ML20216E472
| ML20216E472 | |
| Person / Time | |
|---|---|
| Site: | Perry, Catawba, Harris, Grand Gulf, River Bend, Vogtle, San Onofre, Comanche Peak, Rancho Seco, Midland, Bellefonte, 05000000, Washington Public Power Supply System |
| Issue date: | 05/28/1987 |
| From: | Guntrum B IMO DELAVAL, INC. |
| To: | NRC |
| References | |
| REF-PT21-87, REF-PT21-87-118-000 140, PT21-87-118, PT21-87-118-000, NUDOCS 8706300704 | |
| Download: ML20216E472 (2) | |
Text
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Imo Niaval lnc.
Enterprise Engine Dhision Enterprise Way and 85th Avenue D ' Oakland, CA 94021 P. O. Ilox 2161 4 5-5J7-7400 May 28, 1987 Director, Office of Inspection and Enforcement l
US Nuclear Regulatory Commission
{
Washington,'DC 20553 i
l Report #140 I
i l
Dear Sir,
in accorance with the requirements of Title 10, Chapter 10, j
Code of Federal Regulations, Part 21, IMO Delaval Inc.
(
hereby notifies the Commission of a potential defect in a
. component of a DSR and DSRV Standby Diesel Generator.
There exists a potential problem with the air pressure regulator that supplies control air to the engine control panel.
IMO Delaval has supplied DSR and DSRV engines with this potential defect to the following sites:
UTILITY SITE SERIAL NO.
MODEL C.
O Systems Energy Resources Grand Gulf-74033/36 DSRV-16-4 Gulf States River Band.
74039/40 DSR-48 Carolina Power & Light Shearon Harris 74046/49 DSRV-16-4 Duke Power Catawba-75017/20 DSRV-16-4 S. Cal. Edison San Onofre '
75041/42 DSRV-20-4 Cleveland Electric Perr,y. -
75051/54 DSRV-16-4 TVA Bellefonte-75080/83 DSRV-16-4 Wash. Public Power WNP-1 75084/85 DSRV-16-4 T.U.
Electric Comanche Peak'- 76001/04 DSHV-16-4 Georgia Power Vogtle "
76021/24 DSRV-16-4 Consumer Power Midland j 77001/04 DSRV-12-4 TVA
'Hartsvillef 77024/25 DSRV-16-4 SMUD Rancho Seco 81015/16 DSR-48 The air pressure regulators are manufactured by Bellofram, Ourlington, MA.
The. regulator is located in the supply line from the starting air receiver tanks to the engine control panel.
There exists a potential problem that the dripwell gasket may fail, due to mismachining of the gasket seating surface, causing a loss of control air which in turn could cause a loss of starting air pressure.
The defective f '.
regulators may be identified by the date of manufacture which is stamped on the bottom of the regulator.
The date of manufacture is identified by a letter followed by a and,/4' l number.
The 1e.tter indicates the month of manufacture, the number indicates the year (i.e.
"O6" is March 1986).
'( 0 8706300704 870528 PDR ADOCK'05000206i PDR
. =
- I' age 2 May 28, 1987 US Nuclear Regulatory Commission The action necessary to correct this potential defect is to replace all regulators which are identified with the number "6".
1 A copy of this letter Will be sent to the affected sites as
' indicated by the cc list.
i Sincerely,
"/
6L ma a
FoR ruce C.
Guntrum Manager,-Quality Assurance f3CG/dfa