United States Nuclear Regulatory Commission - Protecting People and the Environment

ACCESSION #: 9906220144


Shared Services Group
P.O. Box 3707
Seattle. WA 98124-2207

BOEING

June 15, 1999

G-1151-SJA-98-268

Document Control Desk
United States Nuclear Regulatory Commission
Washington, D.C. 20555

Reference: a) Boeing Letter G-1151-RSO-92-365 dated August 31, 1992; R.S. Orr to the NRC Operations Center
b) NRC Letter Docket No. 99901227 dated August 12, 1992; L. J. Norrholm to R. S. Orr; Subject: Response to 10 CFR 21 Inquiry

Dear Sir or Madam:

In accordance with the reference correspondence and 10 CFR 21, Boeing is sending the NRC the attached error notice(s) received from our former software suppliers. Because of unknown current addresses, the following former customers were not notified:

Reactor Controls, Inc.
Echo Energy Consultants, Inc.
Nuclear Applications and Systems Analysis Company (Japan)
Nuclear Power Services

Error notices have been sent to our other former customers.

Very truly yours,

Sandra J. Andrews
Nuclear Administrator
Phone: (425) 865-6248
FAX: (425) 865-4851
Mail Stop: 7A-33, or
e-mail: Sandra.J.Andrews@Boeing.com

Enclosure(s): GTSTRUDL Program Report Form 99.13


Georgia Institute of Technology

GT STRUDL "Register Mark"

June 10, 1999

Attention: Nuclear Administrator
Boeing Information & Support Services
P.O. Box 24346, M/S 7A-33
Seattle, Washington 98124-0346

RE: GT STRUDL

Dear Sir or Madam:

Enclosed please find copies of GTSTRUDL PROGRAM REPORT FORM 99.13, and a GTSTRUDL QA CUSTOMER ACKNOWLEDGEMENT FORM. Please sign and return the GTSTRUDL QA CUSTOMER ACKNOWLEDGEMENT FORM to acknowledge receipt of the GTSTRUDL Program Report.

Thank you for reviewing the Program Report and for returning the Acknowledgement Form.

Best regards,

CASE Center

David C. Key
Configuration Control Manager

Enclosures

Computer Aided Structural Engineering Center
School of Civil & Environmental Engineering
Atlanta, Georgia 30332-0355 USA
Phone: (404) 894-2260
Fax: (404) 894-8014
casec@ce.gatech.edu

A Unit of the University System of Georgia

GTSTRUDL Program Report Form

GPRF No.:

DATE:

FROM:

Computer-Aided Structural Engineering Center
Georgia Institute of Technology
Atlanta, Georgia 30332-0355

SEVERITY LEVEL:

X URGENT Problem results in incorrect answers which may not be apparent or job aborts and cannot be recovered within the session or job.

SERIOUS Problem results in incorrect answers which are obvious or problem prevents completion of a particular user's task.

MINOR Problem can be worked around or problem poses high frustration factor.

INFORMATIVE Documentation error, program usage tip, user inconveniences.

Date Problem Confirmed

Date Notification Sent

Computers ALL

Operating System ALL

Version All versions between 85.03 and 99.01 including 85.03 and 99.01

Target Release for Correction 9902

Director ASD

Signature Title

R & D Division

Kenneth Will

Typed or Printed Name Date of Signature

Signature Title

Professional Services Division

Typed or Printed name Date of Signature

Rev. 2.2

GTSTRUDL Program Report Form(Continued)

GPRF No.:

DATE:

DESCRIPTION:

The curved elements, TYPE 'SCURV' and 'PCURV', will produce incorrect results for tangential member loads (FORCE X). An example of the loading command which will produce this problem is shown below:

     LOADING 1

     MEMBER LOADS

     1 FORCE X UNIFORM W -10 where member (element) 1 is a 'SCURV' or 'PCURV' element.

Workaround:

Do not use the curved elements with FORCE X MEMBER LOADS. Break the curved element into straight members. Use enough straight members to accurately approximate the curved geometry.

Applicable Section of the Users Manual: Section 2.6.2.5 of Volume 3 - Curved Element Uniform Loads Rev. 2.2


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