View source for 05000281/LER-1980-010, Updated LER 80-010/01X-1:on 800721,containment Gaseous & Particulate Radiation Monitor Found to Have One Automatic Function Incapable of Operating During Fuel Movement.Caused by Bypass of Containment Exhaust Fan Relay in Design

{{Adams
| number = ML20062M670
| issue date = 08/13/1982
| title = Updated LER 80-010/01X-1:on 800721,containment Gaseous & Particulate Radiation Monitor Found to Have One Automatic Function Incapable of Operating During Fuel Movement.Caused by Bypass of Containment Exhaust Fan Relay in Design Change
| author name = Wilson J
| author affiliation = VIRGINIA POWER (VIRGINIA ELECTRIC &amp; POWER CO.)
| addressee name = 
| addressee affiliation = NRC OFFICE OF INSPECTION &amp; ENFORCEMENT (IE REGION II)
| docket = 05000281
| license number = 
| contact person = 
| document report number = LER-80-010-01X, LER-80-10-1X, NUDOCS 8208200169
| package number = ML20062M564
| document type = LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT
| page count = 2
}}
{{LER
| Title = Updated LER 80-010/01X-1:on 800721,containment Gaseous & Particulate Radiation Monitor Found to Have One Automatic Function Incapable of Operating During Fuel Movement.Caused by Bypass of Containment Exhaust Fan Relay in Design Change
| Plant = 
| Reporting criterion = 
| Power level = 
| Mode = 
| Docket = 05000281
| LER year = 2080
| LER number = 10
| LER revision = 
| Event date = 
| Report date = 
| ENS = 
| abstract = 
}}

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UPDATE REPORT -MIEVIOUS REPORT DATE 08-01-80 NRC FORM 3:0                                                                                                                  U. S. NUCLEAR REGULATORY COMMIS$10N
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DATE 8                    W            68                COCKET NUMBER                                 E VENT DATE EVENT OESCRIPTION ANO PROBABLE CONSEOUENCES
_.les:tl The containment gaseous and particulate radiation monitor was found to have one                                                                                         l_,
    , o 4, , j of its automatic functions incapable of operating during the required period                                                                                        i 10 # 4 l l during fuel movement.                                  This might not have caused the containment puree exhaust                                                     I l o i s t I fans to shut off automatically if a fuel handline accident in contninment had                                                                                      1
[TTirl I occurred. Iloweve r,                                the containment purge isolation valves 'would have closed, if-                                                    I      ,
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l o 171 1 needed.                  This event is reportable in accordance with T.S. No.                                                    6. 6. 2. n. (1) .         The
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l i 101 1 The containment exhaust fan power isol ation relay was bvonssed in anticination of                                                                                   I li    3 # l the Design Change , the chance was approved hv the Safety Committee. but not                                                                                      I g,62; l released by Project Engineer.                                          Administrative controls were established to secure                                              I l
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  /. y                    UPDATE REPORT - PREVIOUS REPORT DATE 08-01-80 ATTACHMENT 1 SURRY POWER STATION, UNIT NO. 2 DOCKET NO:      50-281 REPORT NO:      80-010/0lX-1 EVENT DATE:     07-21-80 TITLE OF REPORT:    AUTOMATIC ISOLATION OF CONTAINMENT PURGE EXHAUST FAN DUE TO RADIATION MONITOR ALARM
: 1. Descrintion of Event:
While moving r6dioactive trash near room RMS 260, the monitor alarmed, causing containment purge to be tripped. All MOV's and supply fans tripped properly, but the purge exhaust fan did not trip. Retested operation with same results.
Ran test in Unit 1 with same result. This event is reportable in accordance with T.S. No. 6.6.2.a(1).
: 2. Probable Consequences and Status of Redundant Systems:
MOV's closed properly, thus if a fuel handling accident had occurred in containment , the isolation valve would prevent spread of contamination.
Possible consequence would be overheating of fan if fan was no, turned off manually. Unit 1 has been operating at power and no fuel handling had been performed.
: 3. Cause of the Event:
The Containment Purge Exhaust Fan power relay shown on drawing-11448-ESK-68H was bypassed as shown in Wiring Diagram 12846.21-EKS-76-1 during the .
accomplishment of Design Change 76-14B. The relay leads were lifted in.
anticipation of procedure 12 of Design Change 78-S34A. This procedure-prepared Fans 1-VS-F-5A and B (purge exhaust fans in unit 1 and unit 2) for removal during the accomplishment of " Auxiliary Ventilation Modification".
Design Change 78-S34A was approved by the Safety Committee, but was'not released by the Project Engineer _ in Richmond.
: 4. Immediate Corrective Action:
Established administrative controls to manually secure fan if necessary.-
No corrective action was .taken pending decisien of Project ' Engineer on j          Procedure-12-of Design Change DC-78-S34A.
: 5. Subsequent Corrective Action:
A request to change the Technical Specifications has been submitted to the, NRC. This change reflects the changes accomplished. in Design Change 78-S34.
: 6. Future Corrective Action:
Not' applicable.
: 7. Generic Implications:
Not applicable.
                                                                                     .
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