ML17328A079
| ML17328A079 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 07/19/1989 |
| From: | Alexich M INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG |
| To: | Murley T NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| AEP:NRC:1098, GL-89-08, GL-89-8, NUDOCS 8907240234 | |
| Download: ML17328A079 (5) | |
Text
REGULATORY INFORMATXON DISTRIBUTION SYSTEM (RIDS)
COPIES LTTR ENCL RECIPIENT ID CODE/NAME PD3-1 LA GIITTER,J.
INTERNAL: NRR/DEST/ADS 7E NRR/DEST/ESB 8D NRR/DEST/MTB 9H NRR/DOEA/TSB,ll OC/LFMB RECIPIENT ID CODE/NAME PD3-1 PD COPIES LTTR E CL 1
5 NRR/DEST/CEB 8H NRR/DEST/ICS B NRR/DEST/RSB 8E NUDOCS-ABSTRACT ',
OGC/HDS1 RES/DSIR/EXB 0
ACCESSXON NBR:,8907240234 DOC.DATE: 89/07/19 NOTARIZED: YES DOCKET g
FACIL:50-315 Donald C.
Cook Nucle'ar Power Plant, Unit 1, Xndiana 05000315 50-316 Donald C.
Cook Nuclear Power Plant, Unit 2, Xndiana 05000316 AUTH.NAME
AUTHOR AFFILIATION ALEXICH,M.P...
Indiana Michigan Power Co.-(formerly Indiana'..&";.Michigan Ele R
RECIP.NAME
, 'ECIPIENT AFFILIATION MURLEY,T.E.
Docuaient Control Branch.(Document Control Desk)
I'UBJECT:
Responds to NRC Generic Ltr 89-08, "Erosion/Corrosion Induced Pipe Wall Thinning."
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8
indiana Michigan Power Company P.O. Box 16631 Columbus, OH 43216 AEP:NRC:1098 Cook Nuclear Plant Units 1 and 2
Docket Nos.
50-315 and 50-316 License Nos.
DPR-58 and DPR-74 NRC GENERIC LETTER 89-08 EROSION/CORROSION INDUCED PIPE WALL THINNING U. S. Nuclear Regulatory Commission Attn:
Document Control Desk Washington, D.
C.
20555 Attn:
T.
E. Murley July 19, 1989
Dear Dr. Murley:
This letter responds to NRC Generic Letter 89-08, "Erosion/
Corrosion
- Induced Pipe Wall Thinning," as it applies to the Donald C.
Cook Nuclear Plant.
Generic Letter 89-08 requests that all holders of operating licenses for nuclear power plants respond on whether or not they have implemented or intend to implement a long term erosion/
corrosion monitoring program.
This program must provide assurances that procedures or administrative controls are in place to ensure that the NUMARC program or another equally effective program is implemented and that the structural integrity of all high-energy (two-phase as well as single-phase) carbon steel systems is maintained.
If this program is not yet implemented, licensees are requested to include the scheduled implementation date.
go~I I 0 8907240234 8907i9 PDR ADOCK 05000315 P
PDC An Erosion/Corrosion Inspection Program was established at the Cook Nuclear Plant in November 1982 for two-phase flow.
This program was in response to I.E. Information Notice 82-22 and has been ongoing ever since.
In August 1985, the Erosion/Corrosion Inspection Program was expanded to include single-phase flow systems.
On December 22,
- 1988, a program consisting of systematic measures to ensure that erosion/corrosion does not lead to degradation of single-phase and two-phase high energy carbon steel systems was transmitted from AEPSC to Cook Nuclear Plant.
This Erosion/Corrosion Inspection Program (two-phase as well as single-phase) has been implemented at Cook Nuclear Plant.
The program was developed to ensure that NUMARC/EPRI guidelines are implemented.
Dr. T. E. Murley AEP:NRC:1098 To date 763 components have been ultrasonically tested as a part of the Erosion/Corrosion Inspection Program at Cook Nuclear Plant.
Upon receipt of Generic Letter 89-08, an audit of this program was performed by AEPSC's Quality Assurance Division to ascertain whether the program complies with NUMARC/EPRI guidelines.
The audit concluded that for the five critical attributes--system selection, inspection operation, review of results, repair/
replacement and re-inspection--the program currently implemented at Cook Nuclear Plant is in compliance with NUMARC/EPRI guidelines.
Enhancements were recommended in the audit to help formalize the long term implementation of the program, These enhancements will be added during the annual review of the Erosion/Corrosion Inspection Program, scheduled for completion in December 1989.
We believe, with the recommended enhancement in
- place, there will be adequate assurance that Cook Nuclear Plant will continue to maintain the structural integrity of high energy carbon steel piping systems.
This letter is submitted pursuant to 10 CFR 50.54(f) and, as such, an oath of affirmation is enclosed.
Sincerely, M.
. Alexich Vice President MPA/eh cc:
D. H. Williams, Jr.
W.
G. Smith, Jr.
- Bridgman C. Callen Charnoff M Section Chief BE Davis
- Region III
~j Resident Inspector
- Bridgman
COUNTY OF FRANKLIN Milton P. Alexich, being duly sworn, deposes and says that he is the Vice President of licensee Indiana Michigan Power Company, that he has read the forgoing Response to NRC Generic Letter 89-08, "Erosion-Corrosion Induced Pipe Wall Thinning" dated May 2, 1989 and knows the contents thereof; and that said contents are true to the best of his knowledge and belief.
Subscribed and sworn to before me this ~)7~
day of N TARY PUB IC
J
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