| Acronym | Meaning |
 | WWMS | Waste Water Management System |
 | THP | Thrust Horsepower |
 | LOLI | Limited Operational-Life Items |
 | FPV | Flow Proportioning Valve |
 | O/L | Overload |
 | LRV | Launch Readiness Verification |
 | T&CD | Timing And Countdown |
 | IMU | Internal Measurement Unit |
 | LLCF | Launch And Landing Computational Facilities |
 | COM | Computer Output Microfiche |