ML20028C420

Advises That Addl Time Required to Adequately Evaluate Offgas Sys & Procedures,In Response to IE Bulletin 78-03. Review of Items Noted in Bulletin Will Be Completed by 780501

ML20028C420
Person / Time
Site:	Duane Arnold, 05000000
Issue date:	03/24/1978
From:	Hammond E IES UTILITIES INC., (FORMERLY IOWA ELECTRIC LIGHT
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20027A594	List: 05000000/LER-1977-040, Forwards LER 77-040/01T 05000000/LER-1977-040-01, /01T:on 771213,two Hydrogen Detonations Occurred in Offgas Sys & Stack Base,Resulting in Momentary Radioactive Release & Injury to One Employee.Initial Detonation Caused by Arc Strike on Instrument Tubing 05000000/LER-1977-043, Forwards LER 77-043/03L-0.Detailed Event Analysis Encl 05000000/LER-1977-043-03, /03L-0:on 771219,stack Gas Monitor Sample Probes & Mounting Beam Discovered Damaged.Caused by 771213 Stack Base Hydrogen Detonation.Monitor Probes & Support Beam Replaced & Sys Operation Restored on 771223 IR 05000245/1977033 ML20027A593 ML20027A595 ML20027A612 ML20028C393 ML20028C398 ML20028C399 ML20028C403 ML20028C405 ML20028C407 ML20028C408 ML20028C410 ML20028C411 ML20028C412 ML20028C413 ML20028C414 ML20028C415 ML20028C419 ML20028C420 ML20028C422 ML20028C423 ML20028C424 ML20028C425 ML20028C426 ML20028C427 ML20028C428 ML20028C430 ML20028C431 ML20028C432 ML20028C433 ML20028C434 ML20028C435 ML20028C436 ML20028C437 ML20028C440 ML20028C441 ML20028C442 ML20028C443 ML20028C446 ML20028C448 ML20028C449 ML20028C450 ML20028C451 ML20028C452 ML20028C453 ML20028C454 ... further results
References
FOIA-82-545, REF-SSINS-6820 DAEC-78-184, IEB-78-03, IEB-78-3, NUDOCS 8301100101
Download: ML20028C420 (1)

Text

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IOWA Etzcraic LIGHT AND POWER COMPANY DUANE ARNOLD ENDiGI CDoTD?

-P.

O.

Box 351 Cedar Rapids, Iowa 52406 qu -3% \\

March 26, 1978 DAEC 184 Mr. James G. Keppler, Director Office of Inspection and Enforcement-Region III U. S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137

Subject:

Response to Bulletin 78-03

~

File:

A-101a

Dear Mr. Keppler:

This letter is to advise you that we will require additional time to adequately evaluate our offgas system and procedures in accordance with the subject bulletin.

Our review of the items noted in the bulletin has been included in an overall review of the offgas system "esign being d

conducted by our Engineering Department.

We anticipate our review can be completed and a response submitted to your office by May 1,1978.

Very truly yours, b!h f

Ellery

. Hammond Chief Engineer Duane Arnold Energy Center ELH/DLW/mg ec:

D. Arnold S. Tuthill J. Wallace D. Mineck B. York D. Wilson H. Rehrauer G. Ellis s

~U. S. Nuclear Regulatory Ccmmission g' gg198 Office of Inspection and Enforcenent

. Division of Reacter Ocerations Inscection Washincten.

D.C.

20555 8301100101 821207 PDR FOIA HIATT82-545 PDR

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