Appendix G to GM 21.A.101 Changed product rule (CPR) decision
record
ED Decision 2017/024/R
CHANGED PRODUCT
RULE (CPR) DECISION RECORD |
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TC/STC No: |
Project Number: |
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Step 1: Identify the proposed type design changes to the aeronautical
product. |
The proposed type design changes are identified
here or in the following document(s): |
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Note: The CRI process is used to track/document the decisions at Step 2 and Steps 5 through 8 as required. |
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Step 2: Is the proposed type design change substantial? |
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New Type Certificate: Proceed to point 21.A.19. Point 21.A.101 does not apply. |
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Proceed to Step 3. |
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Step 3: Will you use the latest standards? |
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Latest Standards: Propose a certification basis using the CSs in effect at the date of application. Proceed to Step 8. |
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Proceed to Step 4. |
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Step 4: Arrange changes into related and unrelated groups. |
Note: For multiple groupings, continuation of this process should be
split into separate decision records. Groupings may be rationalised and
recorded in separate documents: |
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Step 5: Is each related or unrelated group a significant change? |
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Proceed to Step 6. |
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Earlier Standards: Propose a certification basis using the CSs in effect before the date of application but not earlier than the existing certification basis. Certification basis to be defined and documented as indicated (below). Proceed to Step 8. |
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Step 6: Prepare your Certification Basis List. (See paragraph 3.9 of GM
21.A.101) |
The Affected Area(s) is (are) detailed
here or in the following Certification Basis List document number(s): |
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Process and propose each applicable certification specification individually. Proceed to Step 7. |
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Not Affected Areas: |
Existing Standards: You may continue using the existing certification basis. |
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Step 7: Do the latest standards contribute materially to the level of
safety and are they practical? |
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Latest Standards: Propose a certification basis using the CSs in effect on the date of application. |
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Earlier Standards: You may propose a certification basis using the CSs in effect before the date of application but not earlier than the existing certification basis. Certification basis defined or documented as indicated below. |
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Note: Several CSs may apply to each affected area, and the assessment may differ from specifications to specifications. Indicate ‘Yes’ if compliance with any latest standard(s) is required. Indicate ‘No’ only if earlier standard(s) is (are) proposed. |
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Note: |
You may submit a proposal for the decision in Step 7; however, EASA will make the final certification basis determination. |
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Step 8: Ensure the proposed
certification basis is adequate. |
If you deem
that the certification basis is adequate, submit the proposed certification
basis to EASA. |
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Certification Basis: |
The certification basis is detailed here
or in the following document(s): |
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Based on the information provided above, I am proposing the certification basis with the following classification for the type design change. (check one) |
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Click
here to enter text. |
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Click
here to enter text. |
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Printed Name/Title |
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Signature |
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Date |
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EASA aviation regulations define a process for managing changes to aircraft design. This "Changed Product Rule" (CPR) involves assessing the significance of design changes, determining applicable airworthiness standards, and proposing a suitable certification basis to EASA for approval, ensuring continued aviation safety.
* Summary by Aviation.Bot - Always consult the original document for the most accurate information.
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