ML19256E497: Difference between revisions
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u.s. MuctsAm nscubarony coMuissacM | u.s. MuctsAm nscubarony coMuissacM | ||
! mac scans 35s | ! mac scans 35s | ||
* mm ' t.!CENSEE EVENT REPORT EXHl81T A l | * mm ' t.!CENSEE EVENT REPORT EXHl81T A l | ||
CONTRcL 5Lecc l (ptsAsa pAINf cA Tv g ALL Ascusato tNPCAMAncM | CONTRcL 5Lecc l (ptsAsa pAINf cA Tv g ALL Ascusato tNPCAMAncM | ||
Line 39: | Line 37: | ||
* . u ei :ocair wsaa EveMT QEscAIPT1cN A40 8mCSAELA CONSECu1NCss h i pi At 1530, in Mode 1, it was determined that on 8 July 1979. the volume of the f | * . u ei :ocair wsaa EveMT QEscAIPT1cN A40 8mCSAELA CONSECu1NCss h i pi At 1530, in Mode 1, it was determined that on 8 July 1979. the volume of the f | ||
, ,,,,,NaOH tank (BST-1) exceeded the volume requirements of Technical Specification | , ,,,,,NaOH tank (BST-1) exceeded the volume requirements of Technical Specification | ||
,3.6.2.2 and that event is reportable under Section 6.9.1.8.b. Redundanr' NA. ! | ,3.6.2.2 and that event is reportable under Section 6.9.1.8.b. Redundanr' NA. ! | ||
,,, ,No effect upon the plant or general public. This is the first occurrence of f | ,,, ,No effect upon the plant or general public. This is the first occurrence of f | ||
, , , ,this type reported. | , , , ,this type reported. | ||
I se,i i | I se,i i | ||
Line 50: | Line 45: | ||
, , | , , | ||
* tt ous=mu ac=, .ncs 19 | * tt ous=mu ac=, .ncs 19 | ||
. ..e.r .swca | . ..e.r .swca n.PCMT MC. COS "'89 4Q. | ||
n.PCMT MC. COS "'89 4Q. | |||
: u. .o eve =rv.A4 | : u. .o eve =rv.A4 | ||
@ 4<g' I 7 I 91 1- .I a | @ 4<g' I 7 I 91 1- .I a | ||
Line 67: | Line 60: | ||
cAuss cascaistics Ano cemetenvs Acuess | cAuss cascaistics Ano cemetenvs Acuess | ||
,,/ gThe cause of th'is event is attributed to inadeauate desien. The existing desient | ,,/ gThe cause of th'is event is attributed to inadeauate desien. The existing desient | ||
,did not provide adequate indication of t2seable tank volume. Daily operating | ,did not provide adequate indication of t2seable tank volume. Daily operating | ||
,f | ,f | ||
~ | ~ | ||
, , Surveillance Procedure SS300 has been revised to include an operating band | , , Surveillance Procedure SS300 has been revised to include an operating band | ||
,,, y requirement within the Te:hnical Specification limit. | ,,, y requirement within the Te:hnical Specification limit. | ||
.4 I I | .4 I I | ||
'sr s aenas cwensvarus @ Es :55=T :'sc=venv :ssCz e c* @ | 'sr s aenas cwensvarus @ Es :55=T :'sc=venv :ssCz e c* @ | ||
i i s t Q @ l ll q0lgiis NA l W @l Interpretation of NRC | i i s t Q @ l ll q0lgiis NA l W @l Interpretation of NRC | ||
.e .e sa | .e .e sa r s 4., y is .* | ||
r s 4., y is .* | |||
to.ar,nc..u.u@ | to.ar,nc..u.u@ | ||
. uu. ...uan m,,,..crim @l h | . uu. ...uan m,,,..crim @l h | ||
iis l Zl | iis l Zl | ||
'' ,..'.t | '' ,..'.t | ||
@l . so NA | @l . so NA | ||
[ | [ | ||
~' | ~' | ||
NA | NA I | ||
I | |||
,6, 17(o jg]g,*"*4 3g | ,6, 17(o jg]g,*"*4 3g | ||
;nn2 2,86 | ;nn2 2,86 l '' | ||
l '' | |||
= | = | ||
,,4:,o.'Ao '' | ,,4:,o.'Ao '' | ||
a s | a s | ||
,i, 10 75"f0 gf"'''~"O NA [fMO] 9h g\\k\" l I | ,i, 10 75"f0 gf"'''~"O NA [fMO] 9h g\\k\" l I | ||
l u seuu - - | l u seuu - - | ||
' g g 'g | ' g g 'g | ||
,u r. g | ,u r. g | ||
' NA- l | ' NA- l | ||
,' I a. L. 2J@l... | ,' I a. L. 2J@l... | ||
~ eLs cNLv | ~ eLs cNLv | ||
; , =Cg ,g | ; , =Cg ,g | ||
, d, @l. A NA l 'lfIIIIIII8 II l | , d, @l. A NA l 'lfIIIIIII8 II l | ||
( | ( | ||
4v '2,.,2,en J.. cog er, Jr. ,,,,,,. (90<.) 795-6486 zz Az emm surrt ) | 4v '2,.,2,en J.. cog er, Jr. ,,,,,,. (90<.) 795-6486 zz Az emm surrt ) | ||
trice.A::cu g - | trice.A::cu g - | ||
~ - | ~ - | ||
.- ~ | .- ~ | ||
SUPPLEMENTARY INFORMATION Report No.: 50-302/79-096/0lT-0 Facility: Crystal River Unit #3 Report Date: 26 October 1979 Identification of Occurrence: | SUPPLEMENTARY INFORMATION Report No.: 50-302/79-096/0lT-0 Facility: Crystal River Unit #3 Report Date: 26 October 1979 Identification of Occurrence: | ||
Sodium hydroxide tank BST-2 inoperable contrary to Technical Specification 3.6.2.2 and reportable under Section 6.9.1.8.b. | Sodium hydroxide tank BST-2 inoperable contrary to Technical Specification 3.6.2.2 and reportable under Section 6.9.1.8.b. | ||
Conditions Prior to Occurrence: | Conditions Prior to Occurrence: | ||
Mude 1 pcwer operation (100%) | Mude 1 pcwer operation (100%) | ||
Description of Occurrence: | Description of Occurrence: | ||
Line 151: | Line 113: | ||
Daily operating Surveillance Procedure, SP-300, was revised to in-clude an operating band requirement that will maintain the NaOH tank volume within the Technical Specification limits. In addition, re-sponsible personnel have been instructed in regard to the reporting requirements for events of this type. Future events will be evalu-ated in this regard and reported aoproprit.tely. | Daily operating Surveillance Procedure, SP-300, was revised to in-clude an operating band requirement that will maintain the NaOH tank volume within the Technical Specification limits. In addition, re-sponsible personnel have been instructed in regard to the reporting requirements for events of this type. Future events will be evalu-ated in this regard and reported aoproprit.tely. | ||
Supplementary Information 50-302/79-096/01T-0 Page 2 Failure Data: This is the first occurrence of this type reported. | Supplementary Information 50-302/79-096/01T-0 Page 2 Failure Data: This is the first occurrence of this type reported. | ||
/rc 1'O' | /rc 1'O' | ||
.}} | .}} |
Latest revision as of 09:03, 22 February 2020
ML19256E497 | |
Person / Time | |
---|---|
Site: | Crystal River ![]() |
Issue date: | 10/26/1979 |
From: | Cooper J FLORIDA POWER CORP. |
To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
Shared Package | |
ML19256E484 | List: |
References | |
LER-79-096-01T, LER-79-96-1T, NUDOCS 7911070531 | |
Download: ML19256E497 (3) | |
Text
,
=
u.s. MuctsAm nscubarony coMuissacM
! mac scans 35s
- mm ' t.!CENSEE EVENT REPORT EXHl81T A l
CONTRcL 5Lecc l (ptsAsa pAINf cA Tv g ALL Ascusato tNPCAMAncM
- l. i l l I I I lQ .
l ois !? I Li C El 213 l@l 010 t- 1 01_ 0.1 0]~ O .
t 0! to i 0;gg 4 ; 1 2.
a :.
9 gl
_om -.. a g
i g; ,,o g
,igg i
, . . _ .. w . .. .
- c=,. r QQl 01 5 01 -t0; 3:0 i2a g;1: 0 t 118 17 i 9 Qi's1101216!
oe 1**,,",',
se av tar cars :* accar sar, 719t@ w
- . u ei :ocair wsaa EveMT QEscAIPT1cN A40 8mCSAELA CONSECu1NCss h i pi At 1530, in Mode 1, it was determined that on 8 July 1979. the volume of the f
, ,,,,,NaOH tank (BST-1) exceeded the volume requirements of Technical Specification ,3.6.2.2 and that event is reportable under Section 6.9.1.8.b. Redundanr' NA. !
,,, ,No effect upon the plant or general public. This is the first occurrence of f
, , , ,this type reported.
I se,i i
. I 2es 1 COCS E susc 8 ::M8C98Mf0005 548CO E & S oi., I sia ig gg g@ i r i NiS ir iai ut@ g@ w@
9 IQ 12 i3 le 3
, ,
- tt ous=mu ac=, .ncs 19
. ..e.r .swca n.PCMT MC. COS "'89 4Q.
- u. .o eve =rv.A4
@ 4<g' I 7 I 91 1- .I a
i of 91 6 [ 1/f v
10 t i i a .,
i Tl a 8, 2
Wa 2, a 1. 2.
"CumS Sb3 1"' ,C w e. t wa= AEA 04 e b9g u as Ig la Zf@ W@
u 1 l 0101 01 0l
.e U@
ss lN t@
1 l.a Al@ l B 10 l 4I Sl@.,
/
cAuss cascaistics Ano cemetenvs Acuess
,,/ gThe cause of th'is event is attributed to inadeauate desien. The existing desient
,did not provide adequate indication of t2seable tank volume. Daily operating
,f
~
, , Surveillance Procedure SS300 has been revised to include an operating band
,,, y requirement within the Te:hnical Specification limit.
.4 I I
'sr s aenas cwensvarus @ Es :55=T :'sc=venv :ssCz e c* @
i i s t Q @ l ll q0lgiis NA l W @l Interpretation of NRC
.e .e sa r s 4., y is .*
to.ar,nc..u.u@
. uu. ...uan m,,,..crim @l h
iis l Zl
,..'.t
@l . so NA
[
~'
NA I
,6, 17(o jg]g,*"*4 3g
- nn2 2,86 l
=
,,4:,o.'Ao
a s
,i, 10 75"f0 gf"~"O NA [fMO] 9h g\\k\" l I
l u seuu - -
' g g 'g
,u r. g
' NA- l
,' I a. L. 2J@l...
~ eLs cNLv
- , =Cg ,g
, d, @l. A NA l 'lfIIIIIII8 II l
(
4v '2,.,2,en J.. cog er, Jr. ,,,,,,. (90<.) 795-6486 zz Az emm surrt )
trice.A::cu g -
~ -
.- ~
SUPPLEMENTARY INFORMATION Report No.: 50-302/79-096/0lT-0 Facility: Crystal River Unit #3 Report Date: 26 October 1979 Identification of Occurrence:
Sodium hydroxide tank BST-2 inoperable contrary to Technical Specification 3.6.2.2 and reportable under Section 6.9.1.8.b.
Conditions Prior to Occurrence:
Mude 1 pcwer operation (100%)
Description of Occurrence:
It was determined at 1530 following a discussion with the onsite NRC inspector that a previous event, discovered on 8 July 1979 and evaluated not reportable, en-uld have been reported contrary to Techaical Specification 3.6.2.2 and reported under Section 6.9.1.8.b.
On 8 July 1979, in Mode 5, it was discovered that the level of the Na0H tank (BST-2) was being maintained at a volume greater than Technical Specification limit. Further investigation re-vealed that level transmitter BST-2-LT was calibrated with a zero reference point two (2) feet above the tank discharge. The usable volume provided by the additional two feet resulted in the level exceeding the limit. This event was not reported initially due to a misinterpretation of reporting requirements involving limiting conditions for operation and their applicable Mode requirements.
The event involving BST-2 was discovered and corrected before entering into the applicable Mode.
Designation of Apparent Cause:
The cause of this event is attributed to inadequate design. The existing design did not provide adequate indication of useable tank volume.
Analysis of Occurrence:
No effect upon the plant or general public. The level of BST-2 was brought to within specification limits prior to entering into Mode 4.
Corrective Action:
}9P} 2h[
Daily operating Surveillance Procedure, SP-300, was revised to in-clude an operating band requirement that will maintain the NaOH tank volume within the Technical Specification limits. In addition, re-sponsible personnel have been instructed in regard to the reporting requirements for events of this type. Future events will be evalu-ated in this regard and reported aoproprit.tely.
Supplementary Information 50-302/79-096/01T-0 Page 2 Failure Data: This is the first occurrence of this type reported.
/rc 1'O'
.