05000220/LER-1980-019-04, /04T-0:on 800827,during NRC Insp at Normal Operation,Discovered Removable Bottom Door Seals of Outer Door of Reactor Bldg Track Bay Were Not Installed Properly. Caused by Personnel Error

/04T-0:on 800827,during NRC Insp at Normal Operation,Discovered Removable Bottom Door Seals of Outer Door of Reactor Bldg Track Bay Were Not Installed Properly. Caused by Personnel Error

ML18037A289
Person / Time
Site:	Nine Mile Point
Issue date:	09/09/1980
From:	Harrison P NIAGARA MOHAWK POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML18037A288	List: 05000220/LER-1980-019, Forwards LER 80-019/04T-0 05000220/LER-1980-019-04, /04T-0:on 800827,during NRC Insp at Normal Operation,Discovered Removable Bottom Door Seals of Outer Door of Reactor Bldg Track Bay Were Not Installed Properly. Caused by Personnel Error
References
LER-80-019-04T, LER-80-19-4T, NUDOCS 8009180278
Download: ML18037A289 (4)

LER-1980-019, /04T-0:on 800827,during NRC Insp at Normal Operation,Discovered Removable Bottom Door Seals of Outer Door of Reactor Bldg Track Bay Were Not Installed Properly. Caused by Personnel Error

Event date:
Report date:
2201980019R04 - NRC Website

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EVENT DESCRIPTION AND PROBABLE CONSEQUENCES During normal operation an NRC inspector observed light shining through an apparent gap under the outer door of the Reactor building track bay.

Immediate investigation by station management and the Inspector revealed that the removable bottom door seals had not properly been installed after the last closure of the door.

At the time, the inner door of the track bay was open;

thus, secondary containment integrity was dependent upon the outer door.

However, since the reactor was at steady state operation during this time period, there was no apparent effect on the environment.

CAUSE DESCRIPTION AND CORRECTIVE ACTIONS In order to ensure secondary containment integrity, the inner track bay door was promptly closed and action was initiated to properly install the outer door seals.

Failure to properly install the seals was a

procedural violation, and thus the procedure was subsequently reviewed with the personnel involved with the incident as well as with other persons who may have cause for its use in the future.

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