Original Date: 08/07/1995
Revision Date: 01/18/2007
Information : Engineering Source Data Requirements
As the result of increasingly complex aircraft design and proliferation of unique groups of F-16s, Lockheed Martin Tactical Aircraft Systems (LMTAS) implemented an Engineering Source Data Requirements (ESDR) Process in 1991 to help personnel more effectively manage engineering data. Included in this formal process was interface design information (text, numeric, schedule or graphic) transmitted between engineering functions to accomplish tasks affecting product performance and schedule not required to be delivered on contract. Also included was specific engineering data requirements agreed upon by the customer and supplier. LMTAS considers the ESDR customer as the employee that needs the data, and the ESDR supplier as the LMTAS employee that must provide the data.
There are nine steps in the ESDR Process:
Identify ESDR need. Negotiate schedule and content.
Provide the schedule to Engineering Controls.
Prepare a transmittal form.
Coordinate the ESDR with interface suppliers.
Present the ESDR for Internal Design Review.
Sign ESDR after revision from the Internal Design Review.
Inform Engineering Controls for tracking purposes.
Prepare the data and submit it as per the schedule.
Checklists are provided, and monthly reports are generated. The process is scheduled to be expanded in 1995 to extend the existing ESDR by providing outside suppliers with templates for ESDR and facilitating electronic data interchange (EDI).
The success of the program has been successful on the first TVI aircraft of the Mid-Life Update Program involving F-16s. After thousands of changes have been processed for the design and installation of over 50 new wiring harnesses, there have been no wiring discrepancies. Also, there have been no significant hydraulic system discrepancies after two years’ inactivity.
For more information see the
Point of Contact for this survey.