05000322/LER-1986-002, :on 860124,hourly Fire Watch Patrol Late by 13 Minutes for LPCI MG Set Room 11.Caused by Malfunctioning Door Preventing Access to Room.Door Repaired

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:on 860124,hourly Fire Watch Patrol Late by 13 Minutes for LPCI MG Set Room 11.Caused by Malfunctioning Door Preventing Access to Room.Door Repaired
ML20137V205
Person / Time
Site: Shoreham File:Long Island Lighting Company icon.png
Issue date: 02/11/1986
From: Grunseich R
LONG ISLAND LIGHTING CO.
To:
Shared Package
ML20137V184 List:
References
LER-86-002, LER-86-2, NUDOCS 8602190473
Download: ML20137V205 (2)
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LER-1986-002, on 860124,hourly Fire Watch Patrol Late by 13 Minutes for LPCI MG Set Room 11.Caused by Malfunctioning Door Preventing Access to Room.Door Repaired
Event date:
Report date:
3221986002R00 - NRC Website
v • d • e

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UCENSEE EVENT REPORT (LER)

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On January 24, l'386 an hourly firewatch patrol receired by Technica1 Soecification sections 3.7.8.a and 3.3.7.9.a was lata by thirteen (13) minutes for the LPCI MG 5et Room 111 due to a

malfunctioning door which presented access to the room.

The plant was in Operational Condition 5 with the mode switch in shutdown during an outage and all control rods inserted in the Immediate corrective action was to force the door open to oermit access to the room.

Forcing the door ooen resulted in core.

damage to the door latch mechanista.

Subs 7quently, the door was repaired ut il izing an aooroved Maintenance Work Request.

LERs85-002, 85-004,85-007, 85-014 and 85-028 also discussed related events with firewatches.

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On January 24, 1986 an hourly firewatch required by Technical Specification sections 3.7.8.a and 3.3.7.9.a was late by thirteen (13) minutes for the LpCI MG Set Room 111.

The plant was in Operational Condition 5 with the mode switch in shutdown during an outage #nd all control rods inserted in the core.

Fire rated assemblies in the room were inocerable, requiring the hourly firewatch patrols.

A firewatch patro! had been accomplished for the room at 1722 and therefore, was required again by 1822.

However, due to a problem with the latch mechanism (which prevented the opening of the door) on the door leading into the LPCI MG Set Room

111, the firewatch patrol could not gain entry into the area requiring the patrol.

By the time the door was forced

open, the required patrol was. thirt een (13) minutes late (1835).

All other firewatch patrols were completed within the proper time frame.

An approved Maintenance Work Request was generated ano the door was reoaired.

There is no safety significance to this event.

The firewatches were maintained throughout this period, and even though one was

late,

.a fire would have been detected.

Also, as described in Supplement 5 and 6 to the Safety Evaluation Report for Phase.IV (Low power testing up to SY.),

the NRC has determined that there will be no radiological consequences for the event analyzed in Chapter 15 of the FSAR.

Since these evepts bound any event caused by a fire in the area in question, there could be no risk to the public health and safety.

LERs85-002, 85-004,85-007, 85-014 and 85-028 also discussed i

related event s with firewatches.

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