ML18096A567

Special Rept 92-1:on 920223,fire Barriers Found Impaired for Greater than Seven Days.Caused by Equipment Failure.Fire Door Will Be Replaced Upon Receipt of New Door

ML18096A567
Person / Time
Site:	Salem
Issue date:	03/12/1992
From:	Vondra C Public Service Enterprise Group
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
92-1, NUDOCS 9203200042
Download: ML18096A567 (4)

Text

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PS~G *

• Public Service Electric and Gas Company P.O. Box 236 Hancock; Bridgs. New Jersey 08038 Salem Generating Station March '12; 1992 U. S. N~clear Regulatory Commission Document Control Desk Washington, DC 20555

Dear Sir:

SALEM GENERATING STATION LICENSE NO. DPR-70 DOCKET NO. 50-272 UNIT NO. 1 SPE.C-IAL REPORT 92-1 This report addresses a fire barrieJ* i~pairment which had not been resto~ed to functi6nal status witbjn seven (7) days. This report ha£ been .prep~red ih ac~ordance ~ith the reporting requiiements of Technical Specification.Actio~ Statement 3.7.11.a purstiant to Te~hnical Specification 6.9.2. It is b2ing submitted within thirty (30) days as requiied.

• Sincerely yours,

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C. A. Vondra General Manager -

Salem Operations MJP:pc Distribution 9203200042 920312 PDR ADOCK 05000272 S PDR

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ti' UNIT 1 SPECIAL REPORT.-1 PL!i,J:iT_ I_pENTIFICATION:

Salem Generatin¢ Station - Unit 1 Public Service Electric & Gas Co~pany Hancock's Bridge, ~ew Jer~ey 08038 Il!J:~JIF_I_C:l>TJON___ 9F_ OCC_URRENCE:

Technical Specification 3.7.11; Fire Barriers Impaired For Greater Than Seven (7) Days Event Dates: 2/23/92 Report Date: 3/12/92 This report was initiated by Incident Report No.92-111.

CONDITIONS

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* -- --** ~ -

PRIOR

. TO. OCCURRENCE:

Mode 1 Reactor Power 100% - Unit Load 1155 MWe DESCRI~r~o~ OF OCCURRENCE:

Per Technical Specttication ~ction Statement 3.7.11.a, a Special Report is required when fire barrier penetrations are impaired for greater than seven (7) days. This report satjsfies this requirewent.

On February 16, 1992, during normal power operation, the fire door between the 100' Elevation Mechanical Penetration Area and the Auxiliary Building was found impaired by a roving fire watch during patrol. The door's hinge screws were broken causing misalignment of the door. The door could not adequately close and latch. Therefore, it was declared inoperable and Techni~al Specification 3.7.11 Action "a" was applied.

Detail~d inspection revealed that the internal hinge plate welds were broken and the internal frame was loose. It was determined to replace the door. *A new door was ordered; however, it was not received within the seven (7) day Technical Specification Action Statement time constraint.

An hourly rovi-ng fire watch had previously been established for the fire door (see Apparent Cause of Occurrence section); therefore, the requir~ments of Technical Specification A~tion 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 (1) hour either establish a continuous fire watch on at least one (1) side* of

UNIT 1 SPECIAL REPORT * - 1 P_E§~R.f_PTION ___OF _QC CURRENCE:

(cont'd) the affected penetration, or verify the OPERABILITY of fire detectors on at least one (1) side of the non-functional fire barrier and establish an hourly fi~e watch patrol. R~store the non-functional

~ire barrier penet~ation(s) to iunctional status within 7 days or, in lieu of any other report reqGired by Specification 6.9.1-, pr~pare and submit a Sp-ecial 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 door not-being returned to a functional condition is equipment failure. The damage was such that door replacement was necessary. A replacement door was ordered since these doors are not a stock it~m. It was not received withj_n seven (7) day~ to satisfy the Technical Specification Action Statement.

Inv~stigation identified that this door is found non-functional at least once each year. The door is ~art of a high traffic pattern.

Additionally, the Auxiliary Building is maintained at negative pressure. Doors *such as this, which access the Auxiliary Building, tend to-close "hard" promoting a potentially higher failure rate.

The concern for contihued functional reliability of these doors has been previously identified. Until the ventilation concerns aie resolved, PSE&G has committed to maintaining an hourly fire watch rove for all subject fire do9rs (i.e., reference response to NRC Inspection Report 272/90-01)

ANALY~._IS OF,_ oc_<;l!RRENCE:

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. Fire doors are a passive element in the facility fire protection program and are subject to periodic inspections. This report s~tisfies 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 door im~airment is greater than seven (7) days. Appropriate remedial actions were 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 once the impairments were identified.

The subject fire areas contain detection devices in addition to the roving fire watch patrol. A fire in the area~ would be detected before it could involve an adjacent aiea. Thi~ occurrence, therefore, involved no undue risk to the health or safety of the public.

CQRJ~--~_\:TI_Y0__ACTION:

The repair of the impaired fire door was not accomplished within seven (7) days as discussed previously. The fire door will be replaced upon receipt of the new door.

UNIT 1. SPECIAL REPORT--1 .

~O~RE_<;TIVE ACTION: _(cont I a)

The concern for continued functional reliability of the subject fire doors has been previously_identified. Implementation of c6rrective action, as committed to in PSE&G's response to NRC inspection Repo~t 272/90-01, is coniinuing.

Actions have been initiat~d to establish folio stock numbers for replacement fire doors and to maintain replacement doors in stock.

The hourly fire watch will continue until the ventilation concerns, associated with the Auxiliary Building, are resolved.

/J/& , '

• j/ r} v; oL?~._

. General Manager ~/!_

Salem Operations MJP:pc SORC Mtg.92-031