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Surface Position Indicator
in NASA
Standard Practice Instruction
in NASA
131482131483
Similar to SPI
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
A&V - Assembly and Verification
A/A - Air to Air
A/C - Aircraft
View all in NASA