ML20205Q128

Followup Rept of fire-rated Assemblies Found Inoperable During Routine Surveillances in Apr 1986.Fire Watches Established as Listed Deficiencies Identified.Followup Rept on Inoperable Fire Doors Will Be Submitted by 860616

ML20205Q128
Person / Time
Site:	San Onofre
Issue date:	05/15/1986
From:	Morgan H SOUTHERN CALIFORNIA EDISON CO.
To:	Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
NUDOCS 8605280172
Download: ML20205Q128 (5)

Text

,

7 I

Pi; UVEb n -r van ffg4 w

Southem Califomia Edison Company Q] m gp p p y SAN ONOFRE NUCLE AR GENERATING ST ATION P O DOX128 SAN CLEMENTE, CALIFOHNIA 92672 hI*s' H E. MORGAN T E LE PHONE

"' * *"'"' '" ~ " " " '

May 15, 1986 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 - April 1986 San Onofre Nuclear Generating Station, Units 2 and 3

Reference:

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

dated April 7, 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 April 1986.

Fire doors found inoperable during the April routine surveillances are identified in the Attachment and include: 7 latching mechanism failures; 9 closure mechanism failures; and 1 door blocked open typically for construction, operation or maintenance activities. 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.

The responsible party was not identified for the 1 fire door found blocked open.

8605200172 860D15 PDR ADOCK 05000361 S PDR l l yG.//

- _ _ _ _ - - _ _ - - . - - - - - - - - )

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 May 1986 will be submitted by June 16, 1986.

If you require any additional information, please so advise.

Sincerely, Mb E 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 (INPO)

L

E ATTACHMENT SOUTHERN CALIFORNIA EDISON COMPANY INOPERABLE FIRE DOORS FOR THE MONTH OF APRIL 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 - 7, as follows:

Door Number Inoperable Operable AR-305 02/22/86 - - -

AC-416 03/06/86 - - -

AC-417 03/07/86 - - -

AC-455 03/08/86 - - -

AC-442 04/03/86 - - -

AC-328 04/10/86 04/24/86 AC-402 04/19/86 - - -

L

I ATTACHMENT SOUTHERN CALIFORNIA EDIS0N COMPANY INOPERABLE FIRE DOORS FOR THE MONTH OF APRIL 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 - 9, as follows:

Door Number Inoperable Operable AR-502 02/01/86 04/11/86 FH3-404 03/25/86 04/17/86 AR-301 03/30/86 04/02/86 I

FH3-304 04/04/86 04/05/86 FH3-103 04/04/86 04/10/86 FH3-207 04/04/86 04/05/86 AC-343 04/07/86 04/12/86 AC-415 04/10/86 04/27/86 i

AC-455 04/26/86 - - -

l l

r 4

i i

ATTACHMENT SOUTHERN CALIFORNIA EDISON COMPANY INOPERABLE FIRE DOORS FOR THE MONTH OF APRIL 1986 SAN ON0FRE NUCLEAR GENERATING STATION UNITS 2 AND 3, DOCKET NOS. 50-361 and 30-362 (Continued)

III. Doors Blocked Open:

Number of doors blocked open - 1, as follows:

Door Number Date Found Blocked Open*

AR-105 04/16/86

• (fire watches established within one hour) 8381u m