ML18096A702

Special Rept 92-2-1:on 920324,0414,15 & 25,fire Barriers Impaired for More than 7 Days to Support Planned Work in SW Sys,Sw Project Support & SW Pipe Replacement.Hourly Fire Watch Will Continue Until All Concerns Resolved

ML18096A702
Person / Time
Site:	Salem
Issue date:	05/11/1992
From:	Vondra C Public Service Enterprise Group
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
92-2-1, NUDOCS 9205190007
Download: ML18096A702 (5)

Text

Public Service Electric and Gas Company P.O. Box 236 Hancocks Bridge, New Jersey 08038 Salem Generating Station May 11, 1992

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 92-2-1 This supplemental report addresses additional fire barrier impairments which had not been restored to functional 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 required.

Sincerely yours,

c. A. Vondra General Manager -

Salem Operations MJP:pc Distribution

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'. UNIT 1 SPECIAL REPORT 92-2-1 PLANT IDENTIFICATION:

• Salem Generating Station - Unit 1 Pubiic 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) Days in Support of Planned Work

• Event Dates: 3/24/92, 4/14/92,* 4/15/92 _and 4/25/92 .I R~~ort Date: *5/11/92 This report was initiated by Incident Report Nos.92-190, 92-229,92-233 and 92-257. It is a revision to Special Report 272/92-2 which.

includes additional Unit 1 penetration seals inoper?ble for greater than seven {7) .days in support of the tenth refueling outage.

CONDITIONS PRIOR TO OCCURRENCE:

3/17/92: Mode 1 Reactor Power 100% - Unit Load 1160 MWe 4/07/92: Mode 5 {Cold Shutdown); *10th Refueling Outage in progress 4/08/92: .Mode. 6 *{Refueling) 4/18/92: Mode 6 DESCRIPTION OF OCCURRENCE:

.Per Technical Specification Action Statement 3.7.11.a, a Special Report is required when fire barrier penetration seals are impaired for greater than seven (7) days~ This report satisfies this

. _requirement.

~he subject fire barrier impairments were initiated to support design changes and other Salem Unit 1 outage activities. Normally, the planning of penetration impairments includes repair within seven (7) .

I days. However, to support the work identified in this report, the penetrations could not be repaired within seven (?)days.

On March 17, 1992, two (2) fire barrier penetrations were impaired in support of Service Water System modifications . . on April 7, 1992, ten (10) fire barrier penetration seals were impaired a~so in support of Service Water System modifications. On April 8,:1992, thirty-four .

• c 34) fire barrier penetration seals were impaired in support of Service Water system pipe replacement for the Auxiliary Building Room Coolers. On April. 18, 1992~ one (1) fire barrier penetration seal was impaired to support Room Cooler cleaning. These penetrations are located as follows:

Date of No. of Purpose Location*

Impairment Penetrations 3/17/92 1 SW System* 122 1 El. Aux. Bldg.

Modifications Boric Acid Tank Room Floor Plate

UNIT 1 SPECIAL REPORT 92-2-1

• DESCRIPTION OF OCCURRENCE: (cont'd)

Date of No. of Purpose Location Impairment Penetrations 1 84' El. Aux. Bldg.

cont. spray Pump, Tank Area Floor Piate

• 4/7/92 10 SW project support 78' El. Mechanical Penetrations to containment.

4/8/92 1 SW pipe replacement #12 RHR Pump Room 4 Laundry, Shower, . &

Chemical Pump &

Tank Room 2 Nos. 11 & 12 Safet~

Injection Pump Room 1 Equipment Hatch -

122 1 El.

1 Equipment Hatch -

'100 1 El.

1 Equipment Hatch -

84 1 El.

1 Equipment Hatch -

64 I El.

2 #11 Comp. Cooling .

Heat Exch. & Pump Room 3 #11 & 12 Cont.

Spray-Pumps & Spray Add. *Tank 4 ~4' Valve Alley 7 * * #12 Comp. Cooling Heat Exch. & Pump Room 1 #11 & 12 Safety Injection Pump Room 2 64 1 Aisle #1 1 Water Recirculation Heater Room

. UNIT 1 SPECIAL REPORT 92-2-1 DESCRIPTION OF OCCURRENCE: (cont'd)

• Date of No. of Purpose Location Impairment* Penetrations

1. 64 1 Lobby 1 84 1 Elevator Lobby 4/25/92 1 Room Cooler Work 100 1 Baling &

Storage Area An hourly roving fire watch was previously established for the

• above fire areas due to other fire.protection concerns.

Therefore, the requirements of *Technical Specification 3.7.11 Action "a", were met~

Technical Specification 3.7.11.states:

"All fire penetrati9ns (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 nori-functional; 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 at least one (1) side. of the non-functional fire barrier and es~ablish 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 fire barrier penetration impairments is to support o~tage r~lated 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 de~ign 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 reporting requirements of Technical Specification Action statement 3.7.11.a, pursuant to Technical Specification 6.9.2 since the time between impairment and eventual repair of the fire barrier penetrations is greater than seven

'A **

UNIT 1 SPECIAL REPORT 92,..2-1 *

• J ' ANALYSIS OF OCCURRENCE: Ccont'dl (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 impaired fire barriers.

The subject fire areas contain detection devices in addition to the roving fire watch patrol. Therefore, a fire in the areas should 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 pranned impaired penetrations was not accompiished ,

within seven (7) days due to the time required to complete work. The penetrations will be sealed upon completion*of associated work.

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.

IZ~

General Manager -

Salem Operations MJP:pc SORC Mtg.92-058