ML13316A033
| ML13316A033 | |
| Person / Time | |
|---|---|
| Site: | San Onofre, 05000000, Shoreham |
| Issue date: | 12/20/1988 |
| From: | Guntrum B COOPER INDUSTRIES, INC. |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| REF-PT21-88, REF-PT21-88-160-000 PT21-88-160, PT21-88-160-000, NUDOCS 8902080145 | |
| Download: ML13316A033 (2) | |
Text
Irno Delaval Inc.
Enterprise Engine Division IEnterprise Way and 85th Avenue P. 0. Box 2161 Oakland, CA 94621 415-577-7400 December 20., 1988 Director of Nuclear Reactor Regulation, U.S. Nuclear Regulatory Commission Mail Station P1-137 Washington, D.C. 20555 Report #147
Dear Sir,
In accordance with the requirements of Title 10, Chapter 1, Code of Federal Regulations, Part 21, Energy Services Group, a divi sion of Cooper Industries hereby notifies the Commission of a potential defect in a component of a DSRV Standby Diesel Genera tor.
There exists a potential problem with repair kits provided for a specific pressure regulator in the air start system.
Cooper Industries has supplied this component with this potential defect to the following site:
UTILITY 11E.
ENG. SERIAL NO.
ENG.
MODEL So. Cal. Edison San Onofre 75041/42 DSRV-20-4 The pressure regulator (F-579-013) in this application is a relieving type regulator designed to reset the Stop/Run valve after either a manual or emergency start. Modification of this regulator to a non-relieving configuration would render the auto matic reset signal inactive.
If the engine was shut down by means of the Stop/Run valve with the regulator in a non relieving configuration, the Stop/Run valve would not be reset for a subsequent start resulting in engine nonavailability.
Repair kits for the pressure regulator are available in a reliev ing (F-579-013-04) or non-relieving (F-579-013-05) configuration.
The difference between the two kits is in the diaphragm supplied; the relieving type is perforated to relieve air while the non relieving is not perforated. Installation of a non-relieving repair kit will modify the pressure regulator to a non-relieving configuration.
Our records indicate that two (2) of the non-relieving repair kits were supplied to the Southern California Edison, San Onofre site in June, 1988.
As described above, use of this kit could result in engine nonavailability.
We recommend these kits be removed from stock and disposed of immediately.
DVI 89020,014982 DRADC 0500020/cl-.
T V Irno Delaval Inc.
Enterprise Engine Division Enterprise Way and 85th Avenue P. O. Box 2161 Oakland, CA 94621 415-577-7400 December 20, 1988 U.S. Nuclear Regulatory Commission Page 2 Our records also indicate that six (6) pieces of this same kit were shipped to Long Island Lighting (Shoreham) in April, 1986.
The pressure regulator at Shoreham, however, is installed in a manner different than at San Onofre and does not interact with the emergency start function of the diesel engine. Nevertheless, we recommend these kits be disposed of as well.
Since action is required by others, we cannot estimate when cor rective action will be completed.
A copy of this letter will be sent to the Southern California Edison Company for their action. An information copy will be sent to Long Island Lighting.
Our evaluation of this matter was concluded on December 19, 1988.
In order to prevent any confusion caused by our letterhead, Energy Services Group, a division of Cooper Industries recently acquired the Enterprise Engine Division from Imo Delaval Inc.
Sincerely, Bruce
. Guntrum Manager, Quality Assurance BCG/dfa cc.:
Southern California Edison P.O. Box 800 Rosemead, CA 91770 Attn:
Q.A. Manager