Staff Instruction (SI)

Does the proposed replacement part qualify as a PDA?

• It is not a standard or commercial part
• It does not create new airworthiness limitations
• The approval basis is a TC, an STC (but not an LSTC), an ATC, an FAA TSO or an FAA TSODA
• The part does not change the fit, form and function of the original part.
• It cannot be approved with a TC, an ATC or an FAA TSO
• It does not consist of a major component of an aeronautical product
• For part assemblies, there is an interrelationship with the aeronautical product

Does the applicant control the design?

Does the applicant have an AWM 561 Manufacturer Certificate, or has he applied for one?

Is the application complete?

• Legal and trade names and addresses
• Statement regarding the Manufacturer Certificate
• Proposed replacement parts are adequately identified
• Proposed applicable standards are identified
• Methods to show compliance with the design standards are indicated
• Data package has been submitted

Does the data package contain

• Compliance program and Certification plan
• Test and substantiation plan
• Master Drawings and/or Master Drawing List
• Production drawings and specifications
• ICA information
• Design Change Controls
• Identification of ADs
• Part marking information

• Part number
• “TCCA-PDA”
• Manufacturer identifier
• Product eligibility information

• Other information such as test plans and reports, drawing package, manufacturing processes and controls, eligibility list?

Has the applicant demonstrated that

• This is not a major change to the type design of the OEM part
• All analyses and inspections have been completed
• The design meets the applicable airworthiness standard by using test and computation
• The form and fit conforms to that of the OEM part, and there is no interference with adjacent parts
• The replacement parts can be installed on the aeronautical product
• The operating and maintenance instructions are adequate for safe operation and continued airworthiness?

Has the applicant met the adequately prepared his application for the Maintenance Certificate?

• Inspect and test the manufacturing processes to determine if
  • Part complies with the applicable airworthiness requirements
  • Materials conform to the drawing specifications
  • Part conforms to the drawings in the design
  • Fabrication process, construction and assembly conform to the design
• Is there a system to control changes to design or data, and to ensure they are incorporated to the manufacturing process?

Did the Aircraft Certification Engineer

• Create new project file
• Forward information to the AM&M CASI
• Notify Headquarters
  • Flight Test Division
    • Flight test or human factors assistance
  • Project Management
    • Process concerns, controversial part, information from TC holder, etc
  • Engineering
    • Technical concerns
  • Continuing Airworthiness
    • Analyze service history and ADs
• Request information from the TC holder regarding criticality of part
• Request conformity inspections
• Determine if the part is eligible for installation on the referenced aeronautical products
• Determine if ICA are appropriate
• Determine if the data package is adequate
• Retain necessary documentation to support the approval
• Coordinate the issuance of the approval document with the CASI
• Attach all pertinent documentation to NAPA (either physical file or electronically) before project file is closed

Are there any additional steps that must be completed?