ML18095A811

Special Rept:On 910211,910213 & 910217 Fire Barrier Impairments Greater than Seven Days in Support of Planned Work.Cause of Impairment of Fire Barrier Penetrations Was to Support Outage Related Activities

ML18095A811
Person / Time
Site:	Salem
Issue date:	03/20/1991
From:	Labruna S Public Service Enterprise Group
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9103260225
Download: ML18095A811 (4)

Text

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Public Service Electric and Ga.s Company P.O. Box 236 Ha.ncocks Bridge; New Jersey 08038 Salem Generating Station U. *s. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555

Dear Sir:

SALEM GENERATING STATION LICENSE NO. DPR-70 DOCKET NO. 50-272 UNIT NO. 1 SPECIAL REPORT 91-1 March 20, 1991 This Special Report addresses* fire barrier penetration.impairments which have not been restored to operable status within seven (7) days.

This report has been prepared in accordance with the reporting requirements of Technical Specification Action Statement 3.7.11.a pursuant to Technical Specification 6~9.2. It is being submitted within thirty (30) days as per the Action Statement.

MJP:pc Distribution Sincerely yours, s.. LaBruna General Manager -

Salem Operations

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9103260225 910320 PDR ADOCK 05000272 S

PDR 1)3i}d 95-2189 (10M) 12-89

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PLANT IDENTIFICATION:

Salem-Generating Station--Unit 1 Public Service Electric &*Gas Company

.*Hancock's Bridge, New Jersey 08038 IDENTIFICATION-OF OCCURRENCE:

Technical Specification 3.7.11; Fire Barriers Impaired For Greater Than Seven ( 7) *nays in Support of Planned Work Event Dates:

2/18/91, 2/20/91 and 2/24/91~

~eport Date:. 3/20/91

• This report was initiated by I~cident* Report 91-174.

CONDITIONS PRIOR TO OCCURRENCE:

Mode-5. (Cold Shutdown); 9th Refueling Outage DESCRIPTION OF OCCURRENCE:

Nos. 91:-094,91-114, in progress and As per Technical Specificatio~ iction Statement 3.7.11.a,* a Spe~ial Repo.rt is required when fire barrier penetration seals are impaired for greater than seven (7)*days.

This report.satisfies this requirement.

The subject fire barrier impairments were initiated in support of design changes and other outage activities. *Normally,' the planning of penetration impairments include repair of them within seven* (7) days.

However, to fully support the specific work effort (identified in this report), the subject penetrations could not be repaired within seven (7) days.

On February 11, 1991 and February 13, 1991 fire barrier penetrations.

. were impaired (4 penetrations each day) in support of outage related activities.

Also, on February 17, 1991, sixteen (16) additional penetrations were impaired in support of design change package lSC-2154. (Control Room Modifications).

These penetrations are located as f<;>llows:

Date of No. of Impairment Penetrations 2/~l/91 2

2/11/91 1

2/11/91 1

2/13/91 1

2/13/91 3

2/17/91 16 Purpose 11 S/G Tube Insp.

Run hoses for cleaning of room coolers S/G Eddy Current Testing Control Room Modifications Location

. *u-1 Relay Room 100' Corridor 7 8 ' Blee.* Pene. Area 100' Baling &

Storage.Area 100' Electrical Penetration Area

1. 1 Control Room

f

• • • • UNIT 1 *SPECIAL *REPORT..

1 **

DESCRIPTION OF OCCURRENCE:

(cont'd)

An hourly roving fire _watch had been previously established for the above fire areas due to other fire protection concerns.

Therefore, the requirements of Technical Specification Action Statement 3.7.11.a, were met.

Technical Specification 3.7.11 states:

"All fire penetrations *(including cable penetration barriers, fire doors and fire dampers), in fire zone boundaries, protecting safety related areas shall be functional."

Action Statement 3.7.11.a states:

"With one (1) or more of the above required fire barrier penetrations non-functional, within one hour either establish a continuous fire watch on at least one side of the affected penetration, or verify the OPERABILITY of fire detectors on at least one side of the non-functional fire ha~rier and establish an hourly fire watch patrol.

Restore the non-functional fire barrier penetration(s) to functional status within 7 days or, in lieu of any other report required by Specification 6.9.1, prepare and submit a Special Report to the Commission pursuant to Specification 6.9.2 within the next 30 days outlining the action taken, the cause of the non-functional penetration and plans and schedule for restoring the fire barrier penetration(s) to functional status."

APPARENT CAUSE OF OCCURRENCE:

The cause of the impairment of the fire barrier penetrations was to support outage related activities.

ANALYSIS OF OCCURRENCE:

The functional integrity of fire barrier penetrations ensures that fires will be confined or adequately retarded from spreading to adjacent portions of the facility.

This design feature minimizes the possibility of a single fire involving several areas of the facility.

The fire barrier penetration seals are a passive element in the facility fire protection program and are subject to periodic inspections.

This report satisfies the reporting requirements of Technical Specification Action Statement 3.7.11.a pursuant to Technical Specification 6.9.2 since the time between discovery and eventual repair of the fire barrier impairments is greater than seven (7) days.

Appropriate remedial actions were already in place in accordance with the requirements of Technical Specification Action Statement 3.7.11.a to establish an hourly roving fire watch patrol for the impaired fire barriers one~ the impairments were identified.

The subject fire areas contain detection devices in addition to the roving fire watch patrol.

Therefore, it is reasonable to assume that a fire in the areas would be detected before it could involve an adjacent area.

This occurrence therefore involved no undue risk to the health or safety of the public.

CORRECTIVE ACTION:

The repair of the penetrations was not accomplished within seven (7)

CORRECTIVE ACTION:

(cont'd) days due to the* time required -to support the associated design.*

change/outage activity work.

Upon completion* of work, t.he

• penetrations will.be sealed.

As of the issue of this. rep*ort, thirteen.(13) of the Control Room impairments have been resealed.

. The hourly fire watch, as addressed in the Description* of Occurrence section, will continue until all fire prot~ction concerns associate4.

• with these areas.are resolved.

• MJP:pc SORC Mtg.91-032 General Manager -

Salem Operations