ML19309F478

LER 80-016/01T-0:on 800401,inadvertent Actuation of Fire Svc Deluge Sys Resulted in Damage to Auxiliary Bldg Ventilation Exhaust Filter AHFL-2A.Caused by Personnel Error During Reset of Fire Svc Panel alarm.AHFL-2A Media Replaced

ML19309F478
Person / Time
Site:	Crystal River
Issue date:	04/08/1980
From:	Lancaster K FLORIDA POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19309F462	List: ML19309F461 ML19309F478
References
LER-80-016-01T, LER-80-16-1T, NUDOCS 8004290488
Download: ML19309F478 (2)

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SUPPLEMENTARY INFORMATI0E4 Report No.: 50-302/80-016/0lT-0 Facility: Crystal River Unit #3 Report Date: 8 April 1980 i

4 Occurrence Date: 1 April 1980 Identification of Occurrence:

Damage to Auxildt ry Building Ventilation Exhaust Filter in' excess of two-tb>usand ($2,000) dollars. This event is re-portable under .0 CFR 20.403.b(4).

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Conditions Prior to Occurrence:

Mode 5, cold shutdown.

Description of Occurrence:

At 1145 it was discovered that damage to Auxiliary Building Ventilation Exhaust Filter AHFL-2A had occurred as a result of an actuation of the Fire Service Deluge System. Estimated cost of filter replacement is two-thousand seven hundred fifty dollars

($2,750). Further investigation revealed that the deluge trip mechanism was actuated as a result of a water hammer in the system caused by the inadvertent initiation of the Fire Service Water Curtain System while attempting to reset a fire service panel alarm.

Designation of Apparent Cause:

The cause of this event is attributed to personnel error.

i Analysis of Occurrence:

No threat to the health and safety of the plant staff or public.

Auxiliary Building exhaust ventilation was shifted to AHFL-2B at 1300. Samples of water washed through the filters into the Auxiliary Building drain system revealed concentrations of activity less than the limits imposed by 10 CFR 20.

1 Corrective Action:

A review of this event has been conducted with the responsible section to prevent recurrence. In addition, protective covers will be installed over the Fire Service System actuation push-

! buttons on the Fire Service System alarm panel.

Failure Data:

[ This is the first occurrence of this type reported.

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