| Acronym | Meaning |
| LOC | Localizer |
| TRRB | Test Readiness Review Board |
| NOT | RequireNot Required |
| PFCF | Payload Flight Control Facility |
| RIG | Rate Integration Gyro |
| MIP | Modification Instruction Package |
| PSCL | Propellant Systems Cleaning Laboratory |
| WBR | Work Bench Rack |
| M | Meter |
| EDC | Engineering Design Change |