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Document Interface Control Document Departure Authorization
in NASA
Data Delivery Acknowledgement
in NASA
Digital Differential Analyzer
in NASA
122806122804122805
Similar to DDA
A&I - Assembly and Installation
A&L - Approach and Landing
A&P - Attitude and Pointing
A&PS - Administration and Program Support
MSFC Directorate
A&R - Automation and Robotics
A&RC - Application and Resource Control
A&TA - Assembly and Test Area
View all in NASA