ML18095A572

Special Rept 90-11:on 901026,two Fire Barrier Penetrations Impaired for More than 7 Days Due to Planned Maint.Hourly Roving Fire Watch Established

ML18095A572
Person / Time
Site:	Salem
Issue date:	10/31/1990
From:	LABRUNA S Public Service Enterprise Group
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
90-11, NUDOCS 9011130279
Download: ML18095A572 (3)

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Public Service Electric and Gas Company P.O. Box 236 Hancocks Bridge, New Jersey 08038 Salem Generating Station S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555

Dear Sir:

SALEM GENERATING STATION LICENSE NO. DPR-75 DOCKET NO. 50-311 UNIT NO. 2 SPECIAL REPORT 90-11 October -31,

• 1990 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 acccirdance with the reporting requirements of Technical Acti9n 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.

9011130279 901031 PDR ADOCK 05000311 S PNU MJP:pc Distribution

\-. The Energy People Sincerely yours, S. LaBruna General Manager -Salem Operations 95-2189 (10M) 12-89 UNIT 2 SPECIAL PLANT IDENTIFICATION:

Salem Generating Station -Unit 2

• Public Service Electric & Gas Company Hancock's Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

• Technical Specification 3.7.11 -Fire Barrier Impairment Repair > 7 Days Due to Planned Maintenance Discovery 09/26/90 Everit Date: 10/03/90 Report Date: 10/31/90 This report was initiated by Incident No.90-740. CONDITIONS PRI.OR TO OCCURREIJCE:

N/A DESCRIPTION OF OCCURRENCE:

This report addresses the planned impairment of fire barrier penetration seals. The impairments have lasted greater than seven {7)-daYs in support of the associated change work, therefore, a Special Report is required as per Technical Specification Action Statement 3.7.11.a.

The impairments are in support of design changes. Normally, the planning of design changes include*repair of impaired penetrations within seven (7) days. However, to fully support the specific design 6hange effort in this report), the subject penetrations could not be repaired within seven {7) days. On October 26, 1990, two (2) fire barrier penetrations were impaired (i.e., core bores) in support of design change work (i.s., DCF 2SC-2161).

One (1) penetration is located in the 100' El. Ul/2 Common Corridor (North and South) floor and the other penetration is iocated in the 84' El. Aisle #1 East Section east wall. An hourly roving fire watch had been established for the above fire areas. previously 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 penetrations (including cable penetration barriers, fire doors and fire dampers), in fire zone boundaries, protecting safety related areas shall be OPERABLE." Action Statement 3.7.11.a states: "With one (1) or more of the above required fire barrier penetrations inoperable, within one {1) hour either establish a continuous fire watch on at least one (1) side of the affected penetration, or verify the OPERABILITY of fire detectors on UNIT 2 SPECIAL REP0.90-11

--2-DESCRIPTION OF OCCURRENCE_: c_o_n_t_' least one (1) side of the inoperable fire barrier and establish an hourly fire, watch patrol. Restore the inoperable fire barrier penetration(s) to OPERABLE status within 7 days or, in lieu of any other report required by Specification 6.9.l, prepare and submit a Special Report to _the Commission

• pµrsuant to *specification

6.9.2 within

the next (30) days outlining tbe action taken, the cause of the inoperable penetration and plans and schedule for restoring the fire barrier penetration(s) to OPERABLE status." APPARENT CAUSE OF OCCURRENCE:

The root cause of the impairment of the fire penetration was to support design change work. ANALYSIS OF OCCURRENCE:

The functional integrity of the penetration fire barriers 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 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 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 impaired fire barriers once the impaitments were identified.

The subject areas contain fire detection equipment 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 ihvolved no undue risk to the health or safety of the public. CORRECTIVE ACTION: The repair of the penetrations was not accomplished within seven (7) days due to the time required to support the associated design change work. Upon completion of the design change work, the will be sealed. The hourly fire watch, as addressed in the Description of Occurrence section, will continue until all fire protection concerns associated with these areas are resolved.

MJP:pc SORC Mtg.90-149 General Manager -Salem Operations