ML19308D461
| ML19308D461 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 09/12/1977 |
| From: | Stewart W FLORIDA POWER CORP. |
| To: | |
| Shared Package | |
| ML19308D441 | List: |
| References | |
| NUDOCS 8002280773 | |
| Download: ML19308D461 (2) | |
Text
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,,sLEASE PRINT ALL RErufAE3 tNFC%*.1r.T:C' i
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tctNSE1 UCENSE EVENf I p*%
NAMg LCENSE NUMBER TYPE TYPE
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"' d# E[EEI DOCKEf NUMBER EVENT DATE REPCRT DAtE CATEGo4Y ty O 1 CONT l -l -j
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7 0 57 58 SS GO 61 68 69 74 - 75 EVENT DESCArPTION DE I in mode 1 operation, the Reactor sutiains was purged for 5 minutes unmonitored contrary 7 89 g l to E.T.S. 2.4.2.G and S.T.S. 3.3.2.1, Table 3. 3-4, Redundsmcy N/A. Second occurrence as 7 89 g l reported by LER 77-74E of 26 July 1977.
Upon discovery the purge was terminated inanediately 7 8s 0
[ and RM-Al restored operable.
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@l (LER 77-105E) 7 89 i
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- 8 Q [ Failure to ascertain operability of rionitor operation prior to initiating Reactor Building -i 7 89 t:
Q l purge as required by operating procedure.
A more stringent adherence to procedure will be 7 89 s
lfollowed to preclude recurrence.
3o 9eaatnv METH00 OF Sverus
% POWER 07HEA STATUS Or5COVERY CIScCVEnv DESOAinTUN lEl l 1l 0l 0 l l
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conrENr N!'.EA5 D Of NtLtJ.5E AMOUNT of ACTMTV LOCATCN OF MLEASE 12 C
y l3.39 x 104 uci nobin gas]
l Reactor Building vent to at:nospherc 7 o 9
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PERSONNEL EXPOSUAES htlMGER TYPE OFSCAIATCN
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l 7 89 11 12 eC OFF$ RTE CONSECUENCE3 gl NA 7 89 6-LOSS OR DAMAGE TO FACluTY TY PE DESCRPTCN 3dl NA 7 0D 10 s-PUSUC1TY gl NA 7 09
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0228o 773 ADDITICNAL FACTORS i
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pnant: 813/866-4159 NAME
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SUPPLEMENTARY INFORMATION 1.
Report No.:
50-302/77-105E 2.
Facility:
Crystal River Unit #3 3.
Paport Date:
12 Septenber 1977 4.
Occurrence Date:
1 September 1977 (discovered 2 September 1977) 5.
Identification of Occurrence:
An unmonitored Reactor Buildi tg purge contrary to Environmental Technical Specitication 2.4.2.G and Standard Technical Specification 3.3.2.1, Table 3. 3-4.
j 6.
Conditions Prior to Occurrence:
Mode 1 power operation.
.)
7.
Description of Occurrenec:
3 At 1700 a purge of the Reactor Building was started with radiation monitor RMA1 sampling pump inoperabla. This constituted an ugmonitored radioactive release for a period of 5 minutes, at a release rate of 1.13x10' microcuries per second.
Upon discovery of the inoperable monitor, the purge uns terminated immediately and RM-Al restored operable.
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VDesignation of Apparent-Cause:
The cause of this event was the failure to escartain operability of monitor operation prior to starting the purge as required by Operating Procedure OP-417.
9.
Analysis of Occurrence l
There was no safety hazard to the plant or public based upon known activity in the J
Reactor Building prior to purging.
- 10. Corrective Action:
Discussed OP-417 purge requirements with all personnel concerned and a more stringent adherence to Procedures will be followed. OP-417 has been changed to require a visual confirmation of RM-Al operability before initiating a Reactor Building purge.
11.
Failure Data:
This was the second occurrence of this event as reported by LER 77-74E dated 26 July 1977.
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