| Acronym | Meaning |
 | M | Mach |
 | ECP | Engineering Change Proposal |
 | CADSI | Communications And Data Systems Integration |
 | CTS | Communications And Tracking System |
 | EBS | Emergency Breathing Subsystem |
 | MF | Master Frame |
 | RM | RemoteManipulator |
 | SE | Support EquiPment |
 | FRRID | Flight Readiness Review Item DisPosition |
 | MACH | Velocity Relative To The Speed Of Sound |