| Acronym | Meaning |
 | REACQ | Reacquisition |
 | PBDM | Payload Bay Door Mechanism |
 | CPCR | Computer Program Change Request |
 | DFS | Dynamic Flight Simulator |
 | SEICO | System Engineering Instrumentation |
 | MIS | Management Information System |
 | STRCH | Stretch |
 | M | Mandatory |
 | HIPO | Hierarchy Plus InPut/Process/Output |
 | CWE | Caution And Warning Electronics |