United States Nuclear Regulatory Commission - Protecting People and the Environment


ACCESSION #: 9709170210



                         Information & Support Services

                         P.O.  Box 3707

                         Seattle, WA 98124-2207



September 12, 1997

G-1151-SJA-97-426



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 Forms 97.10., 97.11 and 97.12



Georgia Institute

of Technology                                  GT TRUDL [Registered Copy]



                                                              SEP 10 1997



September 3, 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 97.10, 97.11,

97.12 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   August 22, 1997



Date Notification Sent



Computers      All



Operating System    All



Version        94.01 and later



Target Release for Correction      97.01 Mod 1



                                        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 PERFORM CABLE PRESTRESS ANALYSIS command aborts if joint

coordinates are missing for any node of any IPCABLE element specified in

the INCLUDE ELEMENTS options of the DEFINE CABLE NETWORK commands.  There

is no work around other than to make certain that joint coordinates are

specified for all IPCABLE elements in the model.



GTSTRUDL User Reference Manual Sections:



     Nonlinear Static Analysis of Cable      Section 2.6.3, Volume

     Structure                               3, Rev. P



Rev. 2.2



                      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        September 2, 1997



Date Notification Sent



Computers      All



Operating System         All



Version        94.01 and later



Target Release for Correction      97.01 Mod 1



                                        Mgr.  ASD

Signature                          Title

R & D Division



Michael W 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:



     Stress results produced by the LIST CABLE ANALYSIS RESULTS and LIST

STRESS commands are incorrect for the IPCABLE element if there are any

element loads, including self weight from the ELEMENT PROPERTIES command,

defined for the element.  This error can be verified by comparing the

element stress results at the starting or ending element node produced by

these commands to the stress at the starting or ending node computed by

the following relationship:



Equation "1" omitted



where,



     F sub x = global X nodal force at starting or ending node,

     F sub y = global Y nodal force at starting or ending node,

     F sub z = global Z nodal force at starting or ending node,

     AX      = element cross section area.



     The magnitude of the percent stress error at the starting or ending

node of the element can be estimated from the following relationship:



Equation "2" omitted.



where,



     Symbol omitted sub err = percent stress error estimate,

     f sub x                = total global X IPCABLE element load,

     f sub y                = total global Y IPCABLE element load,

     f sub z                = total global Z IPCABLE element load,

     Symbol omitted         = element starting or ending nodal stress

                              from Eq. 1.



Rev. 2.2



     As a work-around, the stress at the starting or ending node of an

IPCABLE element can be computed from Eq. 1.



GTSTRUDL User Reference Manual Sections:



     Nonlinear Static Analysis of Cable      Section 2.6.3, Volume 3,

          Structure                               Rev. P



     The LIST Command for Finite Element     Section 2.3.7.1, Volume 3,

          Results                                 Rev. D



Rev. 2.2



                      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        September 2, 1997



Date Notification Sent



Computers      PC



Operating System         DOS, NT, Windows 95



Version        94.01 and later



Target Release for Correction      97.01 Mod 1



                                        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:



     Nonlinear analysis will abort if variable members are active in the

model.  A work-around is to use additional joints and members to model

variable member properties.



GTSTRUDL User Reference Manual Sections:



     The MEMBER PROPERTIES Command      Section 2.1.9.2, Volume 1, Rev. M



Rev. 2.2



*** END OF DOCUMENT ***



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