ML20129H053
| ML20129H053 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 05/31/1985 |
| From: | Edelman M CLEVELAND ELECTRIC ILLUMINATING CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| REF-PT21-85-295-000 (RDC-119(84)), 212, PT21-85-295, PT21-85-295-000, PY-CEI-OIE-055, PY-CEI-OIE-55, PY-CEI-OIE-O55, NUDOCS 8506070455 | |
| Download: ML20129H053 (2) | |
Text
-
b nt e f THE CLEVELAND ELECTR P.O. BOX 5000 - CLEVELAND, OHtO 44101 - TELEPHONE (216) 622-9800 - ILLUMINATING BLOG.
- 55 PUBLICSQUARE Serving The Best Location in the Nation inINITY ROUTING Iint 9,g MURRAY R. EDELMAN t
VICE PRESIDENT Yu_
j NUCLEAR W }
May 31, 1985
$~
PY-CEI/OIE-0055 LQ Mr. James G. Keppler Regional Administrator, Region III Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137 RE:
Perry Nuclear Power Plant Docket No. 50-440; 50-441 Dresser Industries Diaphragm Seal Globe Valves [RDC 119(84)]
Dear Mr. Keppler:
This letter is being transmitted to advise you of our progress concerning the modification of Dresser Industries diaphragm seal globe valves being conducted with respect to our Deviation Analysis Report 212.
Approximately 86% of the subject Unit 1 valves have been reworked relative to the corrective action program per Nonconformance Report NTS 118.
Approximately 60% of these have been tested, and have satisfied the acceptance criteria.
The test results indicate our modification program corrects the design deficiency.
The majority of the valves remaining to be examined / corrected are of the half inch size.
Several of the half inch valves have been inspected.
For this size valve, sticking is now being attributed to (1) deformed internals and (2) faulty diaphragms.
It has been determined that the above problems existed when the valves were received.
8506070455 850531 PDR ADOCK 05000440 S
PDR JUN ' 31985 VI \\
rrM %%
u
r o
. o*
Mr. JcO32 G. Kcppler 7
PY-CEI/OIE-0055 LQ May 31, 1095 Page 2 Since these problems are pre-existing and of a nature such that the valve will consistently fail to operate if it is defective, the half inch valves will be tested for operability.
Valves which fail the operability test will be disassembled and inspected to determine corrective action required, or the valve will be replaced.
Prior to use, operability of replacement valves will be verified by visual observation.
Corrective action for half inch valves, when not replaced, will be replacement of the defective parts.
The next report on this subject will be filed upon completion of
~
modification program implementation.
Please call if there are any questions.
Sincerely, Murray R. Ed man Vice President Nuclear Group MRE:sab cc:
Mr. J. A. Grobe USNRC, Site Office Mr. D. E. Keating USNRC,. Site Office Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C.
20555 U.S. Nuclear Regulatory Commission c/o Document Management Branch Washington, D.C.
20555 Records Center, SEE-IN Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Seite 1500 Atlanta, Georgia 30339 Mr. T. E. Meyers, President Industrial Valve Operations Division Dresser Industries Incorporated P.O. Box 1430 Alexandria, LA 71301 N
1