ML20207J592

Followup Ro:Listed fire-rated Assemblies Found Inoperable During Routine Surveillances in June 1986.Compensatory Fire Watches Established

ML20207J592
Person / Time
Site:	San Onofre
Issue date:	07/14/1986
From:	Morgan H SOUTHERN CALIFORNIA EDISON CO.
To:	Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
NUDOCS 8607290181
Download: ML20207J592 (5)

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SAN ONOFRE NUCLE AR GENER ATING STATION P. O. BOX 128 SAN CLEMENTE. CALIFORNIA 92672 H E. MORGAN TELEPHONE July 14, 1986

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~ cf a 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 - June 1986 San Onofre Nuclear Generating Station, Units 2 and 3

Reference:

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

dated June 12, 1986 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 June 1986.

Fire doors found inoperable during the May routine surveillances are identified in the Attachment and include: 11 latching mechanism failures and 10 closure mechanism failures. No doors were found blocked open in June. As each of these deficiencies was identified, ccnpensatory fire watches, pursuant to Technical Specification 3.7.9, Action Statement

'a', were established.

Door mechanism failures are being corrected on an "as found" basis.

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

The follow-up report covering inoperable fire doors identified in July 1986 will be submitted by August 15, 1986.

8607290181 860714 PDH ADOCK 05000361 1\\

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Mr. J. B. Martin.

1 If you require any additional information, please so advise.

i Sincerely, Nb Enclosure i

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F. R. Huey (USNRC Senior Resident Inspector, Units 1, 2 and 3) j U. S. Nuclear Regulatory Commission Document Control Desk

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Institute of Nuclear Power Operations (INPO) i I

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ATTACHMENT SOUTHERN CALIFORNIA EDISON COMPANY INOPERABLE FIRE D0 ORS FOR THE MONTH OF JUNE 1986 i

SAN ONOFRE NUCLEAR GENERATING STATION UNITS 2 AND 3, DOCKET NOS. 50-361 and 50-362 I.

Latching Mechanism Failures:

Number of doors inoperable - 11, as follows:

Door Number Inoperable Operable AR-305 02/22/86 AC-416 03/06/86 AC-44; 04/03/86 FH3-103 05/27/86 DG3-104 05/27/86 06/07/86 AR-502 06/01/86 06/17/86 AC-223 06/01/86 06/02/86 l

DG3-104 06/18/86 AC-213 06/18/86 AC-223 06/19/86 06/28/86 AR-301 06/21/86 t

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ATTACHMENT f

SOUTHERN CALIFORNIA EDIS0N COMPANY INOPERABLE FIRE DOORS FOR THE MONTH OF JUNE 1986 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 - 10, as follows:

Door Number Inoperable Operable FH3-404 05/02/86 06/04/86 AR-502 05/27/86 06/01/86 AC-442 06/04/86 06/24/86 AC-455 06/04/86 06/10/86 AC-417 06/04/86 06/10/86 AC-455 06/17/86 06/29/86 AC-417 06/18/86 FH3-404 06/18/86 06/21/86 AR-502 06/19/86 06/23/86 AC-442 06/25/86 t

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ATTACHMENT l

SOUTHERN CALIFORNIA EDISON COMPANY INOPERABLE FIRE DOORS FOR THE MONTH OF JUNE 1986 SAN ON0FRE NUCLEAR GENERATING STATION UNITS 2 AND 3, DOCKET NOS. 50-361 and 50-362 l

(Continued)

III. Doors Blocked Open:

Number of doors blocked open - None

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