United States Nuclear Regulatory Commission - Protecting People and the Environment


ACCESSION #: 9709040119



Information & Support Services

P.O.  Box 3707

Seattle, WA 98124-2207



August 27, 1997

G-1151-SJA-97-395



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: (206) 865-6248

FAX: (206) 865-4851

Mail Stop: 7A-33, or

e-mail: Sandra.Andrews@PSS.Boeing.com



Enclosure(s): GTSTRUDL Program Report Form 97.07



Georgia Institute

of Technology                                  GTSTRUDL [Registered Copy]



                                                              AUG 26 1997

August 19, 1997



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 97.07 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      Phone: (404) 894-2260

School of Civil & Environmental Engineering       Fax: (404) 894-8014

Atlanta, Georgia 30332-0355 USA                   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:



_ 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   August 18, 1997



Date Notification Sent



Computers      PC



Operating System    DOS, Windows NT, Windows 95



Version   All versions up to and including   97.01



Target Release for Correction 98.01



                                        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



Rev. 2.2



                      GTSTRUDL Program Report Form

                               (Continued)



                                                   GPRF No.:



                                                       DATE:



DESCRIPTION:



     The NONLINEAR ANALYSIS CONTINUE command will abort if a new load is

created or a previously inactive load is newly activated prior to

execution.  This is not a valid operation.  The NONLINEAR ANALYSIS

CONTINUE

command expects results to be available for the currently active load

from

previous NONLINEAR ANALYSIS or NONLINEAR ANALYSIS CONTINUE commands.  An

example of the command sequence that causes the abort follows:



          UNITS KIPS INCHES

          LOADING 1

          JOINT LOADS

               1 TO 10 FORCE Y -10.0



          MAXIMUM NUMBER OF CYCLES 10

          CONVERGENCE TOLERANCE DISPLACEMENT 0.001

          NONLINEAR ANALYSIS



          $

          $ Loading 2 is a new load with no results from a previous

               analysis.

          $ NONLINEAR ANALYSIS CONTINUE expects results to be available.

          $

          LOAD 2

          JOINT LOADS

               1 TO 10 FORCE Y -20.0

          LOAD LIST 2



          NONLINEAR ANALYSIS CONTINUE



The correct way to do this is shown below:



          UNITS KIPS INCHES

          LOADING 1

          JOINT LOADS

               1 TO 10 FORCE Y -10.0



Rev. 2.2



          MAXIMUM NUMBER OF CYCLES 10

          CONVERGENCE TOLERANCE DISPLACEMENT 0.001

          NONLINEAR ANALYSIS



          $

          $ The total joint loads applied to joints 1 to 10 is -20.0 kips

               in the global Y direction.

          $ Use CHANGES and ADDITIONS modes to add an additional -10.0

               kips to

          $ loading 1.

          $

          CHANGES

          LOAD 2

          ADDITIONS

          JOINT LOADS

               1 TO 10 FORCE Y -10.0

          LOAD LIST 1



          NONLINEAR ANALYSIS CONTINUE



Rev. 2.2



*** END OF DOCUMENT ***



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