ML13331A462
| ML13331A462 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 07/25/1990 |
| From: | Nandy F SOUTHERN CALIFORNIA EDISON CO. |
| To: | Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| NUDOCS 9008010008 | |
| Download: ML13331A462 (4) | |
Text
Southern California Edison Company 23 PARKER STREET IRVINE, CALIFORNIA 92718 F. R. NANDY July 25, 1990 TELEPHONE MANAGER. NUCLEAR LICENSING (714) 587-5400 U. S. Nuclear Regulatory Commission Region V 1450 Maria Lane, Suite 210 Walnut Creek, California 94596-5368 Attention:
Mr. J. B. Martin, Regional Administrator
Subject:
Docket Nos. 50-206, 50-361 and 50-362 Follow-up Report, Inoperable Fire Doors - June 1990 San Onofre Nuclear Generating Station, Units 1, 2 and 3 This letter provides a follow-up report for Technical Specification (TS) fire-rated assemblies (i.e., fire doors) found inoperable during routine surveillances in June 1990. This monthly report and previous monthly reports provide updated information associated with the initial 1983 report for Units 2 and 3.
The enclosed report identifies: 2 closure mechanism failures and 3 latching mechanism failures for Unit 1; 20 latching mechanism failures and 9 closure mechanism failures for Units 2 and 3. As each of these deficiencies was identified, compensatory fire watches were established pursuant to TS 3.14.7, Action *A" for Unit 1, and TS 3.7.9, Action "a" for Units 2 and 3.
There were no Unit 1 or Unit 2 fire doors found to be blocked open in June. On June 12, 1990, Unit 3 Safety Equipment Building (SEB) pump room fire door S3-001 was found blocked open during a routine fire door surveillance. The responsible party for blocking the door open was not identified.
If you require any additional information, please let me know.
Very truly yours, Enclosures cc:
C. W. Caldwell (NRC Senior Resident Inspector, Units 1, 2 and 3)
J. E. Tatum (NRR SONGS Project Manager)
Institute of Nuclear Power Operations (INPO) 900801000:3 900725 PDElR ADOCK0500020_6 F'DC
ENCLOSURE SOUTHERN CALIFORNIA EDISON COMPANY INOPERABLE FIRE DOORS FOR THE MONTH OF JUNE 1990 SAN ONOFRE NUCLEAR GENERATING STATION UNIT 1, DOCKET NO. 50-206 I.
Latching Mechanism Failures:
Door Number Inoperable Operable S1-FBD-320 05/21/90 S1-FBD-129 05/30/90 06/05/90 II.
Closure Mechanism Failures:
Door Number Inoperable Operable S1-FBD-309 05/05/90 S1-FBD-320 05/21/90 S1-FBD-129 05/30/90 06/05/90 III.
Doors Blocked Open:
None fdr/jun Page 1 of 3
ENCLOSURE SOUTHERN CALIFORNIA EDISON COMPANY INOPERABLE FIRE DOORS FOR THE MONTH OF JUNE 1990 SAN ONOFRE NUCLEAR GENERATING STATION UNITS 2 AND 3, DOCKET NOS. 50-361 AND 50-362
- 1.
Latching Mechanism Failures:
Door Number Inoperable Operable AC-101 02/25/90 FH3-103 03/04/90 AC-119 03/09/90 FH3-404 03/14/90 06/29/90 FH3-403 04/13/90 06/01/90 AC-428 04/17/90 AC-405 05/01/90 06/07/90 AC-312 05/03/90 AC-213 05/14/90 06/15/90 06/21/90 C3-105 05/26/90 AC-264 06/04/90 06/19/90 AC-349 06/05/90 FH3-207 06/09/90 07/02/90 FH2-404 06/13/90 06/29/90 AC-218 06/13/90 06/22/90 AC-118 06/19/90 FH3-101 06/25/90 07/02/90 FH2-304 06/25/90 AC-117 06/29/90 fdr/jun Page 2 of 3
ENCLOSURE SOUTHERN CALIFORNIA EDISON COMPANY INOPERABLE FIRE DOORS FOR THE MONTH OF JUNE 1990 SAN ONOFRE NUCLEAR GENERATING STATION UNITS 2 AND 3, DOCKET NOS. 50-361 AND 50-362 II.
Closure Mechanism Failures:
Door Number Inoperable Operable AC-119 02/26/90 FH3-403 04/13/90 06/01/90 AC-310 04/15/90 AC-428 04/17/90 AC-311 05/05/90 06/28/90 DG3-104 06/02/90 06/04/90 AC-105 06/09/90 06/11/90 AC-106 06/09/90 06/11/90 C2-406 06/16/90 06/25/90 III.
Doors Blocked Open:
Door Number Date Found Blocked Open S3-001 06/12/90 fdr/jun Page 3 of 3