ML20140B671
| ML20140B671 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 02/28/1986 |
| From: | Morgan H, Mrogan H SOUTHERN CALIFORNIA EDISON CO. |
| To: | Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| NUDOCS 8603240266 | |
| Download: ML20140B671 (3) | |
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SAN ONOFRE NUCLEAR GENERATING STATION P. O BOX 128
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SAN CLEMENTE. CALIFORNIA 92672 H.E. MORGAN TELEPHONE '
February 28, 1986 3
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
Dear Sir:
Subject:
Docket Nos. 50-361 and 50-362 Diesel Generator Annual Report - 1985 San Onofre Nuclear Generating Station, Units 2 and 3 Pursuant to Section 6.9.1.4 of Appendix A, Technical Specifications to Facility Operating License Nos. NPF-10 and NPF-15 for San Onofre Nuclear Generating Station Units 2 and 3, this Special Report is being submitted in accordance with Surveillance Requirement 4.8.1.1.3.
This Surveillance Requirement requires that a Special Report be submitted to the Commission for all diesel generator failures, valid and. invalid,.as determined by Regulatory Position C.2.e of Regulatory Guide 1.108.
Please contact us if we can be of further assistance.
Sincerely, k
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) t 2
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4 PAGE 2 0F'3-DIESEL GENERATOR REPORT SOUTHERN CALIFORNIA EDISON COMPANY SAN ONOFRE NUCLEAR GENERATING STATION UNIT NO. 2 AND 3, DOCKET NOS 50-361 AND 50-362 r
EVENT DATE:
August 29, 1985 The following information is provided in accordance with Technical Specification Surveillance Requirement 4.8.1.1.3 and Regulatory Position C.3.b of Regulatory Guide 1.108:
i 1.
The diesel generator involved was 3G003.
2.
This was not considered a valid test or failure of the diesel generator.
3.
The diesel generator failed to manually. start three times during trouble shooting of the governor following a recent test of the load control circuitry.
I 4.
The cause of the failures.to start was traced to-motor speed permissive switch in the governor which required adjustment. The switch was adjusted and 3G003 was successfully returned to service.
5.
The diesel was not available for autostart during this event from 0623 on
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8/28/85 to 2300 on 8/29/85.
6.
The test interval remained at 31 days.
7.
This test interval remained in conformance with Regulatory Position C.2.d of Regulatory Guide 1.108.
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.1 7971u 1
~ s, PAGE.3 0F 3 DIESEL GENERATOR REPORT SOUTHERN CALIFORNIA EDISON COMPANY J
SAN ON0FRE NUCLEAR GENERATING STATION UNIT NO. 2 AND 3, DOCKET NOS 50-361 AND 50-362 EVENT DATE:
June-29, 1985 The following information is provided in accordance with Technical Specification Surveillance Requirement 4.8.1.1.3 and Regulatory Position C.3.b of Regulatory Guide 1.108:
1.
The diesel generator involved was 2G002.
2.
This was not considered a valid test or failure of the diesel generator.
3.
The diesel generator was started for a one hour operability run, and manually secured shortly afterwards because one of the air motors would not disengage after starting-i 4.
The failure of the Bendix gear did not prevent the diesel from operating, j
however the diesel was shutdown as a precautionary measure to allow j
repairs to be made. The Bendix gear on the air motor had failed to retract. A new air motor was installed, however the specific cause of the Bendix gear failure to disengage was not determined.
5.
The diesel was not available for autostart during this event from 1846 on-6/29/85 to 0952 on 6/30/85.
t 6.
The test interval remained at 31 days.
7.
This test interval remained in conformance with Regulatory Position C.2.d of Regulatory Guide 1.108.
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