ML20128N543
| ML20128N543 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 05/28/1985 |
| From: | Lundvall A BALTIMORE GAS & ELECTRIC CO. |
| To: | Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| REF-PT21-85, REF-PT21-85-256-000 PT21-85-256-000, NUDOCS 8506030314 | |
| Download: ML20128N543 (2) | |
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M BALTI MO RE GAS AND-ELECTRIC
- CHARLES CENTER P. O. BOX 1475 BALTIMORE, MARYLAND 21203 ARTHUR E LUNDVALL. JR.
VICE PatsIDENT SuPPLv Mr. Thomas E. Murley Regional Administrator, Region I Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission
' 631 Park Avenue King of Prussia, PA 19406
Dear Mr. Murley:
Subject:
Calvert Cliffs Nuclear Power Plant Unit Nos.1 & 2; Docket Nos. 50-317 and 50-313 Reporting of Defects and Non-Compliance
References:
10 CFR Part 21, Paragraph 21.21 (b) (1)
The attached report is submitted in accordance with the requirements of reference (a).
Items discussed in subparagraphs (b) (3) (vil) and (b) (3) (vill) will be supplied at a later date.
Very truly your O
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AEL/ERZ/vf cc: Mr. D. A. Brune, Esq.
Mr. G. F. Trowbridge, Esq.
Mr. D. H. Jaffe, NRC Mr. T. Foley, NRC Mr. R. C. DeYoung, NRC I
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L Report of Defect at-Calvert Cliffs Nuclear Power Plant Unit Nos.1 & 2-The-following Information is submitted as required by !!O CFR Part 21, Paragraph 21.21 (b) (3).
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"(i) J A. E. Lundvall,' 3r.
Vice President, Supply Baltimore Gas and Electric Company
~ P.' O. Box 1475 Baltimore, MD:21203 E
(ii). Bar, round 7/8 in. diameter x 2 ft.,' ASTM A-564, Type 630, Condition A,17-4 ^
PH Stainless Steel, heat number 656045, used for body to bonnet studs for CV-100-E & F (Pressurizer Spray Valves).
. (iii) Joseph T. Ryerson & Son, Inc.
P. O. Box 7349
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Philadelphia, PA' 19101
' (lv) The first shipment of material received.under this. order was identified by Baltimore Gas and Electric's Materials Engineering and Analysis Unit as being a 316 series stainless vice the ASTM A-564, Type 630, Condition A 17-4 PH as ordered.' The' Certified Material Test Report supplied with the order indicates that the material shipped was 17-4 PH. Two subsequent shipments received at Calvert Cliffs were verified to be the correct material by analysis..
If the plant had been operated with the material received installed in 1-CV-100 E & F, the integrity of the reactor coolant system pressure boundary would have been compromised during the design bases event.
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(v) May 24,1985
, (vi) The first shipment of bar stock was manufactured into five body to bonnet
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studs. and one. test standard.
A sample of the remainder of:the order, approximately 16' feet, was examined by an electron microscope to verify the
= correct material characteristics. These bars were made into body to bonnet studs which were installed in 1-CV-100 E & F.
(vil) The corrective action taken was to remove the body to bonnet studs manufactured from the incorrect material and to verify that the remainder of the order received was the correct material.
Additional corrective action, if any, has yet to be determined.
(viii) This.section will be completed at a later date.
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