ML13330B328
| ML13330B328 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 06/14/1988 |
| From: | Morgan H SOUTHERN CALIFORNIA EDISON CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| NUDOCS 8806210445 | |
| Download: ML13330B328 (2) | |
Text
Southern California Edison Company SAN ONOFRE NUCLEAR GENERATING STATION P. 0. BOX 128 SAN CLEMENTE, CALIFORNIA 92672 H.E.MORGAN TELEPHONE STATION MANAGER (714) 366-6241 June 14, 1988 U.S. Nuclear Regulatory Commission Document Control Desk Washington, D.C.
20555
Subject:
Docket No. 50-206 Special Report San Onofre Nuclear Generating Station, Unit 1
References:
- 2) Letter, H. E. Morgan (SCE) to USNRC Document Control Desk dated May 6, 1988 Pursuant to Sections 3.14.B.4.b and 3.14.B.2.b of Appendix A, Technical Specifications (TS) to Provisional Operating License DPR-13 for San Onofre Unit 1, this submittal provides the required Special Report for fire detection instrumentation and fire spray/sprinkler systems being inoperable for greater than 14 days.
References 1 and 2 provided the required Special Reports for various fire detection instrumentation and spray/sprinkler systems being inoperable for greater than 14 days. In an Attachment to the references, the cause of inoperability and the plans and schedule to restore the detection/suppression equipment for Fire Zones 4, 8, 11, 16 and the containment sphere to operable status were included. Since the current mid-cycle outage had been extended, work was undertaken to perform modifications consistent with 10CFR50.49 Environmental Qualification as well as preventative and corrective maintenance. To support this work, it has been necessary to temporarily remove from service detection and/or spray/sprinkler systems for various Fire Zones previously reported, as well as the detection system for Fire Zone 7. Consequently, the schedules reported in reference 2 for restoring equipment to operable status are no longer correct.
8806210445 880614 PDR ADOCK 05000206 S
DCE
- g 0
Document Control Desk
-2 Although the fire detection and/or suppression equipment for Fire Zones 4, 7, 8, 11, and 16 have since been returned to service, extended outage activities may require additional impairments of this equipment. In accordance with operating procedures, the containment sphere spray system will not be returned to service while in Mode 5. All required fire detection instrumentation and fire spray/sprinkler systems are currently scheduled to be returned to operable status prior to entry into Mode 4.
As each fire detection instrumentation and/or spray/sprinkler system became inoperable, compensatory fire watch and/or backup fire suppression equipment pursuant to TS 3.14.B.2.a and 3.14.B.4.a were established. These compensatory measures will remain in effect until the associated fire detection instrumentation and/or spray/sprinkler system is returned to service.
SCE considers this letter as satisfying the Special Report requirements currently specified in TS 3.14.B.2.b and 3.14.B.4.b and no further reports will be made in this regard, during the current outage.
If you require additional information, please so advise.
Sincerely, cc: J. B. Martin (Regional Administrator, USNRC Region V)
F. R. Huey (USNRC Resident Inspector, Units 1, 2 and 3)
Institute of Nuclear Power Operations (INPO)