Part 21 Report - 1999-017

ACCESSION #: 9905060080

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


April 19, 1999


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

Enclosure(s): GTSTRUDL Program Report Form 99.08

Georgia Institute of Technology GT STRUDL [Registered Trademark]

April 9, 1999
Attention: Nuclear Administrator
Boeing Information & Support Services
P. O. Box 24346, M/S 7A-33
Seattle, Washington 98124-0346


Dear Sir or Madam:

Enclosed please find copies of GTSTRUDL PROGRAM REPORT FORM 99.08, 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


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

A Unit of the University System of Georgia

GTSTRUDL Program Report Form
                        GPRF No.: 99.08
FROM: Computer-Aided Structural Engineering Center
Georgia Institute of Technology
Atlanta, Georgia 30332-0355
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 April 5, 1999
Date Notification Sent
Computers All
Operating System All
Versions: All
Target Release for Correction: 99.01
Mgr. ASD
Signature Title
R & D Division
Michael H. Swanger
Typed or Printed Name Date of Signature
Signature Title
Professional Services Division
Typed or Printed Name Date of Signature

GTSTRUDL Program Report Form(Continued) Rev. 2.2
     GPRF No.: 99.08
DESCRIPTION: The NONLINEAR ANALYSIS command will terminate with a structural instability error message if the following combination of conditions exist for any frame member:
1. The member has been specified as a nonlinear geometric member in the NONLINEAR EFFECTS command.
2. The member has member releases.
3. The member has a Beta reference joint.

A work-around is to specify the member Beta angle directly with the CONSTANTS command for members which satisfy conditions 1 and 2 above.

Applicable Reference Manual Sections

1. Nonlinear Effects Command Section 2.5.2, Volume 3, GTSTRUDL Reference Manual, Rev. P
2. The MEMBER RELEASES Command Section, Volume 1,
3. The BETA REFERENCE JOINT Command Section, Volume 1,
GTSTRUDL Reference Manual, Rev. P Rev. 2.2


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