ML19308D517
| ML19308D517 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 08/08/1977 |
| From: | Stewart W FLORIDA POWER CORP. |
| To: | |
| Shared Package | |
| ML19308D516 | List: |
| References | |
| NUDOCS 8002280832 | |
| Download: ML19308D517 (2) | |
Text
'
LICENSEE EVENT scn.m i -'" '"
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L 2ASE PRINT ALL REnUIRE3 INFCRA1AT!:l:.~d) g H.
't'Ao ucE~SE ~uo.E.
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[l F l L l'C l R l P l 3 l l0l0l-l0l0l0l0l0l-l0l0l l 4 l 1 l1 l1 l1 l l0l3l Y'^ 8 9 14 15 25 26 30 31 32 TYPE NH$E QCCKET NUMBEA EVENT CATE AEPoAT CATE CATEccRY hCONT l l.l lLl l 0 l 5 l 0 l-l 0 l 3 l 0 l 2 l l0 l7 II l5 l7 l7 l l0 l8 l0 l8 l 7l 7l 7 8 57 58 59 60 61 68 69 74 75 80 EVENT DESCRIPTION
[During the performance of the normal testing sequence of the Reactor Building charcoal fil}-
o ter bank, the methyl Iodine removal efficiency was determined to be less than 99% con-
- j 7
c3 7 89 90 g l trary to Tech Spec 3.6.4.2.
Redundancy NA.
First time occurrence. The filter bank l
7 89 80 g l will 'oe restored operable on 10 August 1977 after completion of final testing.
l 7 89 EO gl (LER 77-85) l 50 7 89 pm,it SEE" cc"c'[
couPoNENT CCCE SUPRAR ACTUMA VOLATCN O
l Sl Cl g lF lI lL lT l E l Rl lNl lF l0 l3 l0 l lNl 7 89 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION 9
e l The presence of site flue gases and air pollutants deteriorate the charcoal and its lf 7 89 50 09 l impregnaat. The charcoal was replaced on 6 August 1977.
l 7 89 60 l
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'sEl eTwEn STATUS C CCVE Y CEiCoVERY CESCRPECN l.s PowEn0l 9l 9l lNA l
lBl l-NA l
lE l 7O 9
10 12 13 44 45 46 80
$ESSEEo oYEAsE l AucuNT c7 ACTonTY LCCATCN oF AELEASE W
lZl NA l
l NA l
12 7 8 9
10 11 44 45 80 PERSONNEL EXPOSURES NUMBEA TYPE DESCAPTON 1
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NA l
7 89 11 12 13 60 PERSONNEL INJURIES NUMBER CEScRPTON l 0l 01 0l l
NA l
1 14 7 89 11 12 60 OFFSITE CONSEQUENCES
]E l NA l
7 89 80 LOSS GR OAMAGE TO FAC:LITY TYPE CESCRPTCN Q]
l NA l
7 89 10 LO PUSUC!TY NA l
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'O 7 89 ACOlTIONAL FACTORS g Q Q 2 2 8 ()
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SEE ATTACHED SUP,PLEMENTARY INFORMATION I
W. P. Stewart 813/866-4159 NAME:
PHONE:
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p SUPPLEMENTARY IN M RMATION 1.
Report No.:
50-302/77-85 2.
Facility:
Crystal River Unit #3 3.
Report Date:
8 August 1977 4
4.
Occurrence Date:
15 July 1977 5.
Identification of Occurrence:
The Reactor Building charcoal efficiency was less than 99% methyl Iodine removal contrary to Technical Specification 3.6.4.2.
6.
Conditions Prior to Occurrence:
Mode 1 power operation 7.
Description of Occurrence:
At 1000 when performing the normal testing sequence of charcoal filter bank AHFL-1, f
the methyl Iodine removal efficiency was determined to be less than 99%. The 30 day action statement of Technical Specification 3.6.4.2 was entered. The charcoal was renewed on 6 August 1977 and will be restored operable upon final testing.
8.
Designation of Apparent Cause:
The flue gases and other site airborne pollutants deteriorate the charcoal and its impregnant.
9.
Analysis of Occurrence:
There was no safety hazard to the plant or public.
10.
Corrective Action:
The charcoal was replaced on 6 August 1977.
11.
Failure Data:
This was the first occurrence of this event.
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