ML20106D542

Ro:During Sept 1984 Routine Surveillances,Fire Doors Found Inoperable Due to Latching Mechanism Failures,Closure Mechanism Failures & Doors Blocked Open.Fire Watches Established & Door Latches & Closure Mechanisms Upgraded

ML20106D542
Person / Time
Site:	San Onofre
Issue date:	10/15/1984
From:	Haynes J SOUTHERN CALIFORNIA EDISON CO.
To:	Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
NUDOCS 8410260038
Download: ML20106D542 (5)

Text

y' & eg.

m RECklVEy e

i;C Wf ec7 gg p*h. y

U Southern California Edison Company i lJ SAN ONOFRE NUCLE AR GENER A TING STATION p.o. eOx tae s AN CLEMENTE. C ALIFORNI A 92672 ff 3,f J. G. HA YN E S t a ts ewo N s

. stu.on - AN AG s =

October 15, 1984 m.i.,m..

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 - September 1984 San Onofre Nuclear Generating Station, Units 2 and 3

Reference:

Letter, J. G. Haynes (SCE) to J. B. Martin (NRC),

dated September 18, 1984

~

In accordance with our referenced letter, this. submittal prcvides the follow-up report of fire-rated assemblies (specifically Mre doors) found inoperable during routine surveillances in September 1984.

Fire ~ doors found inoperable during the September routine surveillances are identified in the Attachment and include: 5 latching mechanism failures; 14 closure mechanism failures; and 2 doors blocked open typically for construction or maintenance activities. An investigation was conducted to determine the ' person or persons responsible for the blocked open fire doors, however, results were inconclusive. 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 the corrective actions to upgrade door latches and closure mechanisms. A disciplinary action policy was implemented August 15, 1984, by Station Management, in order to eliminate occurrences of blocked open fire doors without the required Fire Barrier Removal and Reinstallation Request.

This monthly follow-up report and those sent previously provide updated information' associated with an ongoing condition initially reported in 1983. The folicw-up report covering inoperable fire doors identified in October 1984 will be submitted by Novenber 21, 1984.

8410260038 841015 i I PDR ADOCK 05000361 8

S PDR L

3g.,9

3 Mr. J. B.' Martin -

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

Sincerely, h y&

-Enclosure

~cc:

A. E..Chaffee (USNRC Senior Resident Inspector, Units 1, 2 and 3)

J. P. Stewart (USNRC Resident Inspector, Units 2 and 3)

U. S. Nuclear Regulatory Commission Document Control Desk Institute of Nuclear Power Operations (INPO) i Y

I a

f t

_.. _... _ -.... ~ _ _.,.. _. _,. _ _ _ _, _ _ _ _. _. _, _ _ _ _ _ _ _ _ _. _ _. _ _ _ _. _ _. _. _

ATTACHMENT SOUTHERN CALIFORNIA EDISON COMPANY

. INOPERABLE FIRE DOORS FOR THE MONTH OF SEPTEMBER 1984 SAN ONOFRE NUCLEAR GENERATING STATION UNITS NO. 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 FH2-103 9/25 9/26 l

FH2-302 9/5 9/19 FH3-302 9/9 Work in Progress FH2-304 9/25 9/26 AC-308 9/9 9/10 l

l l

l l

t

-1 l

l l

I L

s ATTACHMENT SOUTHERN CALIFORNIA EDISON COMPANY INOPERABLE FIRE D0 ORS FOR THE MONTH OF SEPTEMBER 1984 SAN ONOFRE NUCLEAR GENERATING STATION UNITS NO. 2 AND 3, DOCKET NOS. 50-361 and 50-362 (Continued)

II. Closure Mechanism Failures:

Number of doors inoperable - 14, as follows:

Door Number Inoperable Operable FH2-101-9/11 9/12 AC-118 9/6 9/11 AC-126 9/6 9/11 AC-131

'9/14 9/17 AC-239 9/7 9/8 AC-259 9/16 9/17 AC-305 9/16 9/17 AR-313 9/16 9/17 AC-341 9/17 9/18 AC-350 9/16 9/17 AC-351 9/5 9/6 C3-404 9/9 9/10 AR-405 9/12 9/14 C2-405 9/5 9/6 t-,_._ _.

--p

~

.7 o -

ATTACHMENT SOUTHERN CALIFORNIA EDISON COMPANY INOPERABLE FIRE DOORS FOR THE MONTH OF SEPTEMBER 1984 SAN ONOFRE NUCLEAR GENERATING STATION-UNITS NO. 2 AND 3, DOCKET NOS. 50-361 and 50-362 (Continued)

-III.

Doors Blocked Open:

Number of doors inoperable - 2, as follows:

Date Found Inoperable (fire watches established Door Number within one hour)

AC-11f, 9/1 AR-504 9/21 4286u l