ML18096A423
| ML18096A423 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 01/09/1992 |
| From: | Vondra C Public Service Enterprise Group |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| 91-3, NUDOCS 9201130199 | |
| Download: ML18096A423 (4) | |
Text
Public Service Electric and Gas Company P.O. Box 236 Hancocks 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-75 DOCKET NO. 50-311 UNIT NO. 2 SPECIAL REPORT 91-3 January 9, 1992 This report addresses fire barrier penetration seal impairments which have not been restored to functional status within seven (7) days.
These penetrations have been impaired in support of planned work.
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.
MJP:pc Distribution 9201130199 920109 PDR ADOCK 050003~1 S.
PDR ThE En21gy_ People 9 d..o //-30;9 ~
Sincerely yours, C. A. Vondra General Manager -
Salem Operations 95-2189 (10M) 12-89
UNIT 2 SPECIAL REPORT *-3 Salem Generating Station - Unit 2 Public Service Electric & Gas Company Hancock's Bridge, New Jersey 08038 IDENTIFICATION OF OCCVRRENCE:
Technical Speci1ication 3.7.11; Fire Barriers Impaired For Greater Than Seven (7) Days in Support of Planned Work Event Dates:
12/10/91, 12/26/91, and 12/27/91 Report Date:
1/9/92 This report was initiated by Incident Report Nos.91-881, 91-922, and 91-924.
CONDITIONS PRIOR TO OCCURRENCE:
Mode 5 (Cold Shutdown}; Gth Refueling Outage in progress 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 gr~ater 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 includes their repair within seven (7) days.
However, to fully support the work identified in this report, the penetrations could not be repaired within seven (7) days.
Between December 3, 1991 and December 9, 1991, ten (10) fire barrier penetrations were impaired in support of design change package 2EC-3043 (Service Water Pipe Replacement).
Between December 19, 1991 and December 28, 1991 twenty-three (23) penetrations were impaired in support of design change package 2EC-3041 (Service Water Pipe Replacement).
On December 20, 1991, two (2) penetrations were impaired to support routing cables in support of Service Water modifications.
These penetrations are located as follows:
Date of No. of Imp~~rment Penetrations 12/3/91 12/19/91 10 4
6 4
4 1
2 DCP 2EC-3043 DCP 2EC-3041 Location u-2 78' Mech. Perie.
Area/Containment U-2 84 *- Valve Alley 22 Component Cooling Pump Area U-2 64' Storage Area 21 & 22 SI Pump Room 22 RHR Pump Room 21 & 22 Cont. Spray Pumps Area
UNIT 2 SPECIAL REPORT.-3
- DESCRIPTION OF OCCURREN_C_E~=~~(_c_o_n_t_'_d~}
Date of No. of Impairment Penetrations 2
DCP 2EC-3041 21 Component Cooling Pump Area 12/20/91 2
SW Support El. 122 Floor Plates; Boric Acid Transfer Pump Area 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 OPERABLE."
Action Statement 3.7.11.a states:
"With one (1) or more of the.above required fire barrier pen*etrations 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 at least one {1}.side of the inoperable fire barrier and establish an hourly fire ~atch patrol.
Restore the inoperable fire barrier penetration(s} to OPERABLE status within 7 days or, in lieu of any other report required by Specification 6.9.1, prepare and submit a Special Report to the Commission pursuant to Specification 6.9.2 within th~ next (30) days outlining the 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 cause of the f i~e barrier penetration impairments.is to support outage related *activities.
ANALYSIS OF OCCURRENCE:
The functional integrity of fire barrie~ penetratioris 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 facil{ty 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 discovery and eventual repair of the fire barrier impairments is greater than seven (7) days.
Appropriate remedial actions were already in place in
UNIT 2 SPECIAL REPORTtt--3
- 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.
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 penetrations was not accomplished within seven (7) days due to the time required to support the associated design change/outage activity work.
Upon completion of work, the p~netrations 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.92-003 a~
General Manager -
Salem Operations