply air was re-established to the Auxiliary Build-ing and ventilation resumed. | ||
S. Designation of Apparent Cause: ; | S. Designation of Apparent Cause: ; | ||
i | i Unknown at this time. | ||
Unknown at this time. | |||
i | i | ||
: 9. Analysis of occurrence: | : 9. Analysis of occurrence: | ||
Line 142: | Line 84: | ||
J g | J g | ||
i I | i I | ||
l | l | ||
, . _ _, . - - ., , . - , . - .}} | , . _ _, . - - ., , . - , . - .}} |
Revision as of 06:06, 1 February 2020
ML19319D008 | |
Person / Time | |
---|---|
Site: | Crystal River |
Issue date: | 07/25/1977 |
From: | Stewart W FLORIDA POWER CORP. |
To: | |
Shared Package | |
ML19319C998 | List: |
References | |
NUDOCS 8003040935 | |
Download: ML19319D008 (2) | |
Text
_. _ .. _ - _________
m .
. . _ . . . s GCEA'SEE7WR f~~ FIEF %F CONTROt etOCx:l 1. l l. l l ! cPtcase Paiur nu. ncouiRco iNrOn .mT:x 1 6 l Auf uctNsf NuuaER Yvre *
,7 69 l FlL l ClR lP l 3 l 14 l0l0l-l0l0l0l0l0l-l0l0]25 15 l 4 l1 l1 l1 l 1l 26 ,
30 l ol 4l 31 32 l cATEcoRY "'N T NN occuff NUMBER
- EVENT CATE REPORf Catt lo I 7 i 2 I s 1717 ECONT 57I -l l IT I L'J lo i s l o I-l o.13 lo 12 I in i viil a Iv I, I 74 75 7 8 58 59 60 61 68 69 E EVENT DESCRIPTION gl In mode 1 operation, in the progress of venting the makeup tank to the waste gas low- )
- I 7 89 .
g3 l pressure header, an unplanned radioactive gas release to the Auxiliary Building occurred j 7 89 - 1 l Venting was gl contrary to' Environmental Technical Specification 5.6.2.A. _ i dundancy NA.
I 7 89 .
gl ceased and the Auxiliary Building was evacuated immediately. The supply air to the E 7 o9
@l Auxiliary Bldg. was re-established & ventilation resumad Jahen che mis m ~1 a n ra t l systiu cAuss co E *euT CoMaouEvT (LER 77-73E)
CODE CODE COMPONENT CCCE SLPautR MANUFACTURER VOLATON
, E IM la l lEl 7 89 10 11 lZ lZ lZ !Z lZ lz l 12 17 y
43 lZl9l9lg l 44 47 W48
l CAUSE DESCn:PTON ') 1 oe lThe cause of this event is unknown at this time and is being investizated bv eha 91 ne __ ,
7 89 i
{ gg l engineering staff. -
x89 I
]88 ,acury utTHoo oF High alar:n on 1WA 22 shutting off
$1ATUS % POWER OTHER STATUS CISCOVERY DISC 5WAY tESCR'FIO71
~
1 lE l l1l0l0l l NA l l^ l l Auxiliary Bldg. supply air fans.
7G 9 10 12 13 44 45 46 REL 5 C AMOUNT OF ACTMTV LoCATCN 08 RELEASE i
{ @E EASE l 1.8 curies noble gas l lRalease to Auxiliarv Blde. vent to ne w .
7 8 9 10 11 44 45 ,
C PERSONMEL EXPOSURES NUMBER TYPE DESCR@TCN 33 l 0l 0l 0l 7 89 11
] 12 13 l NA E
PERSONNEL INJURIES NUMBER DESCRIPTON ,
1 101 ol al I ni 0
7 89 11 .1 2 OFFSITE CONSECUENCES Ql NA -
7 8 '1 L LOSS OR OAMAGE TO FAC:UTY TYPE CESCR:PTON .
1 1 MA 7 89 10 0 PUBUC!TY l NA .
L-7 89 ADDITCNAL FACTORS sl This was a repetitive occurrence as reported by LER's77-49E & 77-61E ~ ,
L 7 89 SEE SUPPLEMENTARY INFORMATION ACHED.
8003040f X NAME:
- 1. P. Stewart PHONE: (813) 866-4159
~
. seo eas.ar l
. . . .m -m
~
.. SUPP1.EMENTARY INFORMATION
)
- 4. Report No.: 50-302/77-73E
- 2. Facility: Crystal River Unit #3 -
- 3. Raport Date: 25 July 1977
- 4. ,0ccurrence Date: 16 July 1977
- 5. Identification of Occurrence:
Unplanned release of radioactive waste gas costrary to Environmental Technical Specification 5.6.2.A.
- 6. Conditions Prior to Occurrence: .
Mode 1 power operation.
7.
Description of Occurrence: 3 At 2017 while venting the makeup tank to the waste gas lov pressure header, an i unplanned radioactive gas release to the Anrflf ary Building occurred. The maxi- .:
mum instantaneous release rate at the peak cf the discharge profile was .0063% "
i of the most restrictive limit set forth in Specification 2.4.2.A(1). When the radiation alarms cleared,the supply air was re-established to the Auxiliary Build-ing and ventilation resumed.
S. Designation of Apparent Cause: ;
i Unknown at this time.
i
- 9. Analysis of occurrence:
The healch and safety of the plant and general public were not affected as the j maximum instantaneous release rates were not exceeded.
- 10. Cort active Action:
A concerted effort by plant enr' ag staff involving piping checks is underway to establish the cause, in ord' , define necessary corrective action. As yet, i no conclusion has beau reacher j l
- 11. Failure Data:
This was the third occurrence of an unplanned release originating from the waste gas system. See LER's 77-49-E dated 14 June 1977 and 77-61E dated 6 July 1977.
J g
i I
l
, . _ _, . - - ., , . - , . - .