ML20210K902
| ML20210K902 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 04/10/1986 |
| From: | Dean R GENERAL ATOMICS (FORMERLY GA TECHNOLOGIES, INC./GENER |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| REF-PT21-86, REF-PT21-86-138-000 PT21-86-138, PT21-86-138-000, NUDOCS 8604290115 | |
| Download: ML20210K902 (2) | |
Text
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CD Ani i b rn 1: 06 GA Technologies Inc.
- DSEGO, April 10, 1986,..
UFORNIA 92138 SA
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(619) 455-3000 Administrator US Nuclear Regulatory Commission 1450 Maria Lane Suite 210 Walnut Creek, CA 94596
Dear Sir:
1 This report is made to you in compliance with the Code of Federal Regulations, Code 10, Part 21.
Name and Address of Individual Informing Richard A. Dean, Sr. Vice President GA Technologies Inc.
P.O. Box 85608 San Diego, CA 92138
- Facility Containing Defect:
Arizona Public Service Palo Verde Units 1, 2, & 3
- Basic Component Supplied:
Class 1E Diesel Generator Load Sequencer (6 units)
- Firm Supplying Basic Component:
Sorrento Electronic Division GA Technologieu Inc.
- Nature of Defect and Safety Hazard:
Improper grounding of a transistor can cause an over-voltage with consequential failure of the transistor. This can cause a failure of proper load sequencing on startup of the plant diesel generator (s).
- Date Information Obtained:
April 10, 1986
- Number of Units Containing Defect:
Six units shipped to APS.
They are a one-of-a-kind design.
Corrective Actions Supply APS with a kit to ensure grounding of the transistors o
affected. Revise drawings accordingly.
Product Engineer: Steve Coppock o
Action was completed by GA Technologies April 9, 1986 l{ 0 o
8604290115 860410 PDR ADOCK 05000528
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10955 JOHN JAY HOPKINS DR, SAN DIEGO. CAUFORNIA 92121
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-2 Advice to Customers:
Sorrento Electsunics has been communicating with-APS and
.they are investigating the defect.
If you wish any further information, please contact Mr. Steve Coppock at (619) 457-5769.
Very uly yo rs,
/
W Richard A. Dean Senior Vice President Reactor Programs cc:. Director, Office of Inspection and Enforcement US Nuclear Regulatory Commission Washington, DC 20555 i
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