United States Nuclear Regulatory Commission - Protecting People and the Environment


ACCESSION #: 9602050205



                     Information & Support Services

                             P.O.  Box 3707

                         Seattle, WA 98124 2207



January 30, 1996

G-1151-SJA-96-088



Document Control Desk

United States Nuclear Regulatory Commission

Washington, D.C.  20555



BOEING



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



     Tenera Engineering Services



Error notices have been sent to our other former customers.



Very truly yours,



Sandra J. Andrews

Nuclear Administrator

G-1151 M/S 7A-33

(206) 865-6248



Attachment(s): ANSYS Class3 Error Reports 96-01, 96-02 and 96-03;

               ANSYS QA Notice AQ96-01; Class3 Error Report Summaries

               for Rev 5.1 and Rev.  5.2



                         ANSYS, Inc.

                         201 Johnson Road         Telephone 412.746.3304

                         Houston, PA 15342-1300   Facsimile 412.746.9494



                              January 22, 1996



Dear Class3 Error Recipient:



     Enclosed with this letter you will find ANSYS Class3 Error Reports

96-01, 96-02, 96-03 and ANSYS QA Notice QA96-01.  For your convenience,

Class3 Error Report Summaries have been created for Rev.  5.1 and Rev.

5.2 and are also enclosed.  These summaries are sorted by Class3 Error

Number and also by keyword.



     Throughout 1995 you should have received Class3 Error Reports 95-01

up to and including 95-63.  ANSYS QA Notices QA95-01 through QA95-10 were

also issued throughout the year.  There was a need to revise some reports

this year and the following reports were also released: 93-105 R1, 94-41

R1, 94-52 R1, 94-68 R1, 94-01 R1, 95-10 R1, 95-07 R1, 95-21 R1 and 95-13

R1.



     If you are missing any of the above referenced reports please notify

Bonny Podolek at 412-873-2858 and the missing reports will be supplied to

You.  Please take a moment also to review the ASC name and address that

the reports are being sent to.  If any changes should be incorporated

into the address, please fill out the form attached to this letter and

return it so that we can update our records.



     I would like to remind you that Class3 Error Reports and the Class3

Error Summaries are also available in ascii format via Internet.

like to be added to the distribution list to receive reports in this

fashion, simply send an email to bpodolek@ansys.com and include your

email address, your name, company name and ANSYS license number.  Reports

sent via Internet do not replace the hard copy reports.  The hard copy

reports are still considered to be the official report.



     On behalf of the ANSYS, Inc.  staff, I would like to extend to you

and your associates, warm wishes for a prosperous year in 1996.



                                        Sincerely,



                                        ANSYS, Inc.



                                        William J.  Bryan

                                        Quality Assurance Manager



                  ANSYS Revision Identifier Description



     ANSYS revision identifiers consist of a major revision level, a

minor revision level, a correction level, and occasionally a special

version level.  An example of how this is constructed is shown below:



                             Figure omitted.



     Major revision level changes indicate that new features have been

added to the program and that some level of program architecture change

and/or file structure has occurred.  Minor revision level changes also

indicate that new features have been added to the program, but files are

upwardly compatible.  All known error fixes in included in both minor and

major revisions.  Changes to the collection level indicate that it is

primarily an error correction release.  Special version identifiers

indicate that one or more additional minor changes have been made to the

program, normally to circumvent an error.  Special versions are not

general releases to all ANSYS licensees, since they typically represent

errors occurring only on one system, a subset of our customers who have

specific graphics devices, etc.



     The ANSYS revision identifier(s) shown under "corrected in" on the

front side of this Class3 Error Report indicates the first possible

revision that could contain the correction.  A major program change

needed to fix an error can dictate that the next minor or major revision

will contain the fix rather than the next correction level.  For example,

when errors were being reported while Rev. 4.3A was the latest production

version, most Class3 error reports indicated that 4.3B was the "corrected

in" revision.  Others requiring significant code restructuring were

reported as fixed in 4.4. Rev. 4.3B was never released, but Rev. 4.4

contained all error corrections noted as fixed in 4.3B.



     An identifier indicated under "corrected in" does not guarantee that

a general release of that revision of ANSYS will occur.  It does indicate

that the correction is known and implemented in the coding that would be

part of that general release.



                     Equivalent Product Identifiers



     The ANSYS family of products occasionally undergoes name changes

between revisions and/or changes in the functionality of derived products

(such as ANSYS-PC/LINEAR).  To minimize the potential for confusion in

these areas, the important product name equivalences (similar program

functionality and error content) are listed below.



     ANSYS/ED       contains all errors      the full ANSYS product,

                    shown for                starting at Rev.  5.0, and

                                             beyond, unless otherwise

                                             noted.



     PC/LINEAR      is equivalent to         WS/LINEAR at Rev. 4.4A,

                                        and  ANSYS/LINEAR starting

                                             at Rev. 5.0.



     PC/LINEAR      is equivalent to         WS/THERMAL at Rev. 4.4A

                                        and  ANSYS/THERMAL starting

                                             at Rev. 5.0.



     PREPPOST       contains relevant        the full ANSYS product,

                    errors shown for         for included pre- and

                                             postprocessing

                                             functionality



            ANSYS (Registered Trademark) CLASS3 ERROR REPORT



                                                          ERROR NO: 96-01



KEYWORDS: POST1 SHELL NONLINEAR PDEF ETABLE PRNSOL PLNSOL



DESCRIPTION OF ERROR:



     In POST1, for shell elements, (SHELL43, 91, 93, or 143) nonlinear

data (items SEPL,SRAT,HPRE,EPEQ,PSV,PLWK) are used (ETABLE, PDEF, NSEL,

NSORT commands) or displayed (PRNSOL,PLNSOL,PLESOL,*_/ GET commands) at

the top of shell location (SHELL,TOP) instead of the location specified

by the SHELL command.



FIRST INCORRECT VERSION(S):*_/     CORRECTED IN:*_/



Rev.  5.0                          Rev.  5.3



SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:



COMMENTS:



     The PRESOL command will display both top and bottom shell data.



AUTHOR/CORRECTOR:                  DATE: January 19, 1996

               Herb Mroz



REVIEWED BY QA:                    DATE: January 19, 1996

               William J. Bryan



APPROVAL:                          DATE: January 19, 1996

               John A.  Swanson

________________________

*_/ If a product name is not included in the "first incorrect version",

the full ANSYS program is implied.  For products not listed, this error

does not apply, but see the reverse side for equivalent product

designations.



Unless noted otherwise, this error report also applies to all revisions

after the first incorrect one and prior to the corrected revision.  ALL

revisions after "corrected in" are corrected.  Manual corrections are

included in on-Line documentation as appropriate.  Please see the reverse

side of this sheet for additional information on ANSYS revision

identifiers.



                                                  FORM SASI-QA25

                                                  DEC 19, 1988



             ANSYS(Registered Trademark) CLASS3 ERROR REPORT



                                                          ERROR NO: 96-02



KEYWORDS: THERMAL ANALYSIS  KZZ   ORTHOTROPIC MATERIAL      MATRIX

REUSE



DESCRIPTION OF ERROR:



     For PLANE75,78, and SOLID5,70,87,90,98,122,123, when the

conductivities in the x and y directions (KXX and KYY) are not changed,

but the conductivity in the z direction is changed between substeps, the

results will be incorrect after the first substep.  Conductivities may

change by being temperature-dependent.



FIRST INCORRECT VERSION(S):*_/          CORRECTED IN:*_/



Rev. 5.0                                Rev. 5.3

ANSYS/Thermal Rev. 5.0A                 ANSYS/Thermal Rev.  5.3



SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:



     If KZZ does change, make sure that KXX has a slight change also.



COMMENTS:



AUTHOR/CORRECTOR:                       DATE: January 19, 1996

               Peter Kohnke



REVIEWED BY QA:                         DATE: January 19, 1996

               William J.  Bryan



APPROVAL:                               DATE: January 19, 1996

               John A. Swanson



________________________

*_/ If a product name is not included in the "first incorrect version",

the full ANSYS program is implied.  For products not Listed, this error

does not apply, but see the reverse side for equivalent product

designations.



Unless noted otherwise, this error report also applies to all revisions

after the first incorrect one and prior to the corrected revision.  ALL

revisions after "corrected in" are corrected.  Manual corrections are

included in on-line documentation as appropriate.  Please see the reverse

side of this sheet for additional information on ANSYS revision

identifiers.



                                                  FORM SASI-QA25

                                                  DEC 19, 1988



             ANSYS(Registered Trademark) CLASS3 ERROR REPORT



                                                          ERROR NO: 96-03



KEYWORDS: MATERIAL PROPERTIES      BEAM ELEMENTS            PIPE ELEMENTS



DESCRIPTION OF ERROR:



     The results are incorrect for certain line elements after the first

substep when certain material properties (MP commands) change between

substeps (such as caused by a temperature-dependent material property)

and large deflections are not used (NLGEOM,OFF).  The following specific

cases are erroneous:



1.   BEAM3,4,23,24,44,54 and PIPE16,59, if the shear modulus (GXY) is

     changed but Young's modulus (EX) is not changed.



2.   PIPE17, the piping tee element, if any material property is changed.



FIRST INCORRECT VERSION(S):*_/               CORRECTED IN:*_/



Rev. 5.0                                     Rev. 5.3

ANSYS/LinearPlus Rev. 5.0A                   ANSYS/LinearPlus Rev. 5.3



SUGGESTED USER ACTION FOR RUNNING ON UNCORRECTED VERSION:



     Use large deflections (NLGEOM,ON), even if it is not otherwise

needed.  For item 1, one can also make a small change in EX when there is

a change in GXY.



COMMENTS:



AUTHOR/CORRECTOR:                            DATE: January 19, 1996

               Peter Kohnke



REVIEWED BY QA:                              DATE: January 19, 1996

               William J. Bryan



APPROVAL:                                    DATE: January 19, 1996

               John A.  Swanson

______________________

*_/ If a product name is note included in the "first incorrect version",

the full ANSYS program is implied.  For products not listed, this error

does not apply, but see the reverse side for equivalent product

designations.



Unless noted otherwise, this error report also applies to all revisions

after the first incorrect one and prior to the corrected revision.  ALL

revisions after "corrected in" are corrected.  Manual corrections are

included in on-Line documentation as appropriate.  Please see the reverse

side of this sheet for additional information on ANSYS revision

identifiers.



                                                       FORM SASI-QA25

                                                       DEC 19, 1988



                             ANSYS QA NOTICE



                                                       NOTICE NO: QA96-01



SUBJECT: POST1      NFORCE         AXISYMMETRIC STRUCTURES



DESCRIPTION:



     The NFORCE command has no specialization for axisymmetric

structures.  Therefore, the POST1 NFORCE command produces incorrect

results for some loads when using axisymmetric structures.  The NFORCE

command treats all forces and moments as if they were in three-

dimensional space.



     There will be a change in the documentation to clarify this

limitation.



AFFECTED VERSIONS:  Rev.  4.0 - Rev.  5.2

                    Component Products Rev.  4.2 - Rev.  5.2



AUTHOR:                            DATE: January 19, 1996

     Peter Kohnke



REVIEWED BY QA:                    DATE: January 19, 1996

               William J.  Bryan



APPROVAL:                          DATE: January 19, 1996

          John A.  Swanson



Table "ANSYS 5.1 CLASS3 ERROR SUMMARY BY REPORT NUMBER", 3 pages,

omitted.



Table "ANSYS 5.1 CLASS3 ERROR SUMMARY KEYWORD SORT OF ALL REVISION

5.1.

CLASS3 ERRORS Date of this report: 1/22/96", 8 pages, omitted.



Table "ANSYS 5.2 CLASS3 ERROR SUMMARY BY REPORT NUMBER" omitted.



Table "ANSYS 5.2 CLASS3 ERROR SUMMARY KEYWORD SORT OF ALL REVISION 5.2

CLASS3 ERRORS Date of this report: 1/22/96", 2 pages, omitted.



*** END OF DOCUMENT ***



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