United States Nuclear Regulatory Commission - Protecting People and the Environment


ACCESSION #: 9801260011



                              The Boeing Company

                              P.O. Box 3707

                              Seattle, WA 98124-2207

BOEING



January 15, 1998

G-1151-SJA-98-019



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 97.21





Georgia Institute

  of Technology                          GT STRUDL [Registered Trademark]



January 5, 1998



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 97.21, 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:



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   December 29, 1997



Date Notification Sent



Computers  PC (DOS, NT, 95)



Operating System  see "Computers" above



Version   96.01, 97.01



Target Release for Correction  1998.2





                                             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:



          Rigid body elements cannot be deleted or inactivated as

     conventional finite elements.  The specification of rigid body

     elements as conventional finite elements in the INACTIVE command or

     in DELETIONS mode will cause an abort in a subsequent stiffness,

     nonlinear, or dynamic analysis.



          At the present time, it is not valid to inactivate a rigid body

     using the INACTIVE command.



          If it is necessary to delete a rigid body, the RIGID BODY

     command must be used in DELETIONS mode as follows:



                    DELETIONS

                    RIGID BODY 'R1'

                    ADDITIONS





GTSTRUDL User Reference Manual Sections:



  ACTIVE/INACTIVE Structure Specification    Section 2.1.3.4, Volume 1,

                                             Rev. D

  Joint Constraints - Rigid Bodies and       Section 2.6.4, Volume 3,

  Joint Ties                                 Rev. P



Rev. 2.2





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