Guidance notes to complete the Definition Alteration request (DAR) form
Applicable to the Vendors of Siemens Canada Limited “SCL” and Industrial Turbines Company (UK) Ltd “ITCL”
This document shall be used as a guide to complete Definition Alteration request forms for Siemens ADGT.
1. The DAR form shall be used to request, describe, evaluate and authorize the definition change. Anyone can
generate a DAR.
2. The DAR form must be electronically submitted. The submittal, together with any supporting information
shall be sent to the inbox listed in the table below for only Energy Unique components.
Inboxes
adgtdar.energy@siemens.com
Applicable facility
Siemens Canada Limited “SCL”,
Industrial Turbines Company (UK) Ltd “ITCL”
Please Note :- Energy Unique components start with Prefixes LW, TRN, FTR, GTR, AG, DLW, DTRN,LYB, BDE, JRC,
NPF, DTRN, DAG, DBDE, DJRC, DLW
3. It is seen as good practice to copy your Siemens Buyer and Supplier Quality Representative on all electronic
communications.
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4. The following Professional positions resources are responsible for working with the suppliers to achieve the
desired targets in Quality, Cost and Delivery. They should be made aware of proactive initiatives supplier
wishes to pursue :


Buyer
Supplier Quality Representative
5. The requestor is responsible for ensuring manufacturability of the component is not affected by the
requested change. Where applicable, the component proving process shall be invoked.
6. The DAR submittals that do not correct a definition error or improve the component may be refused.
Siemens is not obligated to approve submittals that solely benefit the supplier.
7. If the Supplier cannot specify a requested change, then the DAR Form is not appropriate. If the Supplier
Wishes to pose a question or explore the feasibility of various change options, they need to work through
their Siemens Buyer to explore the issue(s) with Siemens Engineering. Once a solution is identified, then the
DAR should be submitted for formal approval and incorporation into the drawing or specification.
8. All Boxes shaded are for Siemens use only.
9. The Template of the DAR is embedded in the last page of this document.
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Section
Form Requirement
Acceptable entries / Guidelines
A
Date
B
REQUESTED BY
- The name of the individual requesting the change shall be entered.
Supplier generated DAR -
-
The requestor shall check one of the first two selection boxes on the
left, then select one of the corresponding blocks as appropriate.
(The third selection box on the left is for Siemens use and should not
be checked on a Supplier submittal).
Supplier Request ID No.
-
The supplier’s internal tracking number shall be entered, if
applicable.
Supplier Name & Address –
-
The Supplier’s company name and full mailing address shall be entered.
Supplier (Vendor) Code –
-
The 6 digit supplier (vendor) code shall be entered (This is the
current code number that appears on your Purchase Orders from
Siemens).
C
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- The requestor to enter the date in the Requested box.
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Section
C
D
Form Requirement
Acceptable entries / Guidelines
Phone, Fax, and e-mail address
The requestor’s phone number, fax number, and e-mail address shall be
entered.
Siemens Buyer
The current Siemens Buyer the supplier is in contact with shall be
entered.
Other Siemens Personnel Contacted
Any other Siemens personnel contacted regarding the alteration
request.
Siemens Definitions affected
The requestor shall identify the drawing or specification per the title
block on sheet one of the document. Multiple definitions in the same
part family may be included on a single DAR. The requestor shall also
list the revision letter currently being worked to.
Siemens Definition No, and current
Revision Letter
Definition Re-issue status
Supplier Definition No.
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Leave Blank
The corresponding supplier definition number and rev letter shall be
entered if applicable. The latest version of the document shall be
submitted electronically.
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Section
D
Form Requirement
Definition Title
Acceptable entries / Guidelines
The requestor shall add the definition title per the title block on sheet
one of the document.
Abbreviations are acceptable.
Engine Model(s)
Leave Blank
Siemens Casting/Forging Definitions Answer whether any Siemens castings or forgings are affected. A
Affected
change in Definition is any change to a Siemens casting or forging
drawing, including notes or specifications. If yes, the applicable
drawings shall be entered in the table.
E
Reason for Alteration
The requestor shall select the primary reason for the change request.
If “OTHER” is chosen, a brief description should be entered.
F
Business Justification
The Business Justification should address the specific Quality, Cost and
Delivery (QCD) impacts based
on Siemens approval of the requested change(s).
These should normally be expressed by one or two sentences for each
individual QCD item. You must address Quality, Cost and Delivery in this
section.
For more examples, see Appendix A.
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Section
G
Form Requirement
Action requested
Acceptable entries / Guidelines
This Section is used, by the Supplier, to request specific changes to
Siemens Drawings (or Design Specifications). The format should allow
the Siemens Engineer, when a change is approved as submitted, to
simply copy and paste the requested Action into drafting instructions.
The section should normally identify and request a change “From” (the
current definition), then “To” (the proposed definition).
If a Drawing has Zones, identify the Zone where the proposed change is
located.
If a Drawing has multiple Sheets, identify the Sheet that is affected.
When requesting a Specification change, identify the Page and
Paragraph Number.
Example:
Siemens Drawing Number LW12345:
Change: Sheet 4, Zone D-4
From: 6.2435 - 6.2465” O.D.
To: 6.24 - 6.25” O.D.
For more examples, see Appendix B.
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Section
Form Requirement
Acceptable entries / Guidelines
H
Alteration Effect Summary
Alteration effects checklist The requestor must consider each of the DAR criteria as part of the
substantiation of the change.
Siemens will check the appropriate boxes in the shaded area of this
section for all alteration requests.
I
Technical Justification
The Technical Justification should be used to communicate the
technical rationale for approving the proposed change(s) to the
Siemens Engineer.
This section should contain all the engineering and technical discussion
of why the change is acceptable and/or beneficial. It should be clearly
stated why the DAR will not negatively impact Form, Fit or Function.
The Siemens Engineer should ideally be able to read this section and
reach a conclusion with minimal additional research.
All applicable Specifications (AMS, ANSI, EDS, EPS, etc...) must be
referenced within this section. If the Supplier has included Test Reports,
Drawings, or Internal Specifications as a separate attachment, those
must be referenced in this section.
J
ALTERATION INSTRUCTIONS
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-
Leave Blank
7
Section
Form Requirement
K
(INITIAL ENGINEERING DISPOSITION
& NOTIFICATION TO REQUESTOR)
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Acceptable entries / Guidelines
-
Leave Blank
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APPENDIX A - EXAMPLES OF BUSINESS JUSTIFICATION (SECTION F):
Quality: Approval of this DAR will improve current PPM non-conformance rate of 3,000 for Siemens p.n.
LW12345, to 100 PPM.
Cost: Approval of this DAR will result in a recurring $5.00 unit piece price savings, due to reduced
manufacturing and overhead costs.
Delivery: Approval of this DAR will reduce lead time by 2 weeks.
APPENDIX B - EXAMPLES OF “ACTION REQUESTED” (SECTION G):
Request to add alternate material:
Specification EDS 9987:
Change: Page 26, Paragraph 5.4.3.
From: “Perform cyclic tests for 16 hours during ATP”
To: “Perform cyclic tests for 4 hours during ATP.”
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Definition Alteration request ( DAR) Template
Change History
Revision
1
Date
Dec 2015
Description of Change
This document is an initial issue of Siemens Energy, Inc. Quality Requirements
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