ML20210S805

Followup RO Re fire-rated Assemblies (Fire Doors) Found Inoperable During Routine Surveillances in Dec 1986. Inoperable Fire Doors Include Five Latching Mechanism & Three Closure Mechanism Failures.Next Rept by 870216

ML20210S805
Person / Time
Site:	San Onofre
Issue date:	01/12/1987
From:	Morgan H SOUTHERN CALIFORNIA EDISON CO.
To:	Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
TAC-54814, TAC-54815, NUDOCS 8702170711
Download: ML20210S805 (3)

Text

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-c fdY Southern California Edison Company SAN ONOFRE NUCLEAR GENERATING STATION P. O. BOX 128 SAN CLEMEN TE, CALIFORNIA 92672 H E. MORGAN TELEPHONE January 12, 1987 g " ' * * * * '

$s E iR U. S. Nuclear Regulatory Commission -

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Office of Inspection and Enforcement 2:

• oc Region V $ j[ E 1450 Maria Lane, Suite 210 lE Walnut Creek, California 94596-5368 W ca en Attention: Mr. J. B. Martin, Regional Administrator

Subject:

Docket Nos. 50-361 and 50-362 Follow-up Report, Inoperable Fire Doors - December 1986 San Onofre Nuclear Generating Station, Units 2 and 3

Reference:

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

dated December 15, 1986 In accordance with our referenced letter, this submittal provides the follow-up report of Technical Specification fire-rated assemblies (specifically fire doors) found inoperable during routine surveillances in December 1986.

Fire doors found inoperable during the December routine surveillances are L identified in the Attachment and include: 5 latching mechanism failures, 3 closure mechanism failures. No doors were found blocked open in December.

! As each of these deficiencies was-identified, compensatory 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, d

8702170711 870112 ~

PDR ADOCK 05000361 f$ PDR i\

.TED/

1

Mr. J. B. Martin 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 January 1987 will be submitted by February 16, 1987.

If you require any additional information, please so advise.

Sincerely, Mb '

Enclosure:

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

U. S. Nuclear Regulatory Commission Document Control Desk Institute of Nuclear Power Operations (INP0)

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. ATTACHMENT SOUTHERN CALIFORNIA EDISON COMPANY

' INOPERABLE FIRE DOORS FOR THE MONTH OF DECEMBER 1986 SAN ONOFRE NUCLEAR GENERATING STATION UNITS'2 AND 3, DOCKET NOS. 50-361 and 50-362 I. Latching Mechanism Failures:

Number of doors inoperable-- 5,'as follows:

Door Number Inoperable Operable AR-509 11/16/86 12/02/86 FH2-103 -11/16/86- 12/31/86~

AR-502 -11/16/86 - - -

AC-239 12/02/86- 12/04/86 AC-417 12/09/86 - - -

II. Closure Mechanism Failures:

Number of doors inoperable'- 3, as follows:

Door Number Inoperable Operable AR-301 12/02/86 12/06/86 AR-301 12/13/86 12/14/86 AC-417 12/28/86 12/31/86 III'. Doors Blocked Open:

Number of doors blocked open - None o