ML20138Q969

Followup RO Re fire-rated Assemblies Found Inoperable During Routine Surveillances in Nov 1985.Compensatory Fire Watches Established.Continuing Corrective Actions to Upgrade Door Latches & Closure Mechanisms Cited

ML20138Q969
Person / Time
Site:	San Onofre
Issue date:	12/12/1985
From:	Morgan H SOUTHERN CALIFORNIA EDISON CO.
To:	Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
NUDOCS 8512300152
Download: ML20138Q969 (5)

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SAN ONOFRE NUC,L8'AR GENERATING STATION P. O BOX 128 SAN CLEMENTE, CALIFORNIA 92672 NCe O[/ h[! g H.E. MORGAN-TELEPHONE STAT 80N MANAGER

- (7141368 6241 December 12, 1985 U.S. Nuclear Regulatory Commission Office of Inspection and Enforcement Region V 1450 Maria Lane, Suite 210 Walnut Creek, California 94596-5368 Attention:

Mr. J. B. Martin, Regional Administrator

Subject:

Docket Nos. 50-361 and 50-362 Follow-up Report, Inoperable Fire Doors - November 1985 San Onofre Nuclear Generating Station, Units 2 and 3

Reference:

Letter, H. E. Morgan (SCE) to J. B. Martin (NRC),

dated November 13, 1985 In accordance with our referenced letter, this submittal provides the

. follow-up report of fire-rated assemblies (specifically fire doors) found inoperable during routine surveillances in November 1985.

Fire doors found inoperable during the November routine surveillances are identified in the Attachment and include 9 latching mechanism failures and 2 closure mechanism failures. No doors were found blocked open in November.

As each of these deficiencies was identified, compensatory fire watches, pursuant to Technical Specification 3.7.9, Action Statement 'a', were established. We are continuing previously reported corrective actions to

- upgrade door latches and closure mechanisms.

This monthly follow-up report and those sent previously provide updated information associated with an ongoing condition initiaily reported in 1983.

The follow-up report covering inoperable fire doors identified in December 1985 will be submitted by January 15, 1986.

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V Mr.'J. B. Martin If you require any additional information, please so advise.

Sincerely, Enclosure cc:

F. R. Huey (USNRC Senior Resident Inspector, Units 1, 2 and 3)

U. S. Nuclear Regulatory Commission

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Document Control Desk Institute of Nuclear Power Operations (INP0)

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y ATTACHMENT SOUTHERN CALIFORNIA EDISON COMPANY INOPERABLE FIRE D0 ORS FOR THE MONTH OF NOVEMBER 1985 SAN ON0FRE NUCLEAR GENERATING STATION UNITS 2 AND 3, DOCKET NOS. 50-361 and 50-362 I.

Latching Mechanism Failures:

. Number of doors inoperable - 9, as follows:

Door Number Inoperable Operable AR-301 10/24/85 AR-401 10/24/85 11/05/85 AC-442 10/28/85 11/09/85 AR-401 11/10/85 11/13/85 AC-442 11/15/85 11/21/85 AR-401 11/15/85 11/17/85 AR-401 11/20/85 FH3-103 11/24/85 AC-416 11/28/85 i

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y-ATTACHMENT SOUTHERN CALIFORNIA EDISON COMPANY IN0PERABLE FIRE DOORS FOR THE MONTH OF NOVEMBER 1985 SAN ONOFRE NUCLEAR GENERATING STATION UNITS 2 AND 3,' DOCKET NOS. 50-361 and 50-362 (Continued)

II. Closure Mechanism Failures:

Number of doors inoperable - 2, as follows:

Door Number Inoperable Operable AC-417 11/20/85 11/21/85 AC-455 11/21/85 11/25/85

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-ATTACHMENT SOUTHERN CALIFORNIA EDIS0N COMPANY INOPERABLE FIRE DOORS FOR THE MONTH OF NOVEMBER 1985 SAN 0N0FRE NUCLEAR GENERATING STATION

. UNITS 2 AND 3, DOCKET NOS. 50-361 and 50-362 (Continued)

III. Doors Blocked Open:

Number of doors blocked open - None A

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