ML20082C035

Interim Deficiency Repts 83-08 & 83-06 Re Welding of Elcen Metal Products Spring Hangers.Initially Reported on 830617. Replacement Parts for Affected Springs Not Delivered. Evaluation of Spring Hangers Will Be Reported by 840115

ML20082C035
Person / Time
Site:	Byron, Braidwood, 05000000
Issue date:	11/14/1983
From:	Swartz E COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
10CFR-050.55E, 10CFR-50.55E, 7590N, 83-06, 83-08, 83-6, 83-8, NUDOCS 8311210408
Download: ML20082C035 (2)

Text

i

, O Commonwealth Edison

) ona First N1tional Plaza. Chicago. %nois b

! v 7 Address Riply to: Post Office Box 767 \

Nj Chicago, Illinois 60690 I

November 14, 1983 Mr. James G. Keppler, Regional Administrator

- Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137

Subject:

Byron Station Units 1 and 2 Braidwood Station Units 1 and 2 10 CFR 50.55(e) Interim Report Spring Hanger Welding Deficiency NRC Docket Nos. 50-a54/455 and 50-456/457 Reference (a): T. R. Tramm letter to J. G. Keppler dated July 18, 1983

Dear Mr. Keppler:

On June 17, 1983, the Commonwealth Edison Company Project Engineering Department notified Mr. Julian M. Hinds of your office of a deficiency reportable pursuant to 10 CFR 50.55(e) regarding the Elcen Metal Products spring hangers at our Byron and Braidwood Stations. For your tracking purposes, this deficiency was assigned Number 83-08 for Byron Station and Number 83-06 for Braidwood Station. Reference (a) provided our thirty (30) day report concerning this deficiency and indicated our expectations for submittal of the final report within ninety (90) days. The purpose of this letter is to provide a status update.

As stated in Reference (a), fourteen (14) hangers at each site have been identified as having nuts with a carbon content in excess of the applicable ASME Section III limit (greater than-0.35%). Replacement ~ springs.have since been ordered to replace the affected hangers ~1n order to correct this deficiency. However, at this time, replacement parts have not yet been delivered.

Concerning the evaluation of the spring hangers with a carbon content below 0.35%, IMPELL is currently providing an evaluation of these hangers to ASME B&PV Code,Section III, ,

Subsection NF. The results of this evaluation and subsequent l

actions will be documented in a later report now expected to be- I submitted on or about January 15, 1984.  !

l D B311210408 831114 PDR ADDCK 05000454 NOV 15 583 /

S Pm ,

- ~.

Please address any questions that you or your staff may have concerning this matter to this office.

Very truly yours, f

/ //

E. Douglas Swart V Nuclear Licensing Administrator Attachment cc: RIII Inspector - Byron RIII Inspector - Braidwood Director of Insp. and Enf.

US Nuclear Commission Washington, DC 20555 7590N