ML20040A248
| ML20040A248 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 01/08/1982 |
| From: | Davidson D CLEVELAND ELECTRIC ILLUMINATING CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, RDC-43(82), NUDOCS 8201200613 | |
| Download: ML20040A248 (2) | |
Text
- -- --
T H E C L E V E L A N D E L E C T R I C I L L U f4 i N Affl N C C 0 to P A N Y P O DOX 5000 e CLEVEL AND. OHIO 44101 e TELEPHONE (216) 622-9800 m ILLUMINATING BLDG e 55 PUBLIC SOUARE Serving The Best Location m the Mt.oo h(I) I ~ l's Dalwyn R. Davidson vict one setNT srsic u o.mstcu.a Aso coNsinucnos January 8, 1982 4
g U
.,,P]
, s..
Mr. James G. Keppler l -H Director, Region III I.~
Of fice of Inspection and Enforcement
?,
/
U. S. Nuclear Regulatory Commission
- ')
\\-(,,
799 Roosevelt Road j/
\\
s Glen Ellyn, Illinois 61037 s(
,/
s RE: Perry Nuclear Power Plant Docket Nos.
50-440, 50-441; Standby Diesel Generators Model DSRV16:
Potential Defect in Starting Air System Check Valve (RDC 43(82))
Dear Mr. Keppler:
This letter serves as an interim report pursuant to 10CFR50.55(e) concerning a potential de fe c t in the standby diesel generator system supplied by Transamerica DeLaval, Inc.
Initial notification that this problem was being evaluated by The Cleveland Electric Illuminating Company (CEI) was made to your office on December 18, 1981, by Mr. R. L. Vondrasek o f CEI.
This report includes a description of the potential deficiency, an analysis of safety implication, and the method planned to complete our evalu., tion.
DESCRIPTION OF DEFICIENCY In their letter dated November 5, 1981. Transamerica DeLaval, Inc. reported to the Nuclear Regulatory Commission that a potential defect reportable under 10CFR21 had been discovered in their diesel engine generator system.
The potential defect 1-1/2 inch check valve manufactured by the Wm. Powell Co., Cincinnati, concerns a Ohio, installed in the starting air system between the starting air compressor and the starting air storage tanks. During seismic qualification testing, one of these valves was found to leak.
The valve is classified safety-related and designed in accordance with ASME Code,Section III, Class 3.
The Perry Nuclear Power Plant has four diesel generators which include this valve, indentified as Wm. Powell Co. Figure 2346, and they are installed in the diesel generator starting air system (R44). The total number of valves in question at PNPP is eight.
8201200613 820108 JE1#E PDR ADOCK 05000440 s
S PDR 94g
Mr. James G. Keppler January 8, 1982 Page Two ANALYSIS OF SAFETY IMPLICATION The function of the subject valves is to allow the starting air compressor to charge the air receiver tank and then to prevent back flow once the tank is charged. Failure of the starting air check valve could resul t in engine non-availability.
COMPLETION OF EVALUATION Transamerica DeLaval and the Wm. Powell Co. currently estimate that an evaluation to determine the cause of the reported defect, and to determine any required corrective action, will be completed in January, 1982.
final report on Following receipt of the results of this evaluation, we will submit a
this subject to you.
Filing of this report is presently scheduled for March 1,1982.
Sincerely, f/<g '
hM Dalwyn R. Davidson Vice President System Engineering end Construction DRD/11p cc:
NRC - Site Office Director Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D.C.
20555 U. 3. Nuclear Regulatory Commission c/o Document Management Branch Washington, n.c.
20555 4
+
5 4
f
- -