ML20083Q761
| ML20083Q761 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 04/12/1984 |
| From: | Edelman M CLEVELAND ELECTRIC ILLUMINATING CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| RDC-100(84), NUDOCS 8404230229 | |
| Download: ML20083Q761 (2) | |
Text
p,mb' 4
w i
1.
P o. Box 5000 - CLEVELAND. oHlo 44101 - TELEPHONE (216) 622-9800 - lLLUMINATING BLDG - 55 PUBLIC SoUARE Semng The Best Location in the Nation MURRAY R. EDELMAN VICE PRESIDENT NUCU A R 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 Nos. 50-440; 50-441 Numeraus Deficiencies Associated With Limitorque MOV Actuators
[RDC 100(84)]
Dear Mr. Keppler:
This letter serves as an interim report pursuant to 10CFR50.55(e) relative to deficiencies detected during the Phase III Limitorque Actuator Rework Program conducted at PNPP.
Mr. R. Knop of your of fice was notified on March 16, 1984, by Mr. E. Riley of The Cleveland Electric Illuminating Company (CEI) that preliminary results of the rework program in progress revealed numerous deficiencies which are being evaluated.
This report contains a description of the deficiency, the corrective action being taken, and the planned date for our final report.
Description of Deficiency The Cleveland Electric Illuminating Co. and Gilbert Associates Inc. developed a program to rework safety-related Limitorque actuators with the objective of satisfying equipment gaalification requirements and providing maximum operating reliability.
To be completed in three (3) phases, Phase I of the program consisted of a cursory walkdown to obtain qualification data and initially identify any obvious deficiencies.
Phase II involved evaluating the results and developing rework procedures, and Phase III consisted of the actual disassembly, rework and re-assembly of the actuators. During the performance of Phase III for Unit 1 and Common, an interim trend analysis was conducted on equipment / material deficiencies and required rework actions.
With 131 of 225 Motor Operated Valve (MOV) actuators processed through the referenced rework program, numerous deficiencies found included damaged wiring, inadequate crimping, cracked limitswitch rotors and missing / damaged mechanical parts.
It has been determined by our Nuclear Design & Analysis Section that the deficiencies could have precluded operation in several systems essential to the safe shutdown of the reactor.
8404230229 840412 DRADOCK05000p4 Apg1 6
\\'
1sJ7
~.
o Mr. James G. Keppler April 12, 1984 Corrective Action Deficiencies related to Unit I and Common Limitorque MOV actuators have been documented on Nonconformance Reports or have been corrected in accordance with the provisions of Special Project Plan 1607, " Procedure for Rework of Safety-Related Limitorque Actuators".
In addition, in order to assure the acceptability of spare and replacement parts, Project Organization has directed the accomplishment of manufacturing surveillance by Gilbert Associates' inspection personnel at Limitorque's Lynchburg, Virginia facility.
j With the rework program nearly completed for Unit I and Common, we expect that the inspection, rework and evaluation ef fort will be completed by July 1, 1984, and our Unit 1 final report will be filed by that date.
Unit 2 MOV actuators have been documented on Nonconformance Report 0QC-0782 based upon their indeterminate status.
Please call if there are any additional questions, i
Sincerely, Murray. Edelman j
Vice President Nuclear Group I
MRE:pab cc:
Mr. M. L. Gildner NRC Site Office Director i
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, Suite 1500 Atlanta, Georgia 30339 i
.